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www.sensata.com Copyright © 2023 Sensata Technologies, Inc. | IAL/CEL/LEL SERIES HYDRAULIC MAGNETIC CIRCUIT PROTECTORS Introduction IAL/IUL/IEL/LEL magnetic circuit protectors provide low-cost power switching, reliable circuit protection and accurate circuit control for equipment in the international marketplace. IAL models are for those applications where the unit’s inherent attributes are desired, but compliance with the various standards is not required. IUL models have been tested and approved in accordance with UL 1077 requirements for UL recognition. IEL/LEL models are TUV approved to IEC 60947-2. They meet IEC spacing requirements, mandatory for equipment which must comply with IEC specifications. In addition, the IEL models are UL recognized to UL 1077 as supplementary protectors and the LEL models are UL listed under the conditions of UL 489. Both are CSA certified and CCC Approved. The IEL is CSA certified as a supplementary protector per CSA C22.2–No. 235. The CEL model has achieved two new enhancements, including a single pole, 125 amp rating with TÜV approval, and a parallel 4-pole version with 400 amp rating. Airpax™ IAL/CEL/LEL circuit protectors are available in a wide variety of configurations, including series, series with auxiliary switch, shunt and relay with choice of delays and ratings in DC and/or 50/60Hz or 400Hz versions. Single or multi-pole versions are available with a variety of pole arrangements to meet your specifications. Please see the appropriate product specification table for ratings and limitations. SINGLE POLE, STANDARD STUD TERMINAL (SEE TABLE) (SEE TABLE) [3.56] .140 [3.61] .142 [47.22] 1.859 [17.53] .690 ON OFF [7.14] .281 [49.28] 1.940 STUD TERMINAL TYPES Screw Stud Thread Dimension “A” Dimension “B” M6 .510 ± .045 [12.95 ± 1.14] .652 ± .035 [16.56 ± 0.89] [13.84 ± 1.14] .687 ± .035 [17.45 ± 0.89] M5 .510 ± .045 [12.95 ± 1.14] .652 ± .035 [16.56 ± 0.89] 10-32 .545 ± .045 [13.84 ± 1.14] .687 ± .035 [17.45 ± 0.89] Tolerance ± .015 [.39] unless noted. Dimensions in brackets [ ] are millimeters.

www.sensata.com Page 2 Copyright © 2023 Sensata Technologies, Inc. [19.05] .750 [36.53] 1.438 [63.24] 2.490 [10.21] .402 [5.59] .220 [52.32] 2.060 2X 6-32 THREAD .140 [3.56] DEEP M3 ISO THD. OPTIONAL [7.13] .281 [49.28] 1.940 [3.61] .142 Screw Terminal Single Pole [7.13] .281 [49.28] 1.940 [6.35] ÿ .250 MAX. [15.04] .592 [9.96] .392 [9.53] .375 Clip Terminal [24.57] .967 Bullet Terminal [19.18] .755 [52.32] 2.060[36.78] 1.448 [3.96] 2X ÿ .156 [10.98] .432 Mounting Detail Panel Mounting Detail Tolerance ±.005 [.13] unless noted. Notes: A Terminal protrusion dimensions are referenced from back of mounting panel. B Each screw terminal is supplied with a 10-32x.312 [7.92] or M5 x 8mm screw, flatwasher and external tooth lockwasher. C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex nut (<=70A) (<=50A for LEL),1/4-20 or M6 hex nut (>70A)(>50A for LEL). Each outer terminal is supplied with a flatwasher, tooth lockwasher and a hex nut. MULTI-POLE CIRCUIT PROTECTORS Multi-pole units are combined in an assembly with the trip mechanisms internally coupled. A fault in any protected circuit opens all poles simultaneously. Applications include use in polyphase circuits, single-phase three-wire systems, or in two or more related but electrically isolated circuits. A mix of delays, ratings and configurations are offered. The auxiliary switch is offered with either gold or silver contacts and is available when a series construction pole is specified. An assembly consisting of two single pole units, having their trip mechanisms internally coupled, is available with either a single toggle handle or with a handle per pole. Please see decision one of the part number decision tables. Individual poles may vary in ratings, delays and internal configurations. If the poles are of series construction, an auxiliary switch may be included in either or both poles, allowing you to mix SELV and hazardous voltages. Two Pole

www.sensata.com Page 3 Copyright © 2023 Sensata Technologies, Inc. (SEE TABLE) (SEE TABLE) [3.56] .140 [3.61] .142 [47.22] 1.859 [17.53] .690 ON OFF [7.14] .281 [49.28] 1.940 Two Pole [5.59] .220 MAX. [36.53] 1.438 [63.24] 2.490 [10.21] .402 [52.32] 2.060 [38.48] 1.515 4X 6-32 THREAD .140 [3.56] DEEP M3 ISO THD. OPTIONAL MAX. [38.48] 1.515 IELH11 IEL11 Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters. [19.05] .750 [52.32] 2.060 [38.86] 1.530 [36.78] 1.448 [10.97] .432 [3.96] 4X ÿ .156 Two Pole* [19.05] .750 Two Pole* Panel Mounting Detail Tolerance ±.005 [.13] unless noted. M6 .510 .652 1/4 - 20 .545 .687 M5 .510 .652 10 - 32 .545 .687 Screw stud thread Dim. ìAî (± .045) Dim. ìBî (± .035) Note: Each outer terminal is supplied with a flatwasher, tooth lockwasher and a hex nut. Note: A Terminal protrusion dimensions are referenced from back of mounting panel. B Each screw terminal is supplied with a 10-32x.312 [7.92] or M5 x 8mm screw, flatwasher and external tooth lockwasher. C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex nut (<=70A), 1/4 -20 or M6 hex nut (>70A).

www.sensata.com Page 4 Copyright © 2023 Sensata Technologies, Inc. The three pole structure consists of three single pole units assembled with an internal mechanical interlock which actuates all units simultaneously. The units are available with either a single toggle handle or with a handle per pole. Units with four pole construction operate with a minimum of two center toggle handles or with a handle per pole. Please see decision one of the part number decision tables. Mixing of delays, ratings and configurations is available in each individual pole. The auxiliary switch is offered in any series trip pole. Breaker poles are numbered consecutively when viewed from the terminal side, with the ON position up, starting with pole #1 on the left side and proceeding to the right. Three Pole and Four Pole Units [57.53] 2.265 MAX. Three Pole IEL111 [19.05] .750 [19.05] .750 Mounting Detail* MAX. [57.53] 2.265 Mounting Detail* [19.05] .750 [19.05] .750 [57.91] 2.280 Three Pole IELH111 MAX. [76.58] 3.015 Four Pole IEL1111 [19.05] .750 [19.05] .750 [19.05] .750 [38.86] 1.530 Mounting Detail* MAX. [76.58] 3.015 [19.05] .750 [19.05] .750 [19.05] .750 [76.96] 3.030 Mounting Detail*Four Pole IELH1111 Panel Mounting Detail Tolerance ±.005 [.13] unless noted. BX - FLAT ROCKER HANDLE The innovative new design of our IAL/CEL/LEL BX Style circuit protectors features a flat rocker that will satisfy your aesthetic needs while guarding against accidental actuation, providing the highest degree of circuit protection and quality. Only Airpax offers this new standard in user interface. Available on a variety of versions with a full range of agency approvals, the IEL BX style circuit protectors meet or exceed all current performance specifications, including interrupting capacities up to 50,000 amperes. 1.239 [31.47] .387 REF. [9.84] .768 [19.49] 1.859 [47.22] 2.490 MAX. [63.25] 2.173 MAX. [55.19] .314 [7.98] 1.395 [35.43] .125 [3.17] 6-32 THD. MOUNTING M3 ISO THD. OPTIONAL 1.660 [42.16] .750 MAX. [19.05] OPTIONAL GUARD (SEE DETAIL ìCî) SINGLE POLE 1.660 [42.16] .750 [19.05] 1.260 [32.00] .200 [5.08] 2X ÿ.156 [3.96] Panel Mounting Detail Mounting Detail Tolerance: ±.005 [.13] unless noted O N I ON I ACTUAT ION ACCESS (SEE NOTE) DE TA IL "A" ON I O OFF O N I O OF F ON I O OFF ON I OF F O HANDLE POSITION "OFF" GUARD WITH NO ACTUAT E OFF FEA TURE (SIXTH DECISION, X) HANDL E POSITION "ON " GUARD WITH NO ACTUA TE OFF FE AT URE (SIXTH DECISION, X) PUS H TO RE SET NOTE: ACCESS IS LIMITED TO A DEVICE SMALLER THAN THE UNDER WRITERS LABORAT OR Y "ARTICULA TED PROBE" HANDLE POSITION "OFF" WITH GUARD (SIXTH DECISION, G) HANDL E POSITION "ON " WITH GUAR D (SIXTH DECISION, G) HANDLE POSITION "OFF" WITHOUT GUARD HANDLE POSITION "ON " WITHOUT GUAR D PUSH TO RESE T Tolerance ± .015 [.39] unless noted. Dimensions in brackets [ ] are millimeters. *See Single Pole Mounting Detail for Hole Sizes and Locations.

www.sensata.com Page 5 Copyright © 2023 Sensata Technologies, Inc. LELHP/CELHP CIRCUIT PROTECTORS The Airpax™ LELHP/CELHP high current magnetic circuit protector compliments our entire series of LEL circuit protectors. Its unique, parallel current sensing design provides precise current overload protection and reliability in the compact size of a two pole LEL. The unit is ideal for high power DC applications such as drive motor systems and telecommunication power systems. LEL is available in series and series with auxiliary switch configurations with a choice of delays for DC ratings of 125, 150, 175 and 200 amperes. The CEL has been enhanced to include these same ratings plus a 4-pole, parallel 400 amp rating for UL489A. The LELHP is UL listed under the conditions of UL489 and CSA certified. The CELHP is UL listed under the conditions of UL489A. Mid-trip handle indication, voltage trip and remote operator options complete the LELHP/CELHPcircuit breaker series. Please see the individual product tables for approved ratings. Notes: A Terminal protrusion dimensions are referenced from back of mounting panel. B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm screw, flatwasher and external tooth lockwasher. C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex nut (<=70A), 1/4 -20 or M6 hex nut (>70A). D Units are supplied without bus bars must have a minimum copper strap (1 31/32 x 1/2 x 1/16 ) of appropriate length to accommodate connections tying each set of terminals together. E Other spacing available upon request. Contact factory for assistance. Tolerance ± .015 [.39] unless noted. Dimensions in brackets [ ] are millimeters. ON OFF [17.53] .690 [47.22] 1.859 [49.28] 1.940 [7.14] .281 [3.56] .140[13.84] .545 [16.26] .640 [26.59] 1.047 [32.56] 1.282 [17.45] .687 1/4-20 STUD (M6 x 1.0 STUD OPTION) [52.32] 2.060 [5.59] .220 [36.53] 1.438 [10.21] .402 [63.25] 2.490 [19.05] .750 2X 6-32 THREAD .140 [3.56] DEEP M3 ISO THD OPTIONAL [38.48]

1.515 MAX

[18.80] .740 (Note E) Two Pole [18.80] (Note E) .740 [18.80] (Note E) .740 Three Pole (Note D) [36.53] 1.438 [10.21] .402 [63.25] 2.490 [57.53] 2.265 MAX. OFF OFF OFF [52.32] 2.060 [5.59] .220 6X 6-32 THREAD .140 [3.56] DEEP M3 ISO THD OPTIONAL Four Pole (CEL _ _ P and CML _ _ P only) 8X 6-32 THREAD .140 [3.56] DEEP M3 ISO THD OPTIONAL OF FFF OFFOFFO 3.005 [76.33] .402 10.21 1.438 36.53 2.490 63.25 .220 5.59 2.060 52.32 (SEE TABLE) DIM. "H" (SEE TABLE) DIM. "H" (SEE TABLE) DIM. "H" MAX

www.sensata.com Page 6 Copyright © 2023 Sensata Technologies, Inc. IALN/IULN PANEL SEAL CIRCUIT PROTECTORS The lALN/IULN family is a sealed toggle version of the IAL/IUL family. The silicone rubber seal around the handle assures panel seal integrity and makes this style a natural for harsh environments. This sealed toggle family is available in one to three pole models with ratings of .050 to 100 amperes. [51.82] 2.040 [3.30] .130 ON OFF 6-32 MTG. SCREW 1/2-32 HEX NUT LOCKWASHER [19.05] .750 [15.88] .625[3.61] .142 FOR HIGH SHOCK MTG. [34.92] 1.375 [16.66] .656 [63.25] 2.490 [19.05] .750 KEYWAY [38.48] 1.515 MAX. [57.53] 2.265 MAX. Three PoleSingle Pole Two Pole (Optional handle may be in pole 2 instead of pole 1.) [13.08] ÿ.515 [3.96] ÿ.156 [16.66] .656 [19.05] .750 MAX. [19.05] .750 [19.05] .750 MAX. MAX. Optional handle Notes: A Terminal protrusion dimensions are referenced from back of mounting panel. B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm screw, flatwasher and external tooth lockwasher. C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex nut (<=70A), 1/4 -20 or M6 hex nut (>70A). Panel Mounting Details: Tolerance ±.005 [.13] Unless noted. Single Pole Two Pole* Three Pole* *See Single Pole Mounting Detail for Hole Sizes and Locations.

www.sensata.com Page 7 Copyright © 2023 Sensata Technologies, Inc. IALZX/IULZX/IELZX ROCKER HANDLE The IALZX/IULZX/IELZX style adds our rocker handle options of contrasting dual color rocker actuators, affording a clear visual indication of the handle position and integrated handle guards, to help prevent accidental turn-on and turn-off of the unit. Available with a black rocker and white, red or green indicator color for either ON or OFF indication. Note: Tolerance ± .015 [.38] unless noted. Dimensions in brackets [ ] are millimeters. 1.239 [31.47] .420 REF [10.67] .750 MAX. [19.05] 2X 6-32 THD. M3 ISO THD. OPTIONAL ON .506 [12.85] OPTIONAL HANDLE GUARDS 1.660 [42.16] OFF .772 [19.62] 1.859 [47.22] 2.173 MAX. [55.19] .314 [7.98] .201 [5.11] 1.395 [35.43] 2.490 MAX. [63.25] 1.660 [42.17] .750 [19.05] 1.260 [32.00] 2X ÿ .156 [3.96] .200 [5.08] Panel Mounting Detail Panel Mounting Detail Tolerance ±.005 [.13] unless noted. Series Trip The most popular configuration for magnetic protectors is the series trip where the sensing coil and contacts are in series with the load being protected. The handle position conveniently indicates circuit status. In addition to providing conventional overcurrent protection, it’s simultaneously used as an on-off switch. Shunt Trip The shunt trip is designed for controlling two separate loads with one assembly. The control is established by providing overload protection for the critical load. When the current through this load becomes excessive and reaches the trip point, the protector will open and remove power from both loads simultaneously. The total current rating of both loads must not exceed the maximum contact rating. Dual Coil By combining two electrically independent coils on a common magnetic circuit, it is possible to provide contact opening when either an over-current or trip voltage is applied to the respective coils. One coil will be a current trip coil with standard specifications. The second, or dual coil, can be used to provide a control function permitting contact opening from a remote interlock or other transducer functions. Standard coils are 6, 12, 24, 48, 120 and 240 volts. Tripping is instantaneous and must be removed (usually self-interrupting) after trip. Auxiliary Switch (Applies to Series Trip Only) This is furnished as an integral part of a series pole in single or multi-pole assemblies. Isolated electrically from the protector’s circuit, the switch works in unison with the power contacts and provides indication at a remote location of the protector’s on-off status. Auxiliary switch contacts actuate simultaneously with the main breaker contacts, and will open regardless of whether the breaker contacts are opened manually or electrically. For auxiliary switch ratings below 6Vac or 5Vdc, an auxiliary switch with gold contacts, designated as REG is available. Gold contacts are not recommended for load current above 100 milliamps. CONFIGURATIONS

www.sensata.com Page 8 Copyright © 2023 Sensata Technologies, Inc. SWITCH ONLYSERIES 1.940 [49.28] .281 [7.13] Dimension B (See Table) Dimension A (See Table) 1.290 [32.77] .648 [16.46] 1.055 [26.80] NC NO C BREAKER IN OFF POSITION Series with Auxiliary Switch Series and Switch Only 1.26 [32.00] .278 [7.05] 1.940 [49.28] 2.640 MAX. [67.06] (SEE NOTE A) .795 [20.19] .660 ±.045 [16.76] ±1.14] Dimension B (See Table) -IREC4, -IREG4 .260 [6.60] .110 [2.79] 2.438 MAX. [64.52] (SEE NOTE A) -IREC5 .250 [6.35] .187 [4.75] 2.454 MAX. [64.52] (SEE NOTE A) DUAL COILSHUNT Spacing for TUV Switch [17.17] .676 [24.66] .971 [32.16] 1.266 tooth lockwasher and a hex nut. Shunt and Dual Coil STUD TERMINAL TYPES Screw Stud Thread Dimension “A” Dimension “B” M6 .510 ± .045 [12.95 ± 1.14] .652 ± .035 [16.56 ± 0.89] [13.84 ± 1.14] .687 ± .035 [17.45 ± 0.89] M5 .510 ± .045 [12.95 ± 1.14] .652 ± .035 [16.56 ± 0.89] 10-32 .545 ± .045 [13.84 ± 1.14] .687 ± .035 [17.45 ± 0.89] Note: A Terminal protrusion dimensions are referenced from back of mounting panel. B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm screw, flatwasher and external tooth lockwasher. C Stud terminals are supplied with a flatwasher, external tooth lock washer and a 10-32 or M5 hex nut (<=70A), 1/4-20 or M6 hex nut (>70A).

www.sensata.com Page 9 Copyright © 2023 Sensata Technologies, Inc. Relay Trip This permits the overload sensing coil to be placed in a circuit which is electrically isolated from the trip contacts. The coil may be actuated by sensors monitoring pressure, flow, temperature, speed, etc. Other typical applications include crowbar, interlock and emergency/rapid shutdown circuitry. Trip may be accomplished by voltage or current, which must be removed after trip. Voltage Trip Sometimes called “dump circuits” or “panic trip circuits”, these units make it possible to open main power contacts with lower power inputs from one or more sources. This configuration is becoming increasingly more important for sensitive circuitry and denser packaging in automation systems. Available in series, shunt or relay configurations. Notes: Tolerance ± .015 [.39] unless noted. Dimensions in brackets [ ] are millimeters. A Terminal protrusion dimensions are referenced from back of mounting panel. B Each screw terminal is supplied with a 10-32x.312[7.92] or M5 x 8mm screw, flatwasher and external tooth lockwasher. C Stud terminals are supplied with a flatwasher, external tooth lockwasher and a 10-32 or M5 hex nut (<=70A), 1/4 -20 or M6 hex nut (>70A). Barriers [69.60] 2.740 [17.02] .670 [27.89] 1.098 [78.74] 3.100 [35.00] 1.378 [24.18] .952 [7.69] .303 [3.11] .122 FIG.2FIG.1 [18.34] .722 [33.78] 1.330 [7.14] .281 [16.76±1.14] .660±.045 [49.28] 1.940 (SEE NOTE A) [67.06]

2.640 MAX

[20.19] .795 RELAY Relay and Dual Coil DUAL COIL [65.02] 2.560 [29.13] 1.147 [18.31] .721 [65.02] 2.560 [29.13] 1.147 [18.31] .721 [.84] .033 [.84] .033 NOTE: THIS BARRIER CAN BE FLIPPED TO COVER EITHER POLE. PLEASE CONTACT FACTORY FOR SPECIFIC PART NUMBER FIG.4FIG.3 BARRIER OPTIONS Rating Option Standard Barrier Optional Barrier IEL 240/415 VAC Fig. 1 Fig. 2, 3 & 4

415 VAC (TUV)

1/4-20, M6 studs for AC 120/240 VAC multi-pole Fig. 2 Fig. 3 & 4 125VDC LEL All multi-pole 50/60 Hz Fig. 2 Fig. 3 & 4 All multi-pole 80 VDC, if opposite polarity Fig. 2 Fig. 3 & 4 125VDC Fig. 2 Fig. 3 & 4

www.sensata.com Page 10 Copyright © 2023 Sensata Technologies, Inc. Mid-Trip Indication Circuit protection, rapid fault location and alarm capability are blended together in the Airpax mid-trip indication option. This option is designed for automatic handle movement to a middle position upon electrical overload, allowing for easier detection of the fault circuitand minimizing downtime due to the overload condition. In the optional auxiliary switch configuration, the switch allows an alarm or signal to be forwarded when the breaker trips and the handle moves to the middle position. The alarm can be disengaged by the manual actuation of the handle to the OFF position. Once the fault has been corrected, the circuit breaker can be reset to the ON position. The mid-trip option is available in one, two or three pole toggle handle packages and in either standard panel screw or snap-in mounting. Please see specification tables of specific product for available ratings. Snap-In Mounting The snap-in mounting adapter allows for simplified mounting of most IEL/LEL toggle handle products. Prior to shipment, the adapter is attached to the circuit breaker during our final product assembly, allowing you to securely snap the unit into a rectangular panel cut-out. This eliminates the need for panel mounting hardware and associated assembly costs. Available for units up to three poles, with or without an option handle guard. C NO NC C NO NC BREAKER IN ON OR MANUALLY TURNED OFF POSITION BREAKER IN MID-TRIP POSITION (ELECTRICALLY TRIPPED) ON POSITION OFFPOSITION MID-TRIP POSITION (SEE TABLE) [74.63±.18] 2.938±.007 DIM.ìAî Mid-Trip Handle Positions Panel Mounting Detail [52.35] 2.061 [25.27] .995 [81.79] 3.220 [44.45] 1.750 [63.37] 2.495 [17.45] .687 [39.62] 1.560 PANEL MOUNTING OPTIONS # of Poles Dimension “A” Panel Thickness 1 pole .760 ± .007 [19.30 ± .18] .062 ± .005 [1.57 ± .13] 2 pole 1.530 ± .007 [38.86 ± .18] .062 ± .005 [1.57 ± .13] 3 pole 2.280 ± .007 [57.91 ± .18] .062 ± .005 [1.57 ± .13] Note: Tolerance ± .015 [.39] unless noted. Dimensions in brackets [ ] are millimeters Panel Mounting Detail Tolerance ±.005 [.13] unless noted.

www.sensata.com Page 11 Copyright © 2023 Sensata Technologies, Inc. OPERATING CHARACTERISTICS NOMINAL DCR /IMPEDANCE Current Ratings (Amps) Resistance (ohms) Impedance (ohms) Impedance (ohms) DC Delays AC, 50/60Hz Delays AC, 400Hz Delays 51, 52, 53, 59 61, 62, 63, 69 41, 42, 43, 49 0.20 45.8 28.5 71.94 1.0 1.38 1.10 2.85 2.0 0.371 0.29 0.76 5.0 0.055 0.051 0.12 10.0 0.017 0.016 0.032 20.0 0.006 0.006 0.010 30.0 0.003 0.004 0.006 50.0 0.0019 0.0018 0.0019 60.0 0.00157 0.00134 - 70.0 0.00147 0.00133 - 80.0 0.00146 0.00123 - 90.0 0.00135 0.00114 - 100.0 0.00135 0.00114 - 125.0 0.0005 - - 150.0 0.0005 - - 165.0 0.0004 - - 175.0 0.0004 - - 200.0 0.0004 - - 250.0 0.0004 - - 400 0.0003 - - Notes: DCR and impedance based on 100% rated current applied and stablized a minimum of one hour. No 53 delay on 125 amp single pole or 400 amp four pole devices Tolerance: .02 amperes to 2.5 amperes, ± 20%; 2.6 amperes to 20 amperes, ± 25%; 21 amperes to 50 amperes, ± 50%. Consult factory for special values and for coil impedance of delays not shown ** Paralleled poles only, 400 amps only available on CELHP

www.sensata.com Page 12 Copyright © 2023 Sensata Technologies, Inc. PERCENTAGE OF RATED CURRENT VS TRIP TIME IN SECONDS AT +25°C Delay 100% 125%* 150% 200% 400% 600% 800% 1000% Notes: All trip curves and trip currents are specified with the protector mounted in the normal vertical position at ambient temperature of +25° C. Protectors do not carry current prior to application of overload. A: Ratings above 30 amps may deviate from the above limits by approximately 10% (130% for delay 49). * No 53 delay on 125 amp single pole or 400 amp four pole devices * 135% for delay 71, 72, 73 & 79 * Delays, 64, 65, and 66 are used only for shunt plate constructions, will not be TUV or CCC approved. DELAY CURVES A choice of delays is offered for DC, 50/60Hz, 400Hz, or combined DC/50/60Hz applications. Delays 49, 59, 69 and 79 provide fast-acting, instantaneous tripping and are often used to protect sensitive electronic equipment (not recommended where a known inrush exists). Delays 41, 51, 61 and 71 have a short delay for general purpose applications. Delays 42, 52, 62 and 72 are long enough for most transformers and capacitor loads. Delays 43, 53, 63 and 73 are extra long for special motor applications. Inrush Pulse Tolerance Pulse tolerance is defined as a single pulse of half sine wave peak current amplitude of 8 milliseconds duration that will not trip the circuit breaker. 400Hz, DC, 50/60Hz Delay Curves (typ) 800700600500400300200150 125 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 61 MAY TRIP 800700600500400300200150 125 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 62DELAY 62DELAY 62 MAY TRIP

www.sensata.com Page 13 Copyright © 2023 Sensata Technologies, Inc. 800700600500400300200150 125 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 63 MAY TRIP 800700600500400300200150 125 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 69 MAY TRIP 400Hz, DC, 50/60Hz Delay Curves (typ) PULSE TOLERANCES Delay Pulse Tolerance 61, 62, 63, 71, 72, 73 10 times (approx.) rated current 61F, 62F, 63F, 71F, 72F, 73F 12 times (approx.) rated current 64, 65, 66 (0 - 50A) 25 times (approx.) rated current 64, 65, 66 (>50 - 80A) 20 times (approx.) rated current 64, 65, 66 (>80 - 100A) 18 times (approx.) rated current 800700600500400300200150 125 1000 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 51 MAY TRIP 800700600500400300200150 125 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 52 MAY TRIP TIME IN SECONDS 800700600500400300200150 125 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 53 MAY TRIP 800700600500400300200150 125 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 59 MAY TRIP

www.sensata.com Page 14 Copyright © 2023 Sensata Technologies, Inc. SHEET 29 of 29 MAY TRIP 900 1000 PERCENT OF RATED CURRENT .001 10000 .01 100 1000 TIME IN SECONDS 0 100 125 150 200 300 400 500 600 700 800 SHEET 27 of 29 MAY TRIP 900 1000 PERCENT OF RATED CURRENT .001 10000 .01 100 1000 TIME IN SECONDS 0 100 125 150 200 300 400 500 600 700 800 DELA Y 64 DELA Y 66 SHEET 28 of 29 MAY TRIP 900 1000 PERCENT OF RATED CURRENT .001 10000 .01 100 1000 TIME IN SECONDS 0 100 125 150 200 300 400 500 600 700 800 DELA Y 65 400Hz Delay Curves (typ) *Available only in IAL/IUL/IEL; not available in LEL. 800700600500400300200150 125 1000 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 41 MAY TRIP TIME IN SECONDS 800700600500400300200150 125 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 43 MAY TRIP 800700600500400300200150 130 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 49 MAY TRIP

www.sensata.com Page 15 Copyright © 2023 Sensata Technologies, Inc. 400Hz Delay Curves (typ) 800700600500400300200150 135 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 DELAY 71 800700600500400300200150 135 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 MAY TRIP DELAY 7 MAY TRIP 3 DELAY 79 800700600500400300200150 135 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 MAY TRIP 800700600500400300200150 135 1000 TIME IN SECONDS 1000 100 .01 10000 .001 PERCENT OF RATED CURRENT 1000900 MAY TRIP DELAY 72

www.sensata.com Page 16 Copyright © 2023 Sensata Technologies, Inc. IAL/IUL/IEL/IDL/LEL SPECIFICATIONS Trip Free Will trip open on overload even when forcibly held in the ON position. This prevents the operator from damaging the circuit by holding the breaker on. Trip Indication The operating handle moves positively to the OFF or mid-trip position on electrical overload. Ambient Operation IAL/IUL/IEL protectors operate in temperatures between –40°C to +85°C. Insulation Resistance Not less than 100 megohms at 500 volts DC. Dielectric Strength IAL/IUL/IEL protectors withstand 3750Vac (1250Vac for LEL), 60Hz for 60 seconds between all electrically isolated terminals except auxiliary switch terminals shall withstand 600Vac, 60Hz for REG and REC types. Four terminal dual coil and relay construction (not offered in the LEL) will withstand 1500Vac. Endurance Operating as a switch, the operating life exceeds 10,000 operations, 6000 at rated load, 4000 without load, at a rate of 6 per minute.

Electrical Characteristics

for 240/415Vac and above 50 amperes are not suitable for across-the-line motor starting. Poles One through six poles available. Construction Series, shunt, relay dual coil and series with auxiliary switch available in various delays and combinations. Auxiliary Switch amperes, 250 volts, 60Hz; 3.0 amperes, 50 volts DC (REC type) or 0.1 amperes, 125 volts, 60Hz (REG type). TUV approved switches have a maximum UL rating of 10.0 amperes, 250 volts, 60Hz (REC type); or 0.1 amperes, 125 volts, 60Hz (REG; type). The maximum VDE ratings are 1.0 amperes, 125 volts, 60Hz (REC type); 0.1 amperes, 125 volts, 60Hz (REG type). Salt Spray (Corrosion) Meet the requirements of MIL-PRF-55629 when tested in accordance with Method 101 of MIL-STD-202. Moisture Resistance Meet all the requirements of MIL-PRF-55629 when tested in accordance with Method 106 of MIL-STD-202. Shock Circuit protectors shall not trip when tested per MIL-STD-202, Method 213, Test Condition I with 100% rated current applied to delayed units and 80% rated current to instantaneous units.

www.sensata.com Page 17 Copyright © 2023 Sensata Technologies, Inc. Vibration Circuit protectors shall not trip when vibrated per MILSTD- 202, Method 204, Test Condition A with 100% rated current applied to delayed units and 80% rated current to instantaneous units. UL-1500 (Marine Ignition Protected) The IDL/IDLH is approved for Marine Ignition Protection (series configuration only), covering ignition protected circuit breakers. This specification requires devices to be used in accordance with the requirementsof U.S. Coast Guard and Fire Protection Standard for Pleasure and Commercial Motor Craft, ANSI/MFPA #302. APPROXIMATE WEIGHT PER POLE Ounces Grams 3.1 90 RECOMMENDED TORQUE SPECIFICATIONS Component Torque (in-lbs) 6-32 Mounting Inserts 6 to 8 M3 Mounting Screws 4 to 5 10-32 Screw Terminals 14 to 15 M5 Terminal Screws 14 to 15 10-32 Stud Terminals 13 to 14 M5 Stud Terminals 13 to 14 1/4 - 20 Stud Terminals 40 to 45 M6 Stud Terminals 40 to 45 1/2 - 32 Mounting Bushing 30 to 35 Where applicable, mechanical support must be provide to the terminals when applying torque The ordering code for IAL/IUL/IEL/LEL circuit protectors may be determined by following the decision steps in the appropriate part number decision table subsequent to this page. The coding given permits a self-assigning part number but with certain limitations. Special applications may require a factory assigned part number. Typical examples are units with mixed ratings, combinations of styles, or construc- tions not listed in the third decision table, etc. With these, it is suggested that order entry be by description and/or drawings, and a part number will be established. Additionally, it is standard policy to establish a factoryassigned part number whenever a descriptive drawing exists to provide cross reference, traceability and manufacturing control. When specifying a circuit breaker for AC motor start or high inrush applications, the peak amplitude and surge duration should be specified for facto- ry assistance in rating selection. For example the code shown is the code for a single pole breaker with a series construction and auxiliary switch, designed for operation in a 50/60Hz circuit. It has a short time delay, rating of 20 amperes and a marked black handle, and is TUV approved. To determine the ordering number for your particular IAL/IUL/IEL unit, simply follow the steps shown. You may use this number to place an order or as a reference for further questions you may have. MARKING DETAIL “A” (SEE TABLE) LOAD LOAD LINE LOAD LOADLINE LINELINE OFFO N ON OFF OFFO N ON OFFO O O O LINE LINE ROCKER HANDLE COLOR INDICATING COLOR INDICATING COLOR ROCKER HANDLE COLOR INDICATION “ON” Mounting/Indicator Code: A, B, C INDICATION “OFF” Mounting/Indicator Code: F, G, H ON I ON I O OFF OFF O MARKING DETAIL “B” (SEE TABLE) OFFONON OFF OFFON ON OFFO O O O LINE LOAD LOAD LINE LOAD LINE LOAD LINE LINE ROCKER HANDLE COLOR INDICATING COLOR ONI INDICATION “ON” Mounting/Indicator Code: J, K, L OFF O INDICATION “OFF” Mounting/Indicator Code: M, N, P, R MARKING DETAIL “C” (SEE TABLE) FIG. 2 FIG. 3 FIG. 6 LINE LOAD LOADLINE O OFFO N OO ON OFF LINE Notes: IEL, IELH and IELX circuit protectors are designed to meet 8mm creepage clearance requirements for installation Category 111, Pollution Degree 3, Case A as measured in IEC 664. Intended for use in equipment to comply with IEC 950, 601.

www.sensata.com Page 18 Copyright © 2023 Sensata Technologies, Inc. Type IAL: One handle per unit IUL: One handle per unit *IEL: One handle per unit IALH: One handle per pole IULH: One handle per pole *IELH: One handle per pole IALN: One handle per unit panel seal *IULN: One handle per unit panel seal IALZX: One handle per unit, rocker, integral mounting IULZX: One handle per unit, rocker, integral mounting ***IELZX: One handle per unit, rocker, integral mounting * IDL: One handle per unit UL 1500 * IDLH: One handle per pole UL 1500 * IML: One handle per unit mid trip indication * IMLH: One handle per pole mid trip indication IALBX: One handle per unit, rocker, accidental-off protection IULBX: One handle per unit, rocker, accidental-off protection *IELBX: One handle per unit, rocker, accidental-off protection **IMLBX: One handle per unit, mid trip indication, rocker, accidental-off protection Terminal Standard screw terminal, no designation required K: Stud terminals B: Bullet terminals Poles 1: Single pole 11: Two pole 111: Three pole 1111: Four pole* *Not available in toggle seal handle type. Consult factory for 5 and 6 pole IEL part number. Internal Configuration -0: Switch only (50, 70 or 100 amp switch) -1: Series -1REC4: Series with auxiliary switch* .110 quick connect -1REC5: Series with auxiliary switch* .187 quick connect -1REG4: Series with auxiliary switch* .110 quick connect -1RS4: Series with alarm switch, electrical trip, .110 quick connect terminals -1RLS4: Series with alarm switch, electrical trip, .110 quick connect terminals (mid-trip only) -1RS5: Series with alarm switch, electrical trip, .187 quick connect terminals -3: Shunt -4: Relay (not available in IEL/IELX) Frequency & Delay SW: Switch only -41: 400Hz short delay -42: 400Hz long delay -43: 400Hz motor start -49: 400Hz 150% instant trip -51: DC short delay -52: DC long delay -53: DC motor start -59: DC 125% instant trip -61: 50/60Hz short delay -62: 50/60Hz long delay -63: 50/60Hz motor start -64: 50/60Hz short delay -65: 50/60Hz long delay -66: 50/60Hz motor start -69: 50/60Hz 125% instant trip -71: DC/60Hz short delay -72: DC/60Hz long delay -73: DC/60Hz motor start -79: DC/60 Hz 135% instant trip IAL/IUL/IEL ORDERING OPTIONS Example: IEL1-1REC4-61-20.0-01-V IEL 1 - 1REC4 - 61 - 20.0 - 01 - V

www.sensata.com Page 19 Copyright © 2023 Sensata Technologies, Inc. Rated Current Use three numbers to print required current value between .100 ampsminimum and 100 amps maximum Optional Standard hardware. No designation required. -A: Metric thread mounting inserts and terminals -B: Standard Barrier -C: 277V (50/60Hz only) (See note 3) -D: 240/415V (50/60Hz only) -E: 277V/480V (50/60Hz only) (See note 4) -G: Handle guard, (available in ZX, BX and snap-in versions only) -K: 1/4 - 20 stud (M6 stud when -A option is selected) (<=70A requires -K, if >70A do not use -K) -L: Handle lock -M: Handle in opposite pole -P: Snap-in face plate adapter -U: 120/240V 50/60Hz -X: Handle guard with no actuation feature (BX rocker only) -1: Silver 5/16” (.312”) bullet Notes: 1. One or more descriptions may be used as required. 3. TUV approved at 250Vac 4. TUV approved at 415Vac Handle Color and Marking Selection IAL, IUL, IEL, IALH, IULH, IELH - Toggle Handle -01 (STD): Black -11: Yellow -21: Red -91: White Marked* ON-OFF I-O Rocker Handle Color, Indicator Color and Marking Selection (See Notes) IALZX, IULZX, IELZX Rocker Handle (Single Rocker Color) Vertical Mounting Horizontal Mounting Rocker Handle Color Indicating Color Marking Color Indicates: On-Off I-O Fig.3 On-Off I-O Fig.6 Marking Detail Black N/A White N/A -03 -06 A Red N/A White N/A -23 -26 Grey N/A Black N/A -43 -46 Orange N/A Black N/A -53 -56 White N/A Black N/A -93 -96 IALZX, IULZX, IELZX Rocker Handle (Dual Rocker Color) Black White White On -A3 -A6 A Black Red White On -B3 -B6 Black Green White On -C3 -C6 Black White White Off -F3 -F6 Black Red White Off -G3 -G6 Black Green White Off -H3 -H6 Black White White On -J3 -J6 BBlack Red White On -K3 -K6 Black Green White On -L3 -L6 IALBX, IULBX, IELBX, LELBX Rocker Handle (Dual Rocker Color) Black White White Off -M3 -M6 CBlack Red Red Off -N3 -N6 Black Green Green Off -P3 -P6 Black Yellow Yellow Off -R3 -R6 A. Bezels of IALBX, IULBX, IELB, IELBX are black. B. Consult factory for other marking options.

www.sensata.com Page 20 Copyright © 2023 Sensata Technologies, Inc. Type LEL: One handle per unit LELH: One handle per pole LML: One handle per unit mid trip indication LMLH: One handle per pole mid trip indication LELZX: One handle per unit, rocker, integral mounting LMLZX: One handle per unit, rocker, mid-trip indication, integral mounting LELBX: One handle per unit, rocker, accidental-off protected LMLBX: One handle per unit, rocker, mid-trip indication, accidental-off protected Terminal Standard screw terminal, no designation required K: Stud terminals B: Bullet terminals Poles 1: Single pole 11: Two pole 111: Three pole Internal Configuration -1: Series -1REC4: Series with auxiliary switch .110 quick connect -1REC5: Series with auxiliary switch .187 quick connect -1REG4: Series with auxiliary switch (gold contacts) .110 quick connect -1RS4: Series with alarm switch, electrical trip, .110 quick connect -1RLS4: Series with alarm switch, electrical trip, .110 quick connect* * Used only with mid-trip. Frequency & Delay -51: DC short delay -52: DC long delay -53: DC motor start -59: DC 125% instant trip -61: 50/60Hz short delay -62: 50/60Hz long delay -63: 50/60Hz motor start -69: 50/60Hz 125% instant trip For addition of inertial delay, add an “F” to any delay numeral. *Not available above 100 amps. Rated Current Use three numbers to print (.050 or 1.50 or 100) Value between .050 amps and 100 amps. Optional -A: Metric thread mounting inserts and terminals -B: Standard Barrier -F: 240V 50/60Hz -G: Handle guard, (available in ZX, BX and snap-in versions only) -K: 1/4 - 20 stud (M6 stud when -A option is selected) (<=70A requires -K, if >70A do not use -K) -L: Handle lock -M: Handle in opposite pole -P: Snap-in face plate adapter -U: 120/240Vac, 5000 A.I.C., 70A max. 2 pole only with barrier (TUV 250Vac) -V: 125VDC -X: Handle guard with no actuate “off” feature (see detail C) -Z: “Z” Barrier -1: Silver 5/16” (.312”) bullet Notes: 1. One or more descriptions may be used as required. 2. When this decision is not used, decision 7 may be substituted and U.S. thread will be supplied. 3.If (M5 or M6) studs are required, use “A” only on an LELK. LEL Toggle Handle Color Selection -01: Black w/ white markings -11: Yellow w/ black markings -21: Red w/ white markings -91: White w/ black markings See alternate 7th Decision for ZX and BX Rocker Handles. LEL ORDERING OPTIONS Example: LEL1-1REC4-61-20.0-01-V LEL 1 - 1REC4 - 61 - 20.0 - 01 - V

www.sensata.com Page 21 Copyright © 2023 Sensata Technologies, Inc. Rocker Handle Color, Indicator Color and Marking Selection (See Notes) LELZX & LMLZX Rocker Handle (Single Rocker Color) Vertical Mounting Horizontal Mounting Rocker Handle Color Indicating Color Marking Color Indicates: On-Off I-O Fig.3 On-Off I-O Fig.6 Marking Detail Black N/A White N/A -03 -06 A Red N/A White N/A -23 -26 Grey N/A Black N/A -43 -46 Orange N/A Black N/A -53 -56 White N/A Black N/A -93 -96 LELZX & LMLZX Rocker Handle (Dual Rocker Color) Black White White On -A3 -A6 A Black Red White On -B3 -B6 Black Green White On -C3 -C6 Black White White Off -F3 -F6 Black Red White Off -G3 -G6 Black Green White Off -H3 -H6 Black White White On -J3 -J6 BBlack Red White On -K3 -K6 Black Green White On -L3 -L6 LELBX Rocker Handle (Dual Rocker Color) Black White White Off -M3 -M6 C Black Red Red Off -N3 -N6 Black Green Green Off -P3 -P6 Black Yellow Yellow Off -R3 -R6 Notes: A. Bezels of IALBX, IULBX, IELB, IELBX are black. B. Consult factory for other marking options. T = IEC and CCC Approved The shaded areas denote TUV approval options. This approval requires the addition of a T or V at the end of the part number. The suffix will be added to any part number formed entirely of shaded decisions. If non-shaded areas are selected, the unit will not be TUV approved, but other approvals still apply. C = CCC Approved The approval requires the addition of a C at the end of the part number. The unit will not be TUV Approved. INDICATION “OFF” Mounting/Indicator Code: M, N, P, R MARKING DETAIL “C” (SEE TABLE) FIG. 2 FIG. 3 FIG. 6 LINE LOAD LOADLINE O OFFO N OO ON OFF LINE LINE LINE ROCKER HANDLE COLOR INDICATING COLOR INDICATING COLOR ROCKER HANDLE COLOR INDICATION “ON” Mounting/Indicator Code: A, B, C LOAD LOAD LINE LOAD LOADLINE INDICATION “OFF” Mounting/Indicator Code: F, G, H LINELINE Area reserved for amperage marking. ON I ON I O OFF OFF O OFF ON ON OFF O OFF ON O OO ON OFF MARKING DETAIL “A” (SEE TABLE) OFF OFFO OLINE LOAD LINE LOAD LINE LOAD LINE MARKING DETAIL “B” (SEE TABLE) OFFONON OFFON ON O O LOAD LINE ROCKER HANDLE COLOR INDICATING COLOR ONI INDICATION “ON” Mounting/Indicator Code: J, K, L OFF O Notes: The LEL family of circuit breakers are designed to meet 8mm creepage and clearance requirements for installation Category 111, pollution degree 3, Case A as measured in IEC 664. Intended for use in equipment designed to comply with IEC 380, 435, 601.

www.sensata.com Page 22 Copyright © 2023 Sensata Technologies, Inc. Type CEL: One handle per unit, UL489A Listed CELH: One handle per pole, UL489A Listed CML: Single pole only, one handle per unit mid-trip construction, UL489A Listed CMLH: One handle per pole mid-trip construction, UL489A Listed CELZX: One handle per unit, rocker handle, UL489A Listed CMLZX: Single pole only, one handle per unit, rocker handle w/ RLS aux switch, mid-trip construction, UL489A Listed CELBX: One handle per unit, flat rocker handle, UL489A Listed CMLBX: Single pole only, one handle per unit, flat rocker handle w/ RLS aux switch, mid-trip construction, UL489A Listed Terminal Standard screw terminal, no designation required K: Stud terminals B: Bullet terminals Poles 1: Single pole 11: Two pole 111: Three pole Internal Configuration -1: Series -1REC4: Series with auxiliary switch .110 quick connect -1REC5: Series with auxiliary switch .187 quick connect -1RS4: Series with alarm switch, electrical trip, .110 quick connect -1RLS4: Series with alarm switch, electrical trip, .110 quick connect* * Only one auxiliary switch is normally supplied on two and three pole units switch is located in the right hand pole (viewed from terminal end). Note, aux switch followed by “R” indicates reverse mount option ** Not available for 125 amp single pole Frequency & Delay -51: DC short delay -52: DC long delay -53*: DC motor start -59: DC 125% instant trip For addition of inertial delay, add an “F” to any delay numeral. Example: -51F *Not available above 100 amps. Rated Current Use three numbers in build (.050 or 1.50 or 100). Required value between .050 amps minimum and 125 amps maximum. Optional -A: Metric thread mounting inserts and terminals -B: Barrier -G: Handle guard, (available in ZX, BX and snap-in versions only) -K: 1/4-20 Stud (M6 stud when metric option -A selected) 50A requires -K, >50A do not use -K -P: Snap-in face plate adapter -T: 80VDC, 10000AIC, (required over 50A) -V: 125VDC -1: Silver 5/16” (.312”) bullet Notes: 1. One or more descriptions may be used as required. 2. When this decision is not used, decision 7 may be substituted and U.S. thread will be supplied. LEL Toggle Handle Color Selection -01: Black w/ white markings -11: Yellow w/ black markings -21: Red w/ white markings -31: Blue w/ white markings -41: Green w/ white markings -61: Orange w/ black markings -91: White w/ black markings See alternate 7th Decision for ZX and BX Rocker Handles. CEL ORDERING OPTIONS Example: CEL1-1REC4-51-20.0-A-01-V CEL 1 - 1REC4 - 51 - 20.0 - A - 01 - V

www.sensata.com Page 23 Copyright © 2023 Sensata Technologies, Inc. Rocker Handle Color, Indicator Color and Marking Selection (See Notes) LELZX & LMLZX Rocker Handle (Single Rocker Color) Vertical Mounting Horizontal Mounting Rocker Handle Color Indicating Color Marking Color Indicates: On-Off I-O Fig.3 On-Off I-O Fig.6 Marking Detail Black N/A White N/A -03 -06 A Red N/A White N/A -23 -26 Grey N/A Black N/A -43 -46 Orange N/A Black N/A -53 -56 White N/A Black N/A -93 -96 LELZX & LMLZX Rocker Handle (Dual Rocker Color) Black White White On -A3 -A6 A Black Red White On -B3 -B6 Black Green White On -C3 -C6 Black White White Off -F3 -F6 Black Red White Off -G3 -G6 Black Green White Off -H3 -H6 Black White White On -J3 -J6 BBlack Red White On -K3 -K6 Black Green White On -L3 -L6 LELBX Rocker Handle (Dual Rocker Color) Black White White Off -M3 -M6 C Black Red Red Off -N3 -N6 Black Green Green Off -P3 -P6 Black Yellow Yellow Off -R3 -R6 Notes: A. Bezels of IALBX, IULBX, IELB, IELBX are black. B. Consult factory for other marking options. V, T =TUV and CCC Approved The shaded areas denote TUV approval options. This approval requires the addition of a T or V at the end of the part number. The suffix will be added to any part number formed entirely of shaded decisions. If non-shaded areas are selected, the unit will not be TUV approved, but other approvals still apply. C = CCC Approved The approval requires the addition of a C at the end of the part number. The unit will not be TUV Approved. LINE LINE ROCKER HANDLE COLOR INDICATING COLOR INDICATING COLOR ROCKER HANDLE COLOR INDICATION “ON” Mounting/Indicator Code: A, B, C LOAD LOAD LINE LOAD LOADLINE INDICATION “OFF” Mounting/Indicator Code: F, G, H LINELINE Area reserved for amperage marking. ON I ON I O OFF OFF O OFFO N ON OFF O OFFO N O OO ON OFF MARKING DETAIL “A” (SEE TABLE) OFF OFFO OLINE LOAD LINE LOAD LINE LOAD LINE MARKING DETAIL “B” (SEE TABLE) OFFONON OFFON ON O O LOAD LINE ROCKER HANDLE COLOR INDICATING COLOR ON I INDICATION “ON” Mounting/Indicator Code: J, K, L OFF O INDICATION “OFF” Mounting/Indicator Code: M, N, P, R MARKING DETAIL “C” (SEE TABLE) FIG. 2 FIG. 3 FIG. 6 LINE LOAD LOADLINE O OFFO N OO ON OFF LINE

www.sensata.com Page 24 Copyright © 2023 Sensata Technologies, Inc. Type with Stud Terminals LELPK: One handle per unit LMLPK: One handle per unit, mid-trip LELZXPK: One ZX rocker handle per unit (integral mounting) LMLZXPK: One ZX rocker handle per unit, mid-trip (integral mounting) LELBXPK: One BX rocker handle per unit (integral mounting) LMLBXPK: One BX rocker handle per unit, mid-trip (integral mounting) LELHPK: One handle per pole LMLHPK: One handle per pole, mid-trip 1. One toggle handle per unit on 125A to 150A units (2-parallel pole) 2. 175A to 200A (3-parallel pole) requires handle in each pole, “H” selection Poles 11: Two pole (up to 150 amps) 111: Three pole (160 to 200 amps) Internal Configuration -1: Series -1REC4: Series with auxiliary switch .110 quick connect -1REG4: Series, aux switch (gold contacts) .110 quick connect -1RLS4: Series with alarm aux switch .110 quick connect, mid-trip only -1RLSG4: Series, alarm aux switch (gold contacts), .110 quick connect, mid-trip only -1RS4: Series with alarm aux switch .110 quick connect -1REC5: Series with aux switch .187 quick connect -1RLS5: Series with alarm aux switch .187 quick connect, mid-trip only -1RS4: Series with alarm aux switch .187 quick connect -1RS5: Series with alarm aux switch .187 quick connect, mid-trip Frequency & Delay -51: DC 125% short delay (125 to 150 amp) DC 135% short delay (160 to 200 amp) -52: DC 125% long delay (125 to 150 amp) DC 135% long delay (160 to 200 amp) -59: DC 125% instant trip (125 to 150 amp) DC 135% instant trip (160 to 200 amp) For addition of intertial delay, add an “F” to any delay option. Example: - 59 becomes -59F Rated Current Additional ratings available. Optional -A: Metric thread mounting inserts and terminals -G: Snap-in mounting plate adapter with handle guard (ZX, BX & snap-in only) -X: Handle guard with no actuate off feature (BX only, no mid-trip) -P: Snap-in face plate adapter Notes: 1. One or more descriptions may be used as required. 2. When this decision is not used, decision 7 may be substituted and U.S. thread will be supplied. LEL Toggle Handle Color Selection -01: Black w/ white markings -11: Yellow w/ black markings -21: Red w/ white markings -91: White w/ black markings See LEL alternative 7th decision for ZX & BX rocker handles V, T = TUV and CCC Approved The shaded areas denote TUV approval options. This approval requires the addition of a T or V at the end of the part number. The suffix will be added to any part number formed entirely of shaded decisions. If non-shaded areas are selected, the unit will not be TUV approved, but other approvals still apply. C = CCC Approved The approval requires the addition of a C at the end of the part number. The unit will not be TUV Approved. LELHP ORDERING OPTIONS Example : LELHPK11-1REC4-51-125.-A- 01-V LELHPK 11 - 1REC4 - 51 - 125. - A - 01 - V

www.sensata.com Page 25 Copyright © 2023 Sensata Technologies, Inc. Type with Stud Terminals CELP: One toggle handle per unit CELHP: One toggle handle per pole CMLHP: One toggle handle per pole, mid-trip construction CELZXP: One rocker handle per unit CELBXP: One flat rocker handle per unit 1. One toggle handle per unit is available only on 101A to 200A (two parallel pole construction) 2. 201A to 250A (three parallel pole constructions) require handles in each pole, “H” version first decision 3. Unit supplied with bullet terminals will not have buss bar installed, unless requested, buss bar supplied standard to 150A only. 4. One handle per unit is available for 100A to 200A (two parallel pole constructions) and 201A to 250A (three pole constructions) (ZX & BX versions only) 5. 400 amps available with toggle handes only Poles 11: Two pole (up to 150 amps) 111: Three pole (160 to 200 amps) 1111: Four pole (400 amps) Internal Configuration -0: Switch only -1: Series -1REC4: Series with auxiliary switch .110 quick connect -1RLS4*: Series with alarm aux switch .110 quick connect, mid-trip only -1RS4*: Series with alarm aux switch .110 quick connect -1REC5: Series with aux switch .187 quick connect -1RLS5*: Series with alarm aux switch .187 quick connect, mid-trip only -1RS4: Series with alarm aux switch .187 quick connect 1. Only one auxiliary switch is normally supplied on two and three pole units. Switch is located in the right hand pole (viewed from terminal end panel mount position). 2. When more than one aux. switch is required, change the 1 (of the 1REC4) to 2 or 3. If switches are mixed, then use “2R” or 3R”. * Not available at 400 amps. Frequency & Delay -51: DC 125% short delay (101 to 150 amp) DC 135% short delay (160 to 250 amp) -52: DC 125% long delay (101 to 150 amp) DC 135% long delay (160 to 250 amp) -53: DC 125% motor start (101 to 150 amp) DC 135% motor start (160 to 250 amp) -59: DC 125% instant trip (101 to 150 amp) DC 135% instant trip (160 to 250 amp) Rated Current Additional ratings available. Optional -A: Metric thread mounting inserts and terminals -B: Barrier -G: Snap-in mounting plate adapter with handle guard (ZX, BX & snap-in only) -X: Handle guard with no actuate off feature (BX only, no mid-trip) -1: Silver 5/16” (.312”) bullet Notes: 1. One or more descriptions may be used as required. 2. When this decision is not used, decision 7 may be substituted and U.S. thread will be supplied. LEL Toggle Handle Color Selection -01: Black w/ white markings -11: Yellow w/ black markings -21: Red w/ white markings -91: White w/ black markings See LEL alternative 7th decision for ZX & BX rocker handles T = TUV and CCC Approved The shaded areas denote TUV approval options. This approval requires the addition of a T or V at the end of the part number. The suffix will be added to any part number formed entirely of shaded decisions. If non-shaded areas are selected, the unit will not be TUV approved, but other approvals still apply. CELHP ORDERING OPTIONS Example : CELHPK11-1REC4-51-125.-A-01-V CELHPK 11 - 1REC4 - 51 - 125. - A - 01 - V

www.sensata.com Page 26 Copyright © 2023 Sensata Technologies, Inc. AGENCY APPROVALS & CERTIFICATIONS AGENCY APPROVALS - IAL/IUL/IEL Voltage Frequency (Hz) Phase Min. Poles TC OL UL/CSA VDE (amps) UL 1077 & CSA (AIC) VDE (AIC) 65 DC - 1 1 1 .02-100 .10-70 U2, 7500 4000 65(4) DC - 1 1 1 .02-100 - U2, 3000 - 65(4) DC - 1 1 1 .02-50 - U2, 5000 -

65 DC - 2** 2 1 101-150 - U2, 7500 -

80 DC - 1 1 1 .02-70 .10-50 U2, 7500 4000 80 DC - 1 1 1 70.1-100 - U2, 5000 -

80 DC - 2 1 1 101-150 - U1, 10000 -

80 DC - 3 1 0 251-300 - U2, 7500 -

125 DC - 2 1 0 .02-100 - U2, 5000 - 250 DC - 2+ 1 0 .02-50 - U1, 5000 - 300 DC - 3++ 1 0 .02-50 .10-50 U2, 1000 5000 125 50/60 1 1 1 0 .02-70 - U2, 5000 - 125 50/60 1 1 1 1 .02-100 - U1, 3000 - 125(5) 50/60 1 1 1 1 .02-100 - U3, 1500 - 120/240 50/60 1 2 2 1 .02-100 - U1, 2000 - 125/250(5) 50/60 1 2 only 1 1 .02-100 - U3, 1500 - 240 50/60 1&3 1 1 0 .02-70 - U1, 2000 - 240 50/60 3 2 1 1 .02-100 - U2, 2000 - 250 50/60 3 1 1 1 .02-50 .10-100 U2, 3000 2000 250 50/60 3 1 1 1 .02-50 .10-100 C2, 5000(1) 2000 250 50/60 1 1 1 1 .02-50 .10-100 C2, 5000(2) 2000 250 50/60 3 2 1 0 .02-80 .10-100 U1, 1000 2000 250 50/60 3 1 1 0 .02-60 .10-100 U1, 5000 2000 250(5) 50/60 3 3 only 1 1 .02-100 - U3, 2000 - 277 50/60 1 1 1 1 .02-50 - U2, 2000 - 277 50/60 1&3 1 2 1 .02-50 - C2, 5000(1) - 240/415 50/60 3 2 2 0 .02-50 .10-50 U2, 2000 2000 240/415 50/60 1 2 2 0 .02-50 .10-50 C2, 5000(1) 2000 277/480 50/60 3 2 2 1 .02-30 - U2, 2000 - 277/480 50/60 3 2 2 1 .02-50 - U2, 1200 - 277/480 50/60 3 2 1 1 .02-30 - C2, 5000(3) - 277480 50/60 1&3 2 1 0 .02-50 - C2, 5000(3) - 480 50/60 1&3 2 1 1 .02-30 - C2, 5000(3) - 480 50/60 3 2 1 0 .02-50 - C2, 5000(3) - 250 400 1&3 1 2 1 .02-50 - U2, 1500 - AGENCY APPROVALS - CEL/CELP (COMMUNICATIONS) Voltage Frequency (Hz) Phase Min. Poles UL/CSA VDE (amps) UL 489A (AIC) VDE (AIC) 65 DC - 1 .05-50 - 7500 -

65 DC - 2** 101-150 - 50000 -

80 DC - 1 .05-100 - 50000 -

80 DC - 2** 101-200 - 10000 -

80 DC - 3** 201-250 - 10000 -

125 DC - 1 .05-70 - 5000 - 80 DC - 1 15.1-125 - 10000 - AGENCY APPROVALS - IULD (DUST SEALED) Voltage Frequency (Hz) Phase Min. Poles TC OL UL/CSA VDE (amps) UL 1077 & CSA (AIC) VDE (AIC) 250 50/60 1&3 1 1 1 .02-100 - C2, 5000(3) - 277 50/60 1 1 1 1 .02-30 - C2, 5000(3) - Notes: ** Paralleled poles; + 2 poles in series; ++ 3 poles in series; (1) With 125 A max. series fuse; (2) Series combination with 209 or 229 series (100 A max.); (3) With 100 A max. series fuse; (4) With blocked vent construction (5) Non-standard construction. “Fit for further use” approval AGENCY APPROVALS - LEL/LELHP Voltage Frequency (Hz) Phase Min. Poles UL/CSA VDE (amps) UL489 (AIC) VDE (AIC) 65 DC - 1 .05-50 - 7500 -

65 DC - 2** 101-150 - 50 000 -

65 DC - 3** 175-200 - 50000 -

80 DC - 1 .05-100 .10-100 10000 2000 80 DC - 1 .05-100 - 50000 -

80 DC - 2** 125-150 125-150 10000 2000

80 DC - 3** 175-200 151-200 10000 2000

125 DC - 1 .05-70 .05-70 5000 3000 125/250 DC - 2 .05-50 - 5000 - 125 50/60 1&3 1 .05-40 - 10000 - 125 50/60 1&3 1 .05-50 .10-50 5000 2000 120/240 50/60 1 2 .05-60 .10-50 5000 2000 240 50/60 1&3 1 .05-20 - 5000 - AGENCY APPROVALS - CELHP

80 DC - 4 400 - 10000 AIC

(UL489A) AGENCY APPROVALS - IDL/IDLP (MARINE) Voltage Frequency (Hz) Phase Min. Poles TC OL UL/CSA VDE (amps) UL 1077 & CSA (AIC) VDE (AIC) 48 DC - 1 1 1 .02-100 - U1, 5000 -

48 DC - 2** 1 1 101-150 - U1, 5000 -

65 DC - 1 1 1 .02-60 - U1, 1000 - 80 DC - 1 1 1 .02-100 - U2, 1500 - 125 50/60 1 1 1 1 .02-100 - U 1, 1500 - 250 50/60 1 2 1 1 .02-100 - U2, 1500 - 250 50/60 1&3 1 1 1 .02-60 - U1, 1000 - AGENCY APPROVALS - IULQ (TAPPED COIL) Voltage Frequency (Hz) Phase Min. Poles TC OL UL/CSA VDE (amps) UL 1077 & CSA (AIC) VDE (AIC) 125/250 50/60 1 1 1 0 2/1-30/15 - C2, 5000(1) - General notes:

• All supplementary protectors are of the overcurrent (OC) type
• The family of protectors has been evaluated for end use application for use groups (UG) A, B, C and D
• The terminals (FW) are suitable for factory wiring only (0)
• The maximum voltage ratings for which the protectors have been tested are shown in the chart
• The current is the amperage range that the protectors have been tested
• The tripping current (TC) for all of the protectors is either either “1” (in the range of 125% to 135% of ampere rating) or “2” (more than 135% of ampere rating)
• The overload rating (OL) – designates whether the protector has been tested for general use or motor starting applications. 0 – tested at 1.5 times amp rating for general use 1 – tested at 6 times AC rating or 10 times DC rating for motor starting
• The short circuit current rating (SC) – The short circuit rating in amperes following a letter and number designating the test conditions and any calibration following the short circuit test is defined below: C – Indicates short circuit test was conducted with series overcurrent protection U – Indicates short circuit test was conducted without series overcurrent protection 1 – Indicates a recalibration was not conducted as part of the short circuit testing 2 – Indicates a recalibration was performed as part of the short circuit testing 3 – Indicates recalibration was performed along with the dielectric and voltage withstand for “Suitable for Further Use” rating

www.sensata.com CONTACT US Americas 508-236-2551 electrical-protection-sales@ sensata.com Europe, Middle East & Africa +31743578156 info-sse@list.sensata.com Asia Pacific sales.isasia@list.sensata.com China +86 (21) 2306 1500 Japan +81 (45) 277 7117 Korea +82 (31) 601 2004 India +91 (80) 67920890 Rest of Asia +886 (2) 27602006 ext 2808 Copyright © 2023 Sensata Technologies, Inc. Sensata Technologies, Inc. (“Sensata”) data sheets are solely intended to assist designers (“Buyers”) who are developing systems that incorporate Sensata products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, evaluation and judgment in designing Buyer’s systems and products. Sensata data sheets have been created using standard laboratory conditions and engineering practices. Sensata has not conducted any testing other than that specifically described in the published documentation for a particular data sheet. Sensata may make corrections, enhancements, improvements and other changes to its data sheets or components without notice. Buyers are authorized to use Sensata data sheets with the Sensata component(s) identified in each particular data sheet. HOWEVER, NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER SENSATA INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY THIRD PARTY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT, IS GRANTED HEREIN. SENSATA DATA SHEETS ARE PROVIDED “AS IS”. SENSATA MAKES NO WARRANTIES OR REPRESENTATIONS WITH REGARD TO THE DATA SHEETS OR USE OF THE DATA SHEETS, EXPRESS, IMPLIED OR STATUTORY , INCLUDING ACCURACY OR COMPLETENESS. SENSATA DISCLAIMS ANY WARRANTY OF TITLE AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY , FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT, QUIET POSSESSION, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS WITH REGARD TO SENSATA DATA SHEETS OR USE THEREOF. All products are sold subject to Sensata’s terms and conditions of sale supplied at www.sensata.com SENSATA ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR THE DESIGN OF BUYERS’ PRODUCTS. BUYER ACKNOWLEDGES AND AGREES THAT IT IS SOLELY RESPONSIBLE FOR COMPLIANCE WITH ALL LEGAL, REGULATORY AND SAFETY-RELATED REQUIREMENTS CONCERNING ITS PRODUCTS, AND ANY USE OF SENSATA COMPONENTS IN ITS APPLICATIONS, NOTWITHSTANDING ANY APPLICATIONS-RELATED INFORMATION OR SUPPORT THAT MAY BE PROVIDED BY SENSATA. Mailing Address: Sensata Technologies, Inc., 529 Pleasant Street, Attleboro, MA 02703, USA. Rev. 10/26/2023 WARNINGS RISK OF MATERIAL DAMAGE AND HOT ENCLOSURE

• The product’s side panels may be hot, allow the product to cool before touching
• Follow proper mounting instructions including torque values
• Do not allow liquids or foreign objects to enter this product Failure to follow these instructions can result in serious injury, or equipment damage. HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
• Disconnect all power before installing or working with this equipment
• Verify all connections and replace all covers before turning on power Failure to follow these instructions can result in death or serious injury.