How to control a single phase motor from two points

Today you will learn about "how to control a single phase submersible pump motor" or how to control single phase motor from two points. In this type of controlling we used the two magnetic contactors and two double pole mcb circuit breakers (Miniature Circuit Breakers), two normal open push button switches, and 2 normal open push button switches.

How to control a single phase motor from two places


The motor will control from two places, in which the first place supply will come from the Main kWh Energy meter, and for 2nd place, the supply comes from kWh check meter or 2nd energy meter.
Here I explain the complete controlling and wiring diagram step by step. In this type of connection a single phase motor used under two householders in which one owner of houses and the 2nd are people who take the 2nd house on rent.

So the motor can be on/off from both places. For that, we can do connections as have shown in the below diagram.

how to control single phase motor from two points


In the above how to control single phase motor from two points diagram the first energy meter supply goes to the first MCB circuit breaker and kWh check meter. From the kWh check meter, the supply goes to the 2nd double pole MCB circuit breaker.

From the first double pole mcb circuit breaker, the supply goes to the first contactor and to contactor push button switches or on/off the motor. But here we do an interlock system. In which if the motor starts from the first contactor then no one can start it from second place (contactor) at the same time. And when the motor switches off from first place then the 2nd person can on/off the motor from second place. But if the motor starts from the second place then no one can on/off the motor from the first place.

The same connection is done with the same contactor, the supply comes from the double pole mcb circuit breaker and connected to the contactor. And from there the supply goes to the on/off motor push button swathes. (The start button is shown with green color and red button shown as motor OFF button).

The motor output supply is taken from the output terminals of the contactor and from there the supply goes to the motor as shown in the above diagram. Both output supplies are connected together in which the output neutral wire from the first contactor is connected with 2nd contactor output neutral wire and then the neutral wire goes to the motor. And same did with the Phase (Line) wire.  If you want to learn about the single phase submersible pump starter wiring diagram the read the below guide...

Read Also:
Single Phase Submersible Pump Starter Wiring Diagram

I hope this single phase motor controlling from the two places diagram (how to control single phase motor from two points) help you. If you have any questions then you can ask me in the below commenting box.
Note that this diagram is just from information and learning. Don’t try this type of connection in your home himself, and for doing this type of connection call a professional. Stay tuned with us and take care…..

Sikandar Haidar

Electricalonline4u.com is a hub of electrical and electronics tutorials and easy diagrams.

2 Comments

  1. Merhaba sn Haidar.
    Elektrik kablolama şemaları nasıl oluşturuyorsunuz. Hangi programı kullanıyorsunu? Yardımcı olabilir misiniz.? Teşekkürler.

    ReplyDelete
  2. Will we not use overload relay in this case or any protection device??

    ReplyDelete
Previous Post Next Post