740-12-1C-1SCNIL OENINDIA | Alldatasheet

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Technical content

FEATURES

l 6.3mm Flat Terminals l Current rating up to 40A l Suitable Couplers available l Optional Sealing APPLICATION l Horn Control l Starter Motors l Defogger l Radiator Fan l A/C Controls l Security Systems Contact Configuration : 1A/1C 1A/1C Contact Material : Silver Nickel Silver Nickel / Silver Tin Oxide* Contact Rating at 23 C - 12VDC (Res.) NO : 30 40 NC : 20 30 5 5 Electrical Life Operations Min. : 2 x 10 2 x 10 6 6 Mechanical Life Operations Min. : 1 x 10 1 x 10 Contact Voltage Drop at 10 A (Min) : 50mV 50mV Maximum Switching Current : 120A 150A@ 12.8 VDC For 3 Sec. TECHNICAL DATA FOR CONTACT SIDE : Areas of Application RESISTIVE / INDUCTIVE/HEAD LAMP/CAPACITIVE LOADS GENERAL DATA FOR COIL SIDE Nominal Coil Power : 1.6W (Approx) Operating Power : 1.8W (Approx) Operate Time : 15 milli Seconds Release Time : 15 milli Seconds ** At nominal voltage without coil suppression (excluding bounce) 0 0 Ambient Temperature : -30 C to +85 C Maximum Temperature : 155 C Dielectric Strength : 500VRMS Insulation Resistance : 100 Meg. Ohms Min. At 500 VDC, 0

25 C RH 50

Vibration Resistance (without change : 10-2000Hz 4.4g in the switching state>10µS) Shock Resistance (without change : 30g, 8mS in the switching state>10µS) OPERATING CONDITIONS CIRCUIT DIAGRAM 30 85 86 87a87 * parallel resistor or diode optional

1 Form C

1 Form A

*Under introduction Model : 74 74-SC

12 8 1.2 85 24 17 2.4 305 *Lower pick-up Voltages available on request COIL DATA MECHANICAL DATA COVER RETENTION Pull : 20KgF Push : 20KgF TERMINAL STRENGTH Pull : 10KgF Push : 10KgF l High temperature winding wire l Special Contact arrangements l Special coil resistance & pick-up l Resistor / Diode across coil l For other custom solutions consult factory 74 1 - 12 - 1C - X XX X - XX Product Series 0-Without Bracket 1-With Bracket Contact Arrangement 1C -1 Form C 1A - 1 Form A Nominal Voltage (Refer Coil Data) Specialities if any Nominal Voltage VDC Coil Resistance Ohms (± 10%) *Pick-up Voltage VDC (Max) Drop-out Voltage VDC (Min) Nil - No coil suppression 1 - with resistor across coil 2 - with diode across coil SC - 1 Form C (40 / 30 Amp) Contact SA - 1 Form A (40 Amp) Contact Nil - unsealed (Standard) E - Sealed Use this Section only for relays with 40/30A contact relays AVAILABLE ON REQUEST DIMENSIONS 8.0 19.0Ø5.042.5 27.0 4x0.8 4x6.30 11.5 2x0.8 27.0 25.0 33.0 Relay without Bracket Relay with Bracket 27.0 4x0.8 4x6.30 25.0 11.5 2x0.8 27.0 8.4 8.4 17.9 10.35

DATA ON VARIOUS TESTS CONDUCTED FOR OPERATING CONDITIONS TEST TEST CONDITION RESULT Relay kept at 100 C Thermal cycling Shock Voltage Dropping Impact No change in operating parameters of the relay. Corrosion Resistance No damage to relay parts Jump Start Withstood successfully Coil Voltage : 14 VDC Load given : 25 A @ 12 VDC Duration : 5 Sec. On, 5 Sec. OFF No. of operation : 50000 The above test repeated at - 30 C for 50000 operations Relay subjected to :- 0 0 -30 C to + 100 C in 2 Hrs. with coil ON +100 C for 2 Hrs. with coil ON 0 0 +100 C to - 30 C in 2 Hrs. with 1 Hrs. Coil ON & 1 Hrs. Coil OFF -30 C for two Hrs. with Coil ON No. of Cycles : 3 Relay is subjected to :- Max. Voltage : 100VDC Shock Wave : Exponential Damping vibration Time : 500 micro Sec. Period : 30 Sec. Test Time : 10 Hrs. Relays dropped from a height of 1 Meter to a concrete floor

24 VDC for 1 minute conducting nominal current

Water Resistance test No water ingression inside the relay Horizontal Plane:23rev. / Min. Water Pressure:0.03 Mpa Test time:10 Min *Typical values for relays with 12 VDC coil. For higher severity please consult factory OPTIONAL SPECIAL CIRCUITRY 30 85 86 87 87

1 FORM A (2 PINS 87)

1 FORM U (under introduction)

Relays successfully completed 100000 operations at given load Continuous Energisation test at Extreme temperature Conditions All operating parameters within the specifications after test After the test, all operating parameters of the relay are within specification. 5% Sodium Chloride solution applied to relay for 48 Hrs.