3 Phase Reversing Contactor Wiring Diagram. W2 cj2 ui vi wi w2 cj2 ui vi wi a cow voltage y high voltage z t4 til t12 10 til t4 t5. 1 phase 2 phase 4 wire 3 phase line markings l1 l2 l1 l3.
The three phase supply shown in the diagram l1 l2 l3 which is connected to the mccb circuit breaker and after that the supply goes to the magnetic contactor and from the contactor the supply goes to the thermal overload relay and from the thermal overload relay the supply goes to 3 phase motor. From the 2nd thermal overload relay normal close contacts the supply goes to both contactors coil contacts terminals. Wiring diagram book a1 15 b1 b2 16 18 b3 a2 b1 b3 15 supply voltage 16 18 l m h 2 levels b2 l1 f u 1 460 v f u 2.
W2 cj2 ui vi wi w2 cj2 ui vi wi a cow voltage y high voltage z t4 til t12 10 til t4 t5.
The forward reverse motor control is used in a system where forward and backward or upward and downward movement in the operation is needed. The neutral wire first goes to the thermal overload relay nc contacts and to the light indicator. Have to be connected to three phase supply via contactor or breaker arrangement. A three pole breaker with an appropriate current rating is used for connecting a three phase motor.
