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  A solid-state relay (SSR) is an electronic switching device that switches on or off when a small external voltage is applied across its control terminals. SSRs consist 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 a 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.

  Packaged solid-state relays use power semiconductor devices such as thyristors and transistors, to switch currents up to around a hundred amperes. Solid-state relays have fast switching speeds compared with electromechanical relays, and have no physical contacts to wear out. Application of solid-state relays must consider their lower ability to withstand momentary overload, compared with electromechanical contacts, and their higher "on" state resistance.

BLACK SSR 10DA

BLACK SSR 10DA

CG Solid State Relay 10A DA Single Phase DC To AC Heat Sink For 3V 12V 32VDC Load 24V 48V 220V 480VAC SSR-10DA

BLACK SSR 25DA

BLACK SSR 25DA

CG Solid State Relay 25A DA Single Phase DC To AC Heat Sink For 3V 12V 32VDC Load 24V 48V 220V 480VAC SSR-10DA 25DA 40DA

BLACK SSR 40DA

BLACK SSR 40DA

CG Solid State Relay 40A DA Single Phase DC To AC Heat Sink For 3V 12V 32VDC Load 24V 48V 220V 480VAC SSR-40DA