Solid State Relays

  • Description:

A solid-state relay (SSR) is an electronic switching device in which a small control Single Phase Solid State Relaysignal 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.


MJB Controls stock SSR's with the following options.

MS-1DA Single Phase SSR DC Control AC Load)

MS-1AA Single Phase SSR(AC Control AC Load)

MS-DD Series Single Phase SSR(DC control DC Load)


  • Features

All models have the same universal standard size
Operation indicator(red LED) enables monitoring operation
Protective cover for greater safety
DC or AC input
Fast response and robust
Zero cross function
No noise during the operation
Chassis mount
Built-in RC Snubber

Current rating from 10 to 120 amps

Output Voltage up to 1200Vac

Heatsinks available for all models


Information Sheets