Skip to main content

Questions tagged [240v]

For questions dealing with 240 volt electrical circuits, devices, and equipment. This tag covers the similar voltages as well (i.e. 220, 230, etc), since they generally refer to the same thing. Use with the [electrical] tag.

0 votes
2 answers
35 views

A 220v Circuit breaker that controls either AC or an inlet switch box

I have a kill switch by my AC (40 Amps circuit breaker). I want this to be a selector to run AC or an inlet switch when there is no power (40 amp circuit) so I can plug in my generator to power the ...
Mohammed Hameed's user avatar
2 votes
1 answer
56 views

Wiring a 240v GFCI Breaker for NEMA 6-20R

I'm working on wiring up my new workshop. I've done a good amount of DIY electrical work before but I've never wired up a 240v receptacle like this before that doesn't have a neutral (NEMA 6-20R). ...
karamazovy's user avatar
0 votes
2 answers
66 views

I want to plug my NEMA 6-50 extension from the wall to my welder

I have a welder that draws 45 amps and (will soon have) a NEMA 6-50R outlet in my garage. I bought a very nice NEMA 6-50 extension cord, expecting to cut the female end off and wire it to have a long ...
user1683793's user avatar
0 votes
4 answers
90 views

How can I switch between high-current 240V devices in my workshop?

I am the only one working in my shop. I do not have to worry about anyone else switching power cords etc. I have a double 50 amp breaker, and only one 240v 50 amp outlet connector. I have to manually ...
Mizell Paint  Body Shop's user avatar
2 votes
2 answers
660 views

Which gauge wire for a window AC unit?

I’m planning to add a new dedicated 240v/20A circuit for a window AC unit. The route from the main electrical box to the outlet will require about 65-70 ft of wire. The wire will also travel about 10-...
Justin's user avatar
  • 145
1 vote
1 answer
59 views

Hooking up an Australian motor in USA

I have an Australian motor (240V single phase, Type I plug) that I want to use in USA. Australian 240V is 240V+Neutral+Earth(Ground). US 240V (NEMA 6 outlets) is 120V+120V+Earth. Can I simply rewire ...
Gene Schwarzrock's user avatar
1 vote
1 answer
77 views

#8 wiring to mini split keeps getting hot with only 20 Amp draw?

Okay I'm stumped here. I just had to repair the wiring to my mini split for the second time. The first time was last year when a fuse able link burned out at the unit. This year the wire at the ...
Dav_Daddy's user avatar
0 votes
1 answer
53 views

Can I split a 220 on an old house if I add a neutral wire?

I'm working on my late brothers house and need a 110 for the sump pump and one for the furnace. The house was built/wired in 1922. It has a 220 that was used for heating/AC, but it is a 3 wire circuit....
Larry55's user avatar
5 votes
2 answers
1k views

Do I have room to add a 240V breaker in my panel?

I’m trying to see if I have room to add a 240V line for a mini split. The mini split I got is a Gree with nominal 9 amp pull and manufacturer recommended breaker size of 20 amps. Any thoughts on an ...
Chris's user avatar
  • 53
4 votes
3 answers
1k views

Running two dryers same circuit, controlled by switch [duplicate]

I have two dryers side by side in my basement, one is for a dog washing business. One is for my clothes. I don't need both running ever at the same time so I currently just unplug and plug in ...
Blake's user avatar
  • 41
0 votes
2 answers
125 views

How can a 240V device with a single hot terminal be wired with two 120v hot wires?

US based. I am looking to install this radiant floor themostat: https://www.homedepot.com/p/QuietWarmth-120-Volt-240-Volt-7-Day-Programmable-Floor-Warming-Thermostat-THERMPRO/318528774 The thermostat ...
Andy Hall's user avatar
  • 237
1 vote
1 answer
145 views

Is it possible that a 240V wall heater is connected to one breaker?

I have an old wall mounted electric heater. It takes 240v. I only see two wires that it’s connected to and at the breaker box it’s only connected to one breaker. The breaker that it’s on only has one ...
milesmeow's user avatar
  • 5,138
3 votes
1 answer
62 views

New 40Amp cooktop, should I run 2 wire or 3?

My old 30Amp cooktop finally gave out. Picked up a new one that is 40Amp and requires a new 8 wire. The cooktop is only a 2 wire connection. Is there any value in running a 3 wire with neutral? The ...
Know One's user avatar
0 votes
2 answers
107 views

Drawing up to 12kW through a NEMA 14-50R at 120V

The 14-50R has L1, L2, Neutral and GND connections. Of course, you can draw 12kW across L1 and L2 by pulling 50A from the circuit. In this case, there is 50A flowing in each of the L1 and L2 wires ...
Stephen Hicks's user avatar
0 votes
1 answer
111 views

Is my 240v outlet wiring adequate for a welder?

My garage has a 240v outlet and when I tried to switch the breaker on it tripped the main. The garage has a breaker box that is wired into the main house box. The main box (200 amp service) has two ...
James's user avatar
  • 1

15 30 50 per page
1
2 3 4 5
32