I have a washing machine that works off a 4-wire 3 phase 220V circuit. I bought a new dryer that requires single phase 220V and I was wondering if I could tap into the junction box for the washing machine and get single phase 220V power for the dryer.
2007-03-11 07:36:58 · 8 answers · asked by Mert 1 in Home & Garden ➔ Maintenance & Repairs
Yes. The dryer can operate on a range of voltages from 200-230 volts. There are a couple of ways to pick off 208 volts single-phase from 220 volts three-phase..
2007-03-11 07:40:57 · answer #1 · answered by Thomas K 6 · 0⤊ 1⤋
If it is a 208V/120V service, the voltage between any two phase legs will be 208VAC; the voltage between any phase leg and the neutral (grounded conductor) will be 120VAC.
What you need to be aware of is the power requirement for your dryer vs. the overcurrent protection rating and wire size already instlalled for the washer. Adding the dryer load to one phase will unbalance the circuit, and my overload the phase that you pick enough to trip the breakers. And, depending on the wire size, it could also be a fire hazard.
The best solution for this application would be to run a new circuit for the dryer.
2007-03-11 08:47:03 · answer #2 · answered by Hank 3 · 2⤊ 0⤋
In the USA or Canada ( Mexico too ) you won't have 3 phase. If you do, call the power company and get it changed, the rates for 3 phase are higher. I cannot think of any reason that a normal house would have it. Normal is to have 220/240V and use a single leg for 120V. Do your outlets all have 4 slots? A 3 phase will. 220/240V will also but will have the wires as CharlesC described.
2016-03-29 00:16:49 · answer #3 · answered by Anonymous · 0⤊ 0⤋
if your dryer requires a neutral you will have a problem.
4 wire 3 phase has no neutral, the fourth wire is the grounded conductor not to be used as a neutral.
you will be better off pulling a new circuit and avoid future problems
2007-03-11 08:07:10 · answer #4 · answered by RUSSELLL 6 · 1⤊ 0⤋
Yes you can very easily. On a 3 Phase wire circuit you should have White, Black, Red, and Green wires. If you want to hook a single phase unit to this line all you have to do is use the white, black and green wires. Leave the red wire alone. Just make sure the existing line can handle the amperage for both of the machines. 10 guage wire will handle up to 30 amps. Be careful!!!
2007-03-11 08:26:54 · answer #5 · answered by zoso63 2 · 0⤊ 2⤋
Most products at the 220VAC has a voltage specifications between 200 to 240VAC. You need to determine if it needs 3phase or 2phase (single phase). I would pigtail from the junction box 3phase, using another junction box with a double pole breaker equal or lower than the breaker upstream and making sure the wire size meets NEC code rating. Two-hots & 1 ground. L6-30?? or NEC650 (208VAC/50AMP)
2007-03-11 08:20:11 · answer #6 · answered by honker 4 · 0⤊ 0⤋
Yes. Each of those three wires can be referenced to the neutral wire as a single phase. Your only concern is to safely add that new circuit and wire it as per the code.
2007-03-11 07:41:50 · answer #7 · answered by Rich Z 7 · 0⤊ 1⤋
your ans is yes!
just grab the right three, 2 hots and a neutral/ground
2007-03-11 07:46:50 · answer #8 · answered by ticketoride04 5 · 0⤊ 1⤋