ZB12-4 EATON | Alldatasheet
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Technical content
Overload relay, ZB12, Ir= 2.4 - 4 A, 1 N/O, 1 N/C, Direct mounting, IP20 Part no. ZB12-4 Catalog No. 278438 Alternate Catalog No. XTOB004BC1 EL-Nummer (Norway) 4131833 Similar to illustration Delivery program Product range Overload relay ZB up to 150 A Product range Accessories Accessories Overload relays Frame size ZB12 Phase-failure sensitivity IEC/EN 60947, VDE 0660 Part 102 Description Test/off button Reset pushbutton manual/auto Trip-free release Mounting type Direct mounting Ir A 2.4 - 4 Contact sequence Auxiliary contacts N/O = Normally open 1 N/O N/C = Normally closed 1 N/C For use with DILM7, DILM9, DILM12, DILM15, DIULM7, DIULM9, DIULM12, SDAINLM12, SDAINLM16, SDAINLM22 DS7-34…SX004… Short-circuit protection Type “1” coordination gG/gL A 25 Type “2” coordination gG/gL A 16 Notes Overload release: tripping class 10 A short-circuit protective device: Observe the maximum permissible fuse of the contactor with direct device mounting. Suitable for protection of Ex e-motors. II(2)G [Ex d] [Ex e] [Ex px], II(2)D [Ex p] [Ex t] PTB 10 ATEX 3010 Observe manual MN03407005Z-DE/EN. Notes Fitted directly to the contactor
1 Contactor
Standards IEC/EN 60947, VDE 0660, UL, CSA Climatic proofing Damp heat, constant, to IEC 60068-2-78 Damp heat, cyclic, to IEC 60068-2-30 Ambient temperature Operating range to IEC/EN 60947 PTB: -5 °C - +55 °C 11/04/2022 Eaton 278438 ED2022 V93.0 EN 1 / 5
Open °C -25 - +55 Enclosed °C - 25 - 40 Temperature compensation Continuous Weight kg 0.142 Mechanical shock resistance g 10 Sinusoidal Shock duration 10 ms Degree of Protection IP20 Protection against direct contact when actuated from front (EN 50274) Finger and back-of-hand proof Altitude m Max. 2000 Main conducting paths Rated impulse withstand voltage Uimp V AC 6000 Overvoltage category/pollution degree III/3 Rated insulation voltage Ui V 690 Rated operational voltage Ue V AC 690 Safe isolation to EN 61140 Between auxiliary contacts and main contacts V AC 440 Between main circuits V AC 440 Temperatur compensation residual error > 40 ºC ≦ 0.25 %/K Current heat loss (3 conductors) Lower value of the setting range W 2.2 Maximum setting W 6 Terminal capacities mm2 Solid mm2 1 x (1 - 6) 2 x (1 - 6) Flexible with ferrule mm2 1 x (1 - 4) 2 x (1 - 4) Solid or stranded AWG 18 - 8 Terminal screw M4 Tightening torque Nm 1.8 Stripping length mm 10 Tools Pozidriv screwdriver Size 2 Standard screwdriver mm 1 x 6 Auxiliary and control circuits Rated impulse withstand voltage Uimp V 4000 Overvoltage category/pollution degree III/3 Terminal capacities mm2 Solid mm2 1 x (0.75 - 4) 2 x (0.75 - 4) Flexible with ferrule mm2 1 x (0.75 - 2.5) 2 x (0.75 - 2.5) Solid or stranded AWG 2 x (18 - 14) Terminal screw M3.5 Tightening torque Nm 1.2 Stripping length mm 8 Tools Pozidriv screwdriver Size 2 Standard screwdriver mm 1 x 6 Rated insulation voltage Ui V AC 500 Rated operational voltage Ue V AC 500 Safe isolation to EN 61140 between the auxiliary contacts V AC 240 Conventional thermal current Ith A 6 Rated operational current Ie A AC-15 Make contact 11/04/2022 Eaton 278438 ED2022 V93.0 EN 2 / 5
120 V Ie A 1.5 220 V 230 V 240 V Ie A 1.5 380 V 400 V 415 V Ie A 0.5 500 V Ie A 0.5 Break contact 120 V Ie A 1.5 220 V 230 V 240 V Ie A 1.5 380 V 400 V 415 V Ie A 0.9 500 V Ie A 0.8 DC L/R ≦ 15 ms Switch-on and switch-off conditions based on DC-13, time constant as specified. 24 V Ie A 0.9 60 V Ie A 0.75 110 V Ie A 0.4 220 V Ie A 0.2 Short-circuit rating without welding max. fuse A gG/gL 6 Notes Notes Ambient air temperature: Operating range to IEC/EN 60947, PTB: -5°C to +55°C Main circuits terminal capacity solid and flexible conductors with ferrules: When using 2 conductors use equal cross-sections. Rating data for approved types Auxiliary contacts Pilot Duty AC operated B300 at opposite polarity B600 at same polarity DC operated R300 Short Circuit Current Rating SCCR
600 V High Fault
SCCR (fuse) kA 100 max. Fuse A 6 Class J/CC Design verification as per IEC/EN 61439 Technical data for design verification Rated operational current for specified heat dissipation In A 4 Heat dissipation per pole, current-dependent Pvid W 2 Equipment heat dissipation, current-dependent Pvid W 6 Static heat dissipation, non-current-dependent Pvs W 0 Heat dissipation capacity Pdiss W 0 Operating ambient temperature min. °C -25 Operating ambient temperature max. °C 55 IEC/EN 61439 design verification
10.2 Strength of materials and parts
10.2.2 Corrosion resistance Meets the product standard's requirements. 10.2.3.1 Verification of thermal stability of enclosures Meets the product standard's requirements. 10.2.3.2 Verification of resistance of insulating materials to normal heat Meets the product standard's requirements.
10.2.3.3 Verification of resistance of insulating materials to abnormal heat
and fire due to internal electric effects Meets the product standard's requirements. 10.2.4 Resistance to ultra-violet (UV) radiation Meets the product standard's requirements. 10.2.5 Lifting Does not apply, since the entire switchgear needs to be evaluated. 10.2.6 Mechanical impact Does not apply, since the entire switchgear needs to be evaluated. 10.2.7 Inscriptions Meets the product standard's requirements. 10.3 Degree of protection of ASSEMBLIES Does not apply, since the entire switchgear needs to be evaluated. 10.4 Clearances and creepage distances Meets the product standard's requirements. 10.5 Protection against electric shock Does not apply, since the entire switchgear needs to be evaluated. 10.6 Incorporation of switching devices and components Does not apply, since the entire switchgear needs to be evaluated. 10.7 Internal electrical circuits and connections Is the panel builder's responsibility. 11/04/2022 Eaton 278438 ED2022 V93.0 EN 3 / 5
10.8 Connections for external conductors Is the panel builder's responsibility.
10.9 Insulation properties
10.9.2 Power-frequency electric strength Is the panel builder's responsibility. 10.9.3 Impulse withstand voltage Is the panel builder's responsibility. 10.9.4 Testing of enclosures made of insulating material Is the panel builder's responsibility. 10.10 Temperature rise The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices. 10.11 Short-circuit rating Is the panel builder's responsibility. The specifications for the switchgear must be observed. 10.12 Electromagnetic compatibility Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function The device meets the requirements, provided the information in the instruction
leaflet (IL) is observed. Technical data ETIM 8.0 Low-voltage industrial components (EG000017) / Thermal overload relay (EC000106) Electric engineering, automation, process control engineering / Low-voltage switch technology / Overload protection device / Thermal overload relay (ecl@ss10.0.1-27-37-15-01 [AKF075014]) Adjustable current range A 2.4 - 4 Max. rated operation voltage Ue V 690 Mounting method Direct attachment Type of electrical connection of main circuit Screw connection Number of auxiliary contacts as normally closed contact 1 Number of auxiliary contacts as normally open contact 1 Number of auxiliary contacts as change-over contact 0 Release class CLASS 10 A Reset function input No Reset function automatic Yes Reset function push-button Yes Approvals Product Standards IEC/EN 60947-4-1; UL 60947-4-1; CSA - C22.2 No. 60947-4-1-14; CE marking UL File No. E29184 UL Category Control No. NKCR CSA File No. 12528 CSA Class No. 3211-03 North America Certification UL listed, CSA certified Specially designed for North America No Suitable for Branch circuits Max. Voltage Rating 600 V AC Degree of Protection IEC: IP20, UL/CSA Type: - Characteristics These tripping characteristics are mean values of the spreads at 20 °C ambient air temperature in a cold state. Tripping time depends on response current. When the devices are at operational temperature the tripping time of the overload relay falls to approx. 25 % of the read off value. 1: Minimum level, 3-phase 2: Maximum level, 3-phase 3: Minimum marker, 2-phase 4: Highest marker, 2-phase Dimensions ① OFF ② Reset/ON Additional product information (links) IL03407015Z (AWA2300-2114) Overload relay IL03407015Z (AWA2300-2114) Overload relay https://es-assets.eaton.com/DOCUMENTATION/AWA_INSTRUCTIONS/IL03407015Z2021_11.pdf IL03407195Z Sealable shroud 11/04/2022 Eaton 278438 ED2022 V93.0 EN 4 / 5
IL03407195Z Sealable shroud https://es-assets.eaton.com/DOCUMENTATION/AWA_INSTRUCTIONS/IL03407195Z2021_10.pdf MN03407004Z (AWB2300-1527D/GB) ZB12/ relays, overload monitoring of Ex e motors - Deutsch / English https://es-assets.eaton.com/DOCUMENTATION/AWB_MANUALS/MN03407004Z_DE_EN.pdf 11/04/2022 Eaton Industries GmbH http://www.eaton.eu © 07/2022 by Eaton Industries GmbH Eaton 278438 ED2022 V93.0 EN