SSR 40 DD Solid State Relay DC to DC (3-32V Input, 3-75V Output) with Radiator, 40A

Choose the right Solid State Relay

Choose the right product:

Solid State Relay (SSR)

Step 1:Select the correct control mode

DA:DC-AC

AA:AC-AC

DD:DC-DC

Step 2: Choose the Correct Current

For resistive loads:SSR current = 2 x operating current of the load (heating equipment, etc.)

For inductive loads:SSR current = 6 x operating current of the load (motor, etc.)

For capacitive loads:SSR current = 10 X the operating current of the load (capacitance, etc.)

For example:

There is a water pump 2200W, 220V, then the Rated voltage is 10A, because the motor is Inductive load, so you need to buy a 10A X 6=60A SSR.