Latching Relays

The Functional Devices Latching Relay Series comes prepackaged in their own NEMA 1 plastic enclosure with a 1/2” mounting nipple, LED indicator and pre-wired for a money-saving installation that is easy and quick. These relays are activated by pulse commands from a controller or momentary switch closure. The relay contacts are mechanically latched in the closed position and the load will remain on in the event of a control panel failure period. If power is completely lost the contacts will remain in their last state and the load will activate upon the return of normal power or emergency power.