For three phase motor we always wire contactor, this post help you in contactor wiring and i hope after this post you will be able to wire a 3 phase motor, i also published a post about 3 phase motor wiring with magnetic contactor and thermal overload relay, but today post and contactor wiring diagram is too simple and easy to learn. 2 days ago i wired 380 to 440 volts contactor for a 3 phase motor and save these images of contactor in PC. Its is important to share with you these images but you can not learn clearly with out a diagram.
In the above image i wire a contactor and thermal overload relay for a three phase motor, with NC and NO push button.
Note that NC means Normal Close and NO means Normal Open, in clear words NC push button is a button which is normally close circuit and NO push button is a button which is normally open electric circuit.
NC push button we use for switching off the motor and NO push button for Switching On the electric circuit or 3 phase motor.
I know these images help you very mush in contactor wiring or contactor instillation but you can not learn completely with out a diagram. So in below contactor wiring diagram i shown a contactor with a thearmal overlaod relay, 3 phase motor and NC, NO push button switches with complete wiring method.
In the above diagram i shown complete method of contactor wiring and 3 phase motor wiring and wiring installation method. Note that always connect the earth wire to the electric motor body. In the above contactor wiring diagram i did not shown any type of step down transformer or neutral wire for magnetic contactor coil because i use a 440 volts contactor in above circuit diagram, however you can learn some more form below links.
Also Read.
How to Wire a 3 Phase Motor With Contactor and Overload Relay.
How To Wire a Contactor With Overload relay
In the above image i wire a contactor and thermal overload relay for a three phase motor, with NC and NO push button.
Note that NC means Normal Close and NO means Normal Open, in clear words NC push button is a button which is normally close circuit and NO push button is a button which is normally open electric circuit.
NC push button we use for switching off the motor and NO push button for Switching On the electric circuit or 3 phase motor.
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| C ontactor buttons |
I know these images help you very mush in contactor wiring or contactor instillation but you can not learn completely with out a diagram. So in below contactor wiring diagram i shown a contactor with a thearmal overlaod relay, 3 phase motor and NC, NO push button switches with complete wiring method.
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| Power wiring diagram |
In the above diagram i shown complete method of contactor wiring and 3 phase motor wiring and wiring installation method. Note that always connect the earth wire to the electric motor body. In the above contactor wiring diagram i did not shown any type of step down transformer or neutral wire for magnetic contactor coil because i use a 440 volts contactor in above circuit diagram, however you can learn some more form below links.
Also Read.
How to Wire a 3 Phase Motor With Contactor and Overload Relay.
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