O/E/l 74 AUTOMOTIVE MINI POWER RELAY FEATURES High performance Օ 6.3mm flat terminais Current rating up to 40A Օ Suitable couplers available Optional sealing APPLICATION Օ Horn control Starter motors Օ Defogger Radiator fan Օ A/C Controls Security Systems TECHNICAL DATA FOR CONTACT SIDE : Model Areas of Application Contact Configuration Contact Material Contact Rating at 23°C-12VDC (Res.)NO NC Electrical Life Opթrations Min. Mechanical Life Oprations Min. Contact Voltage Drop at 20 A (Max) Maximum Switching Current @ 12.8 VDC For 3 Sec. 74 74-SC Rsistive / Inductive/head Lamp/capacitive Loads 1 Form A, 1 NO / 1 Form C, 1 CO 1 Form A, 1 NO / 1 Form C, 1 CO Silver Nickel Silver Nickel / Silver Tin Oxide 30 40 20 30 1x105 1x105 1x106 1x10e 200mV 200mV 120A 150A GENERAL DATA FOR COIL SIDE CIRCUIT DIAGRAM Nominal Coil Power Operating Power Operate Time** Release Time** 1.6W (Approx) 0.75W (Approx) 15 milli Seconds 15 milli Seconds 1 Form A 1 Form C ' At nominal voltage without coil suppression (excluding bounce) 30 85 86 87 30 85 86 87 87a OPERATING CONDITIONS Ambient Temp驩rature Maximum Temprature Dielectric Strength Insulation Rsistance -30°C to +85°C 155°C 500VRMS 1 Form U 1 Form A (2X87) 100 Meg. Ohms Min. At 500 VDC, 25°C RH 50 10-2000Hz 4.4g Vibration R驩sistance (without change in the switching state>10uS) Shock Rsistance (without change in the switching state>10uS) Weight 30g, 8mS 45 gms 30 85 86 87 87b 30 85 86 87 87a * Parallel rsister or diode optional 1 Form B also available Imlin Limitai 4e We make electronics work .

HOW TO ORDER COIL DATA 74 J Product Sries 12 1A XXX - XXX T Customer speciality if any CD O) (0 Sa E o CD O) CO ^ II CD Ut m II CD 鄄 o o c S; co o Vacant - Unsealed E-Sealed V O le 0 - Without Bracket 1 - With Bracket Vacant - AgNi 0 - AgSn02 Nominal Coil Voltage I (Refer coil data) 12-12V 24-24V (Vacant for 30A/20A relays thro NO/NC) 12 8.0 1.2 85 SA - 40A NO Contact SC - 40/30A thro NO/NC contact 24 17.0 2.4 305 SAB-40A NO relay with braided wire SCB-40/30A NO/NC relay with braided wire STB-40A relay NO (2x87) with braided wire 48 32.0 4.8 1200 Contact Configuration 1A -1 Form A 1B -1 Form...

DATA ON VARIOUS TESTS CONDUCTED FOR OPERATING CONDITIONS TEST TEST CONDITION RESULT Electrical life Relaykeptat100uC Coil Voltage : 14 VDC Load given : 25 A @ 12 VDC Duration : 5 Sec. On, 5 Sec. OFF No. of opration : 50000 Relays successfully completed 100000 oprations at given load Relay subjected to : -30°C to + 100°C in 2 Hrs. with coil ON Thermal cycling +100 C for 2 Hrs. with coil ON +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...