What is a mechanically held contactor. Step 1 of 3. Contactors And Relays Electrical Academia We need at least 10 more requests to produce the solution. . Another type of overload motor is the electronic type which continuously watches the motor current whereas the thermal overload relay shuts off the motor depending on the rise of temperatureheat of the strip. Bi metal relay - two metals welded together with different expansion qualities thermal relay - operates on heat going through a wire to determine current flow and contacts will open on overload molten alloy relay - ratchet wheel soldered to conductor. And a coil to create the magnetic field. Each of the components does operate a little differently. A contactor is a relay that is used for switching power. Contactors can be field mounted. It is considered to be a special type of relay. The Relay detects the abnormal condition by continuously monitorin...
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