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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.

2 votes

Replaced my first power cord. Will I set the house on fire?

we don’t really know but if you have turned it on and it works without arcs and sparks. Then if you touch it you don’t get shocked you probably did a good job. Well now I see the first photo of the c …
Ed Beal's user avatar
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1 vote

Can I use a transformer with center tap to convert 240V to 120v?

what you have drawn would work if sized correctly based on voltage. However the U.S. power is 60HZ, I thought you were on 50HZ. The lower frequency may cause issues with the amplifier filter circuit …
Ed Beal's user avatar
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1 vote

Two 20 amp circuit breakers installed with copper wire bridge

Although a 6 penny nail that was cut off was common in years past nails and wire are not legal handle ties. Manfacturers do make snap in ties but they are harder to find today than a double pole break …
Ed Beal's user avatar
  • 103k
0 votes

Can a 120v pool timer be used on a two-wire 240v circuit?

I have used that model of timer, I believe you only break 1 leg of the 240v line so if you use L1 to the timer then on the output feed that to the L1 lead (or load) L2 is always connected to the load. …
Ed Beal's user avatar
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0 votes

Can I replace a outlet dedicated 16A/240V with a 20A/125V outlet

There is a fair safety factor built in when you consider amps but a big difference in 240v used in your country and 240v used in the US there is no neutral on a US 240v both legs are hot and there is only …
Ed Beal's user avatar
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4 votes
Accepted

220V/50hz with 10amp 3 wire

Many motors are dual rated and can handle the difference but if it is a true 50Hz 220V motor you will be connecting to 60Hz 240V so keep an eye on the tempature. …
Ed Beal's user avatar
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-1 votes

3 phase (delta) power to single phase space heater

If this is a DELTA usually the B leg is colored Orange and will be 2x the standard voltage. WYE connected systems all 3 legs have the same voltage. Verify the voltages prior to making any connections! …
Ed Beal's user avatar
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0 votes

One 60A 240v Breaker connected to 4 Outlets using PDB

Weather it is a 60 amp or 100 amp breaker unless the power distribution block has the appropriate circuit breakers (30 amp and 20 amp) this would be a major code violation. If it is a 100 amp #4 is tw …
Ed Beal's user avatar
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0 votes

Can I run these appliances with 25A

First there is not enough information, second this land lizard is a joke! I don't think dedicated monitors count at all if flat screen not old school crt's when the laptop is closed the monitor turns …
Ed Beal's user avatar
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3 votes

Help with sauna heater wiring diagram

the top one is other side of the pond where 220-240v to neutral is the type of power The last 380-415 you know you don’t need since you said 220v. … So again you need the middle print since you said 220/240v and you have a separate neutral. L1 is one hot and L2 is the other hot. Hope that helps. …
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0 votes

Grounded properly?

That ground looks acceptable inspectors usually use exhibit 120.3 when flagging an improper wrap. 110.3 specifically is about all minim wire but all wires under screws fall under the same requirements …
Ed Beal's user avatar
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1 vote

Daisy Chain 120V Disconnect Box from existing 240V box

It looks like your wires are much larger than 10 awg and you have red white and black as your feeder. If that is metal conduit you have your ground. If plastic conduit pull a new ground and go with a …
Ed Beal's user avatar
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0 votes

Upgrading 240v electric heater to mini split AC with heat pump

In all likelihood you may be able to use the power from the heater to power a mini split. However there are other rules that have to be followed to have a legal installation. Yes the line voltage ther …
Ed Beal's user avatar
  • 103k
0 votes

A/B switch for Two 240V connections into Electrical Panel

Since your ac and heat are not used at the same time you can ignore the smaller load when doing load calculations. So your 30 amp ac will be fine. Even with your total breaker count most panels do exc …
Ed Beal's user avatar
  • 103k
1 vote

Does a 240v water heater circuit require a neutral?

White is a color and on 240 you have no neutral so the white is used as a hot this is code compliant fro 240v only loads if there was 120v in the heater it would require a x-3 with ground wire. … There are ways if 120 was needed to make it from 240v today switching power supplies are common, in the past transformers were used but most of the time everything in the box is 240v so no neutral is needed …
Ed Beal's user avatar
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