3 Phase Reversing Contactor Wiring Diagram

Single phase reversing contactor wiring diagram. How to change rotation of a three phase electric motor. The forward reverse motor control is used in a system where forward and backward or upward and downward movement in the operation is needed.

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In the above one phase motor wiring i first connect a 2 pole circuit breaker and after that i connect the supply to motor starter and then i do cont actor coil wiring with normally close push button switch and normally open push button switch and in last i do connection between capacitor.

3 phase reversing contactor wiring diagram. More electrical tips and diagrams www aboutelectricity co uk like subscribe and don t skip the ads. Phase lines sizes 0 l and 1p single phase sizes and 1 direct current 6 pilot light red black sizes 0 1 3 phase with pilot light 8. We use 2 magnetic contactors as forward reverse switch. Why 3 phase ac instead of single phase.

It uses two contactors two auxiliary contact blocks an overload relay a mechanical interlock two normally open start pushbuttons a normally closed stop pushbutton and a power supply with a fuse. In the diagram i connect the incoming three phase supply l1 l2 l3 to the mccb circuit breaker molded case circuit breaker. In above contactor wiring diagram i shown 3 phase 440 volts 4 wire system. Full voltage reversing 3 phase motors.

This diagram is for 3 phase reversing motor control with 24 vdc control voltage. 3 phase or 2 phase 3 wire for 2 phase 3 wire l2 and t2 are common sgl. Input modules and reversing contactors 42 type s ac magnetic starters 43 50 class 8536 43 50 8538 and 8539 45 49 1 phase size 00 to 3 43 2 phase and 3 phase size 00 to 5 44 3 phase size 6 45 3 phase size 7 46 3 phase additions and special features 47 50. I take one phase and neutral wire for mc coil which 220v but always wire your contactor coil regarding coil voltage current requirements.

Here connect the 3 phase supply to the over load relay same as input to run the motor in forward direction but in case of the reverse contactor we have to reverse one phase for the reversing of direction of motor as shown in the diagram. Here i showed the forward reverse wiring diagram. Reversing contactor wiring diagram wiring diagram is a simplified satisfactory pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the skill and signal friends amid the devices. Forward and reverse motor conrol.

Forward reverse motor control diagram for three phase motor for three phase motor forward reverse control circuit.