Solid State Relay Module SSR-10DA SSR-25DA SSR-40DA SSR-60DA SSR-80DA SSR-100DA 10A 25A 40A 60A 3-32VDC 24-380VAC High Quality

Calculate the current size

Device current.Coefficient = selection current

Selection current X coefficient = equipment current

(Coefficient: The resistive load is 2 times, and the inductive load is 6 times.)

Resistive loads: electric heating, incandescent lamps, electricity….etc.

Inductive load: motor, transformer, capacitor, solenoid valve, air conditioner, with inductance

The photo….etc.

Example 1: A heater with a rated current of 15A, and the heater is a resistive load, then the formula: 15AX2=30A, you must choose to purchase a 40A solid state relay.

Example 2:-A motor with a rated current of 15A, and the motor is an inductive load, then the formula: 15AX 6=90A, you must choose to purchase a 100A solid state relay.