The switching relay is an electrically-controlled switch: a small current on the coil opens or closes a higher-power circuit, used on control boards to activate motors, solenoid valves or other loads.

How to choose the right part: check the coil voltage (e.g. 24V AC/DC, 220/230V AC), the contact current (e.g. 5A, 16A) and the number of pins — all values must match the original, a relay with different specifications may not work or could damage the board.

Compatibility: available Finder relays (various series: 55.13, 56.44, 40.61, 40.31, 40.52, 62.23), Omron (mod. LY4, for Omas boards) and Klixon (mod. 4CR-650, for Omas).

For other electronic spare parts go back to Electronic Spare Parts; for higher-power components see Contactors.

Frequently asked questions

What's the difference between a relay and a contactor?
The relay handles lower currents (signals, small loads); the contactor is rated for higher currents, typically for direct motor starting.

How do I find my relay's coil voltage?
It's printed on the body of the original relay (e.g. "24V AC", "230VA"): it's the most reliable reference for replacement.