53 PT HEAV Y DUTY RELAY FEATURES APPLICATION l A/C Blower l A/C Compressor l Engine Cooling Fan l Radiator Fan l Starter Motors l Rear Window Defogger l Battery Disconnection l High performance l Heav y duty up to 120Amps l 9.5mm Flat Contact Terminals l Suitable Couplers available l Dual Contacts TECHNICAL DATA FOR CONTACT SIDE : Model : 53SO-PT Contact Configuration : 1A 1A Contact Material : Silver Nickel Silver Nickel / Tungsten* Areas of Application 53TO-PT RESISTIVE / INDUCTIVE/CAPACITIVE LOADS 0 Contact Rating at 23 C - 12VDC (Res.) : 70A 100A Electrical Life Operations Min. : 1 x 105 1 x 105 Mechanical Life Operations Min. : 1 x 106 1 x 106 Contact Voltage drop at 10 A (Min) : 30mV 30mV Ma ximum Switching Current @ 12.8 VDC For 3 Sec. : 150A 350A *Dual contact with Tungsten pre-contact and Silver Nicker Main Contact GENERAL DATA FOR COIL SIDE Nominal Coil Power : 1.92W (Approx) Operating Power : 1.1W (Approx) Operate Time** : 15 milli Seconds Release Time** : 15 milli Seconds CIRCUIT DIAGRAM ** At nominal voltage without coil suppression (excluding bounce) OPERATING CONDITIONS Ambient Temperature : -250C to +850C Ma ximum Temperature : 1550C Dielectric Strength : 500VRMS Insulation Resistance : 100 Meg Ohms Min. At 500 VDC, 250C RH 50 Vibration Resistance (without change In the switching state>10µS) : 10-50Hz 4.4g (min) Shock Resistance (without change in the switching state>10µS) : 30g, 8mS 30 85 86 87 53TO-PT 30 85 86 87 53SO-PT HOW TO ORDER - 12 X X - PT X Product Series Specialities If any 0-Without Bracket 1-With Bracket 9.5mm power Terminals Contact Arrangement 1A - 1 Form A 0 - without parallel Resistor 1 - with parallel Resistor Nominal Coil Voltage (Refer Coil Data) S - Single Contact T - Twin Contact Coil Resistance without parallel resistor in Ohms ±10% 1A Pick-up Voltage VDC Version T - **Pick-up Voltage VDC Version D 0 Nominal Voltage VDC 53 COIL DATA 06 4.8 5.2 20 09 6.8 7.2 55 12 9.0 9.6 75 18 13.5 14.4 165 24 18.0 19.2 250 48 36.0 38.4 1100 **Lower pick-up Voltages available on request DIMENSIONS Relay without Bracket Relay with Bracket 28.0 25.5 28.0 Ø5.0 33.0 28.0 19.0 8.0 28.0 11.5 15.00 2x0.8 46.0 2x9.5 4x0.8 2x6.3 25.5 8.4 8.4 85 30 87 11.5 15.00 86 4x0.8 2x9.5 2x0.8 2x6.3 10.35 17.9 MECHANICAL DATA COVER RETENTION Pull : 20KgF Push : 20KgF AVAILABLE ON REQUEST l High Temperature winding wire l Special coil resistance & pick-up TERMINAL STRENGTH Pull : 10KgF Push : 10KgF l Resistor / Diode across coil l For other custom solutions consult factory