Control Relays Control Relays It is a device through which contacts in one circuit are operated by an alteration in conditions in the same circuit or in associated circuits. Categories: control relay, SwitchGear Electricals Tag: control relay Enquire Now Related products Air Circuit Breakers Read more HRC Fuse Link Read more Miniature Circuit Breaker MCB Read more Motor Protection Circuit Breakers (MPCB’s) Read more