Contactor holding circuit with Push Button Switch

Hey, in this article we are going to see the contactor holding circuit with NO and NC push button switches. This contactor holding circuit is mostly used in the motor controller or motor starter circuit such as DOL Starter, Star Delta Starter, etc. The main objective of this holding circuit is to keep the contactor On condition even we release the pressure from the NO push button switch.

Why holding circuit required with Contactor?

We know that the push-button switch used for the motor starter has a construction as that, it only makes or breaks contact when we press the switch, once we release the pressure from the switch, its contact will come to its old position.
So when we use a NO pushbutton with a contactor, the contactor will be turned on only when we press the switch. So we need to make an external connection that will keep on the contactor until we press the NC pushbutton switch.

EasyPact TVS contactor 3P(3 NO) - AC-3 -= 440 V 6A - 220 V AC coil
LC1E0601M5

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