Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
There are two kinds of motor overcurrent protection devices, motor protection relays that are only sensing the overcurrent and must be used in combination with a contactor, and motor circuit breakers. The latter can be also used for manual motor start/stop control.