pump wiring

chris75

Kinda what I was thinking.

konafixits

OK guys, I can do a lot of things, but when it comes to 220v as you can see, I'm clueless. Yes, I am pulling two legs off two single pole breakers ganged together. I must add that I'm coming off a subpanel that is about 120' from my main panel. The connection between the panels is 8/3 solid wire coming off of a 40 amp ganged breaker. At the subpanel I split the two hots one to each side. From the subpanel I have 12/3 wire going to my pump about 30' away. So pulling two 110v wires from my panel will not give me 220v? I tried pulling the hot from the subpanel first one wire from each side with two separate breakers, then from one side with a ganged breaker. Same result, Nothing.

chris75

Your breakers should be placed on top of one another. not across from one another. and use a meter to double check your work.

wirenut1110

Can you test voltage at the pump at make it sure it's 240. Just doesn't sound like it. is there any other 240 stuff running off this panel?

chris75

Can you take a picture of what you have hooked up at the panel and the motor?

wirenut1110

Come on Kona, we need to get this resolved so I can go watch lifetime with my g/f

konafixits

Believe me, I'd rather be doing anything else but this. I need to get a hold of a voltage meter, I suspect there is probably a voltage drop with that long of a run. However, my 110 stuff all seems to work OK. I operate several power tools off the subpanel with no problems. Not all at the same time however. I do have the breakers stacked, I'll forward a picture of the connections. After the voltage check I'll let you guys know what I come up with. Thanks for all the input. Aloha.

micromind

I'd bet that the feed to the sub panel is only 120. There may be 2 hots, but I'd bet they're both on the same leg. That would explain why the 120 volt stuff works, but no 240. If this is the case, it must be fixed, not just because of the 240 volt pump, but also because the neutral could easily be overloaded. Neutral current on the same leg will add, on opposite legs it will subtract. There's no overcurrent protection on a neutral, it'll just burn up if overloaded.

Rob

J. V.

Chris,
Yes, I have seen the voltage switch type motor and the jumper type. But at that moment we had no idea what he had. Now that we know it is straight 240 this should be corrected in short order.