S4EB-L2-24V

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Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/ S ASCTB207E 201202-T 4-GAP BALANCED ARMATURE MECHANISM HOW IT WORKS (single side stable type) 2a2b/3a1b/4a 4A polarized power relays S RELAYS

FEATURES

1. Compact with high sensitivity The high-efficiency polarized electromagnetic circuits of the 4-gap balanced armature and our exclusive spring alignment method achieves, with high-sensitivity in a small package, a relay that can be directly controlled by a driver chip. RoHS compliant 2. Strong resistance to vibration and shock Use of 4G-BA technology realizes strong resistance to vibration and shock. 3. High reliability and long life Our application of 4G-BA technology, along with almost perfectly complete twin contact, ensures minimal contact bounce and high reliability. 4. Ability to provide wide-ranging control Use of 4G-BA technology with gold- clad silver alloy contacts in a twin contact structure enables control across a broad range from microcurrents of 100 µA 100 mV DC to 4 A 250 V AC. 5. Latching types available With 4G-BA technology, as well as single side stable types, convenient 2 coil latching types for circuit memory applications are also available. 6. Wide variety of contact formations available The compact size of the 4G-BA mechanism enables the provision of many kinds of package, including 2a2b, 3a1b, and 4a. These meet your needs across a broad range of applications. 7. Low thermal electromotive force relay High sensitivity (low power consumption) is realized by 4G-BA technology. Separation of the coil and spring sections has resulted in a relay with extremely low levels of thermal electromotive force (approx. 0.3 µV). 8. DIL terminal array Deployed to fit a 2.54 mm .100 inch grid, the terminals are presented in DIL arrays which match the printed circuit board terminal patterns commonly in international use. 9. Relays that push the boundaries of relay efficiency High-density S relays take you close to the limits of relay efficiency. 10. Sockets are available. TYPICAL APPLICATIONS Telecommunications equipment, data processing equipment, facsimiles, alarm equipment, measuring equipment. 1. Armature mechanism has excellent resistance to vibration and shock The armature structure enables free rotation around the armature center of gravity. Because the mass is maintained in balance at the fulcrum of the axis of rotation, large rotational forces do not occur even if acceleration is applied along any vector. The mechanism has proven to have excellent resistance to vibration and shock. All our S relays are based on this balanced armature mechanism, which is able to further provide many other characteristics. 2. High sensitivity and reliability provided by 4-gap balanced armature mechanism As a (polarized) balanced armature, the S relay armature itself has two permanent magnets. Presenting four interfaces, the armature has a 4-gap structure. As a result, the rotational axis at either end of the armature is symmetrical and, in an energized into a polarized state, the twin magnetic armature interfaces are subject to repulsion on one side and attraction on the other. This mechanism, exclusive to Panasonic Corporation, provides a highly efficient polarized magnetic circuit structure that is both highly sensitive and has a small form factor. Moreover, suitability for provision with many types of contact array and other advantages promise to make it possible to provide many of the various characteristics that are coming to be demanded of relays. 1) When current is passed through the coil, the yoke becomes magnetic and polarized. 2) At either pole of the armature, repulsion on one side and attraction on the other side is caused by the interaction of the poles and the permanent magnets of the armature. 3) At this time, opening and closing operates owing to the action of the simultaneously moulded balanced armature mechanism, so that when the force of the contact breaker spring closes the contact on one side, on the other side, the balanced armature opens the contact (2a2b). Axis Repulsion Attraction Permanent magnet Residual plate Attraction Repulsion N S N S N S

Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/ S ASCTB207E 201202-T

ORDERING INFORMATION

Standard packing: Carton: 50 pcs.; Case: 500 pcs. * For sockets, see page 55. RATING 1. Coil data 1) Single side stable Contact arrangement Nominal coil voltage Single side stable 2 coil latching Part No. Part No.

2 Form A 2 Form B

12V DC S2EB-12V S2EB-L2-12V 24V DC S2EB-24V S2EB-L2-24V 48V DC S2EB-48V S2EB-L2-48V

3 Form A 1 Form B

12V DC S3EB-12V S3EB-L2-12V 24V DC S3EB-24V S3EB-L2-24V 48V DC S3EB-48V S3EB-L2-48V

4 Form A

12V DC S4EB-12V S4EB-L2-12V 24V DC S4EB-24V S4EB-L2-24V 48V DC S4EB-48V S4EB-L2-48V Type Nominal coil voltage Pick-up voltage (at 20°C 68°F) Drop-out voltage (at 20°C 68°F) Nominal operating current [±10%] (at 20°C 68°F) Coil resistance [±10%] (at 20°C 68°F) Nominal operating power Coil inductance Max. applied voltage (at 40°C 104°F) Standard 3V DC 70%V or less of nominal voltage (Initial) 10%V or more of nominal voltage (Initial) 66.7mA 45 Ω 200mW Approx. 23mH 5.5V DC 5V DC 38.5mA 130 Ω 192mW Approx. 65mH 9.0V DC 6V DC 33.3mA 180 Ω 200mW Approx. 93mH 11.0V DC 12V DC 16.7mA 720 Ω 200mW Approx. 370mH 22.0V DC 24V DC 8.4mA 2,850 Ω 202mW Approx. 1,427mH 44.0V DC 48V DC 5.6mA 8,500 Ω 271mW Approx. 3,410mH 75.0V DC Nominal coil voltage (DC) 3, 5, 6, 12, 24, 48 V Contact arrangement 2: 2 Form A 2 Form B 3: 3 Form A 1 Form B 4: 4 Form A SE B Operating function Nil: L2: Single side stable 1 coil latching* 2 coil latching Notes: 1. *1 coil latching type are manufactured by lot upon receipt of order. 2. Certified by UL and CSA

Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/ S ASCTB207E 201202-T 2) 2 coil latching 2. Specifications Notes: *1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load. *2. The upper limit of the ambient temperature is the maximum temperature that can satisfy the coil temperature rise value. Refer to Usage, transport and storage conditions in NOTES. Type Nominal coil voltage Set voltage (at 20°C 68°F) Reset voltage (at 20°C 68°F) Nominal operating current [±10%] (at 20°C 68°F) Coil resistance [±10%] (at 20°C 68°F) Nominal operating power (at 20°C 68°F) Coil inductance Max. applied voltage (at 40°C 104°F)Set coil Reset coil Set coil Reset coil Set coil Reset coil Set coil Reset coil Standard 3V DC 70%V or less of nominal voltage (Initial) 70%V or less of nominal voltage (Initial) 66.7mA 66.7mA 45 Ω 45Ω 200mW 200mW Approx. 10mH Approx. 10mH 5.5V DC 5V DC 38.5mA 38.5mA 130 Ω 130Ω 192mW 192mW Approx. 31mH Approx. 31mH 9.0V DC 6V DC 33.7mA 33.7mA 180 Ω 180Ω 200mW 200mW Approx. 40mH Approx. 40mH 11.0V DC 12V DC 16.7mA 16.7mA 720 Ω 720Ω 200mW 200mW Approx. 170mH Approx. 170mH 22.0V DC 24V DC 8.4mA 8.4mA 2,850 Ω 2,850Ω 202mW 202mW Approx. 680mH Approx. 680mH 44.0V DC 48V DC 7.4mA 7.4mA 6,500 Ω 6,500Ω 355mW 355mW Approx. 1,250mH Approx. 1,250mH 65.0V DC Characteristics Item Specifications Contact Arrangement 2 Form A 2 Form B, 3 Form A 1 Form B, 4 Form A Contact resistance (Initial) Max. 50 m Ω (By voltage drop 6 V DC 1A) Electrostatic capacitance (initial) Approx. 3pF Contact material Au clad Ag alloy (Cd free) Thermal electromotive force (at nominal coil voltage) (initial) Approx. 3µV Rating Nominal switching capacity (resistive load) 4 A 250 V AC, 3 A 30 V DC Max. switching power (resistive load) 1,000 VA, 90 W Max. switching voltage 250 V AC, 48 V DC (30 to 48 V DC at less than 0.5 A) Max. switching current 4 A (AC), 3 A (DC) Minimum operating power 100 mW (Single side stable, 2 coil latching) Nominal operating power 200 mW (Single side stable, 2 coil latching) Min. switching capacity (Reference value)* 1 100µA 100 m V DC Electrical characteristics Insulation resistance (Initial) Min. 10,000MΩ (at 500V DC) Measurement at same location as “Breakdown voltage” section. Breakdown voltage (Initial) Between open contacts 750 Vrms for 1min. (Detection current: 10mA.) Between contact sets 1,000 Vrms for 1min. (Detection current: 10mA.) Between contact and coil 1,500 Vrms for 1min. (Detection current: 10mA.) Temperature rise (coil) (at 20°C 68°F) Max. 35°C (By resistive method, nominal coil voltage applied to the coil; contact carrying current: 4A.) Operate time [Set time] (at 20°C 68°F) Max. 15 ms [15 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.) Release time [Reset time] (at 20°C 68°F) Max. 10 ms [15 ms] (Nominal coil voltage applied to the coil, excluding contact bounce time.) (without diode) Mechanical characteristics Shock resistance Functional Min. 490 m/s 2 (Half-wave pulse of sine wave: 11 ms; detection time: 10µs.) Destructive Min. 980 m/s 2 (Half-wave pulse of sine wave: 6 ms.) Vibration resistance Functional 10 to 55 Hz at double amplitude of 3 mm (Detection time: 10 µs.) Destructive 10 to 55 Hz at double amplitude of 4 mm Expected life Mechanical Min. 10 8 (at 50 cps) Electrical Min. 10 5 (4 A 250 V AC), Min. 2×105 (3 A 30 V DC) (at 20 times/min.) Conditions Conditions for operation, transport and storage*2 Ambient temperature: –55°C to +65°C –67°F to +149°F Humidity: 5 to 85% R.H. (Not freezing and condensing at low temperature) Max. operating speed 20 times/min. for maximum load, 50 cps for low-level load (1 mA 1 V DC) Unit weight Approx. 8 g .28 oz

Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/ S ASCTB207E 201202-T REFERENCE DATA 1. Maximum switching power 2. Life curve 3. Contact reliability Condition: 1V DC, 1mA Detection level 10 Ω Tasted Sample: S4EB-24V, 10pcs 100 1,000 0.1 1 10 Contact current, A Contact voltage, V DC resistive load AC resistive load 1,000 500 100 012345 Contact current, A Life, ×104

125 V AC

(cosϕ = 1.0)

250 V AC

(cosϕ = 1.0) 99.9 99.0 95.0 0.1 1.0 10.0 0.2 0.5 1.0 2.0 5.0 10.0 30.0 50.0 70.0 No. of operations, ×107 m = 1.6 µ: 79 million time σ: 51 million time 95% reliability limit: 14.6 million times (weibul probability paper) 4.-(1) Coil temperature rise Tested Sample: S4EB-24V, 4 Form A 4.-(2) Coil temperature rise Tested Sample: S4EB-24V, 4 Form A 5. Operate and release time (Single side stable type) Tested Sample: S4EB-24V, 10pcs 100 Coil operating power, W Temperature rise, °C 100 12 3456 Coil operating power, 0.2 W Contact current, A Temperature rise, °C Min. Max. Min. Max. Min. Max. 80 100 120 140 Coil applied voltage, %V Operate/release time, ms Release time (with diode) Operate time Release time 6. Influence of adjacent mounting 51 0–30 +30 51 0–30 +30 are energized Rate of change, % Rate of change, % Single side stable 2 coil latching Drop-out voltage Pick-up voltage Pick-up voltage Inter-relay distance, mm Inter-relay distance, mm Note: When installing an S-relay near another, and there is no effect from an external magnetic field, be sure to leave at least 10 mm .394 inch between relays in order to achieve the performance listed in the catalog. 7. Thermal electromotive force 200 2468 10 12 100 Minute NR-H NF relay S relay Thermal electromotive force, µV 8. Effect from an external magnetic field 50 100–30 +30 50 100–30 +30 Rate of change, % Rate of change, % G G Pick-up voltage Pick-up voltage Drop-out voltage Single side stable 2 coil latching φ 50 100–30 –30 +30 50 100 +30 Rate of change, % Rate of change, % G G Pick-up voltage Pick-up voltage Drop-out voltage Single side stable 2 coil latching φ

Panasonic Corporation Automation Controls Business Unit industrial.panasonic.com/ac/e/ S ASCTB207E 201202-T DIMENSIONS (mm inch) SAFETY STANDARDS NOTES For Cautions for Use. UL/C-UL (Recognized) CSA (Certified) File No. Contact rating File No. Contact rating E43028 4A 250V AC, 1/20HP 125V AC (FLA1.5A) 1/20HP 250V AC (FLA0.75A), 3A 30V DC LR26550 etc. 4A 250V AC, 1/20HP 125V AC, 1/20HP 250V AC 3A 30V DC The CAD data of the products with a CAD Data mark can be downloaded from: http://industrial.panasonic.com/ac/e/ External dimensions General tolerance: ±0.3 ±.012 PC board pattern (Copper-side view) Tolerance: ±0.1 ±.004 10±0.5 127.62123456 12 11 10 9 8 7 0.4 1.4 1.0 5.080.5 0.5 7.62 28±0.5 12 .118 .394±0.02 .472.300 .039 .157 .016 .055 .039 .200.020 .020 .300 1.102±0.02 .472 2.54 2.54 12-1.3 dia. .100 .100 .047-.051 dia. Schematic (Bottom view) Single side stable (Deenergized position) 2 coil latching (Reset condition) 2a2b 3a1b 123456 12 11 10 9 8 7 123456 12 11 10 9 8 7 123456 12 11 10 9 8 7 123456 12 11 10 9 8 7 123456 12 11 10 9 8 7 123456 12 11 10 9 8 7 CAD Data 1. Based on regulations regarding insulation distance, there is a restriction on same-channel load connections between terminals No. 2, 3 and 4, 5, as well as between No. 8, 9 and 10, 11. See the figure below for an example. 2. Please note that when this relay (1 Form A 1 Form B types) operates and releases, contacts a and b may go ON at the same time. 2 53 10 9 811 523 9 811 10 Between 2, 3 and 4, 5: different channels, therefore not possible Between 10, 11 and 8, 9: different channels, therefore not possible Between 2, 3 and 4, 5: same channels, therefore possible Between 10, 11 and 8, 9: same channels, therefore possible No good Good