Changing circuit 110 to 220
#1
06-04-17, 07:07 PM
Changing circuit 110 to 220
Currently I have a circuit with a 15 amp GFCI breaker inside , 14/2 wire to a switch before going outside through underground conduit to a pool shed . In there it powers the pool pump etc. The pump can be wired to 110 or 220.
Can I ..... use a double pole 15 amp GFCI breaker, same gauge wire (eliminate that switch) and run both the new hot lines thru the black/white underground (what used to be hot / neutral) and have 220 power into the pool shed? Is that how that would work safely without having to dig and run new conduit or new line underground?
I don't think it would work because I don't know how a neutral would get outside then?
Can I ..... use a double pole 15 amp GFCI breaker, same gauge wire (eliminate that switch) and run both the new hot lines thru the black/white underground (what used to be hot / neutral) and have 220 power into the pool shed? Is that how that would work safely without having to dig and run new conduit or new line underground?
I don't think it would work because I don't know how a neutral would get outside then?
#2
06-04-17, 07:18 PM
Group Moderator
Welcome to the forums.
Our North American power grid supplies 120/240v.
You can convert the circuit to 240v use but then there would no longer be any access to 120v. At your pool shed there will be 240v only.
Our North American power grid supplies 120/240v.
You can convert the circuit to 240v use but then there would no longer be any access to 120v. At your pool shed there will be 240v only.
#3
06-04-17, 07:46 PM
So I would be okay if I was happy with powering just the pump , but with only 240v , then any desire to add light fixture, outdoor receptacle etc - at least on that circuit, would be gone, right?
#4
06-04-17, 07:53 PM
with only 240v , then any desire to add light fixture, outdoor receptacle etc - at least on that circuit, would be gone, right?
#5
06-04-17, 09:17 PM
Group Moderator
To have both 240v and 120v you need a subpanel.
You'd need fours wire to properly supply a 120/240v sub panel.
* or four separate conductors in conduit.
