Solid State Relays for Electric and Glass Firing kilns. A solid-state relay (SSR) is an electronic switching device that switches on or off when an external voltage (AC or DC) is applied across its control terminals. It serves the same function as an electromechanical relay, but has no moving parts and therefore results in a longer operational lifetime. Please call Olympic Kilns at 800.241.4400 to order with a kiln or parts purchase.



