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I have 480v 3 phase I want to set it down to 240v single
I have 480v 3 phase I want to set it down to 240v single phase. I am grabbing 2 legs of power and stepping it down.… read more
Mike G.
Mike G.
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Vocational, Technical or Trade Scho
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I need to install two EPO buttons for one 480v circuit and
I need to install two EPO buttons for one 480v circuit and two 208 circuits all 3 breakers have 120v coils … read more
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I have two 400 kW gensets connected through a synchorization
Hello. I have two 400 kW gensets connected through a synchorization panel. Am generating 480V/60hz - 3phase power. … read more
Sam I
Sam I
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B.S.
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30amp circuit needs to be split into two 15amp circuits,
30amp circuit needs to be split into two 15amp circuits … read more
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Sam I
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I have a simlar question about a started G snswered on.
i have a simlar question about a started Mike G snswered on … read more
Mike G.
Mike G.
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Vocational, Technical or Trade Scho
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I have a situation where 480V, 400A 3 phase feed is
I have a situation where 480V, 400A 3 phase feed is connected to the primary of an 330kVA isolation transformer and the secondary of an isolation transformer is connected to 400amp cables. It also has… read more
Mike G.
Mike G.
Master Electrician
Vocational, Technical or Trade Scho
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Trying to figure out why my 30amp Seimens breaker keeps
trying to figure out why my 30amp Seimens breaker keeps tripping on my sun panel in the garage.… read more
Mike G.
Mike G.
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Vocational, Technical or Trade Scho
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I need to go from 120V three phase to 480V three phase for
I need to go from 120V three phase to 480V three phase for a motor - the electrician hooked it up to 120V not 480V. How would this be done?… read more
Steve G.
Steve G.
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Hello, we just purchased a machine that requires 230 VAC +10%
Hello, we just purchased a machine that requires 230 VAC +10% -0% 3 phase with the electrical diagrams calling for 15 amps. Our building is supplied with 480 VAC 3 phase delta, with a transformer to s… read more
Steve G.
Steve G.
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I have a brand new dryer just bought it I have 2 single 20amp
I have a brand new dryer just bought it I have 2 single 20amp breaker it dryies for 5min and keeps triping I tested volts both have 120v manual said separate 30amp circuit can I use 2 single 30amp to … read more
seanecter
seanecter
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I have 4 wires coming from my sub-panel green white black and
I have 4 wires coming from my sub-panel green white black and red. the black and red are connected to the hot side of a 20 amp split breaker. how di I connect a series of outlets to this 4 wire cable?… read more
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Steve G.
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im trying to power a 30 amp 110 volt ac travel trailer from
im trying to power a 30 amp 110 volt ac travel trailer from my electric welder 220 outlet in the wall of my house, the welder electric panel is 2- 30 amp 110 breakers, can i turn one of these off, and… read more
Joseph
Joseph
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For a 75kva transformer, 480 step down to a 240/120v, how would
For a 75kva transformer, 480 step down to a 240/120v, how would I size the primary and secondary conductors.… read more
Mike G.
Mike G.
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Vocational, Technical or Trade Scho
8,290 satisfied customers
I have installed a 220v subpanel in my attic. using a 40amp
I have installed a 220v subpanel in my attic. using a 40amp double pole breaker, 8-3 wire and attaching the hot wires (red and black) to either side of the terminals in the sub panel, neutral and grou… read more
Joseph
Joseph
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Can a 6-3 w/ground ufb run for a shed 125 feet away?
Can I run 6-3 w/ground UFB for a shed 125 ft. away and what size sub-panel can I expect or do I need to go with #4 thhn? I'm looking at running 4 overhead shop lights and 4 receptacles at a work bench… read more
Joseph
Joseph
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I want to add electric service to 3 sheds using the two spaces
I want to add electric service to 3 sheds using the two spaces left on my 200 amp house panel. I want to use the no.10 awg wire I have on hand. I have 3-wire and 2-wire no. 10 awg wire. I would like t… read more
Joseph
Joseph
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I am buying a steam shower that has a 120 (singles pole) 27
I am buying a steam shower that has a 120 (singles pole) 27 amps need. I looked online for a wire gage calculator because i was afraid that since the electrical line was going to be at about 100 feet … read more
Joseph
Joseph
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Can I run 240V on #8AWG to a sub-panel 250 feet away and then
Can I run 240V on #8AWG to a sub-panel 250 feet away and then use a step down transformer to supply 120V at the sub-panel?… read more
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Joseph
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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