So Why Doesn’t My Contactor Work?

[Seven-Delta-FortyOne]

Direct replacement. Here is what was there:



Here is what I installed:




Good power coming in. Good power to the timer. Good power to the line side of the relay.

When I set the timer for on, I hear a faint click, but the Contactor never closes.

I tried switching the DC input on the A1 and A2 inputs, just in case, and still the same.

I put a meter on the output of the relay, and didn’t get any voltage. I believe I should have 12 or 24v. I believe the relay is bad. Anything else I’m missing?

And why doesn’t ABB contactors have a way to close the Contactor manually?

 

[AC\DC]

Could you post pictures where I could read the nameplate and in my ignorance what do you mean manual on the Abb’s? You can press those in manually

 

[Master Nater]

and one showing your test leads on the coil, as well as the voltage they are being fed.

 

[tortuga]

I tried switching the DC input on the A1 and A2 inputs, just in case, and still the same.

DC input is that a typeo? Looks like a 120 VAC system.

 

[Seven-Delta-FortyOne]

So I started thinking about this and I wondered if maybe it isn’t a LV DC input. Apparently the last one was.

The info shipped with the Contactor is less than worthless, so I actually don’t know if it is line or low voltage input.

The white uh, button, for lack of a better word, in the center of the contactor does nothing. Usually you can manually close it with the button.

and one showing your test leads on the coil, as well as the voltage they are being fed.

Voltage is 208Y, little hot but nothing crazy. Phase to ground is 123-124, P-P 214 and 215.

I just bypassed the contactor for the time being so the parking lot lighting will on over night and it works fine.

 

[AC\DC]

DC input is that a typeo? Looks like a 120 VAC system.

Ya was wondering about the original contractor information

 

[brycenesbitt]

How broken is the old one, and what could you learn putting it back
in temporarily, and measuring the control voltage / current ?