Solid State Relay (SSR)
A solid-state relay (SSR) is an electronic switching device in which a small control signal controls a larger load current or voltage. It consists of a sensor which responds to an appropriate input (control signal), a solid-state electronic switching device which switches power to the load circuitry, and some coupling mechanism to enable the control signal to activate this switch without mechanical parts. The relay may be designed to switch either AC or DC to the load. It serves the same function as an electromechanical relay, but has no moving parts.
CELDUC manufactures an extensive range of solid state power relays up to 125 Amperes, single or three phase, input/output interface modules and a range of upgraded solid state relays designed for improved control of certain loads when it comes to power, speed, starting or rotation direction control.