120V well pump switch wiring

[Arky217]

A typical well pump pressure switch has two sets of contacts for breaking both lines of a 240V supply.

But what if you have a 120V pump. Should you break both the line and the neutral with the switch or should you break only the line (and why) ?

Arky

 

[techman]

You can break the neutral, no issues. It will have no advantage. You could also just wire the hot leg on the switch.

paul

 

[jaotguy]

either way works and both ways are safe .....

 

[TnAndy]

I'd submit you're better off only using one side for the hot, and wire the neutral solid. That way, when you wear out the contact points on the one hot, you can use the other side of the switch.....but then I'm cheap.

 

[grsthegreat]

As an electrical contractor i can say either way is approved.

 

[RSKY]

I'd submit you're better off only using one side for the hot, and wire the neutral solid. That way, when you wear out the contact points on the one hot, you can use the other side of the switch.....but then I'm cheap.

freedfe

 

[Industrial Toys]

I agree with the saving one set.

Also, why have an extra set of contacts in the circuit to possibly fail? No good reason for it.

 

[kcflhrc]

A light switch breaks the hot side, or it should, why would this be any different?

 

[buickanddeere]

If wired to use both contacts the wear is reduced compared to using only one contact. My question of why use a 120V well pump when 240V is possible .