Coverting 240 spa line to 120?
#1
Member
Thread Starter
Join Date: Jul 2015
Posts: 11
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Coverting 240 spa line to 120?
I have a 240 line that used to power a hot tub on my back deck. The line has 4 leads but only 2 are connected back at the panel via a 50 amp breaker. Any suggestions on converting this to 120 to power a couple outlets and ceiling fan?
#2
You would need to use pigtails to fit a receptacle and probably to fit the 20 amp single pole breaker you would need. Probably easier to run a new cable,
Plan "B" Convert the receptacle to a subpanel and install a 20 amp breaker.
Plan "B" Convert the receptacle to a subpanel and install a 20 amp breaker.
#4
So long as you have six breakers or less you could use a four or six space main lug 60 amp weatherproof panel. You will need to buy and install a ground bar. The neutral bar will be isolated. That is the bonding screw or strap isn't used. Red and black of the old feed go to the hot lugs. White goes to the neutral bar and ground to the ground bar. You will also need one (or two) ½"x8' ground rod at the sub panel. It is connected to the ground bar in the subpanel by a #6 wire.
Double check the ground and neutral. They should be connected to the neutral bar (or if separate ground bar to the ground and neutral bar).
but only 2 are connected back at the panel
Last edited by ray2047; 07-27-15 at 08:03 AM.
#6
The wires are not color coded. I have 4 black wires.
The other two wires should be connected to the neutral bar (or if separate ground bar to the ground and neutral bar) but if they are black they are not code compliant as explained unless they are #4 or large which is unlikely.
#7
Member
Thread Starter
Join Date: Jul 2015
Posts: 11
Upvotes: 0
Received 0 Upvotes
on
0 Posts
So I have 2 leads coming off the 50 amp breaker and the other two are tied to a bar underneath the breakers in the main panel that is also tied to a ground bar in the main panel. The wire size is pretty significant. Probably a quarter inch or more across.
#8
Look for writing on the wires.
With insulation doesn't count. Thickness of insulation can vary. It is the wire inside that counts. (#6=0.1620in).
The wire size is pretty significant. Probably a quarter inch or more across.
#10
If it is in conduit I'd just try to pull the old out and pull in #12 (1 black, 1 white, 1 green). Then change the breaker to 20 amp single pole and a dummy in the space left open.