What's the difference between a form C relay and a Solid-State Relay?

A Solid state relay is defined as a relay that uses voltage to change the state of the relay. Apply 12 or 24 VDC to the relay control input and the output relay changes state

Solid state relay is defined as a relay that uses voltage to change the state of the relay. Apply 12 or 24 VDC to the relay control input and the output relay changes state

A form C relay is like our accessory switches. It has an output with three wires, COM, NC, and NO

A form C relay is like our accessory switches. It has an output with three wires, COM, NC, and NO

The form C relay usually has something internal triggering the relay so you are not sending voltage to control inputs to change the output state of the relay.

A solid-state relay uses voltage to change the state of the relay. Applying 12 or 24 VDC to the relay control input will trigger it to change state.

The form C relay usually has something internal triggering the relay so you are not sending voltage to control inputs to change the output state of the relay.


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