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Anonymous Posted on Aug 17, 2014

How to convert 220v 3 wire supply to 380v using a triple pole fuse

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Gene Haynes

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  • Master 5,391 Answers
  • Posted on Aug 18, 2014
Gene Haynes
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You have 3-phase 230-240V, and you want 3-phase 380V
Requires 3 transformers with 230-240V primary coil and 380 secondary coil.
You cannot change voltage with a fuse.
The purpose of a fuse is to measure heat on the wire,,, and trip when heat exceeds fuse rating.
http://waterheatertimer.org/How-to-wire-3-phase-electric.html
http://www.electriciantalk.com/f5/

Gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

3 Related Answers

A

Anonymous

  • Posted on Jun 22, 2011

SOURCE: i have a single pole switch that currently

Wiring is not fully described: Location of hot wire and neutral wire from breaker box are unknown.
If Hot wire arrives in ceiling box first, the switch box will not have white neutral wires that are twisted together and covered with wire nut. Neutrals will be in ceiling box.

What is known: You are replacing single pole switch attached to one 14-2 wire going to light.
You are replacing light with a fan-light and replacing switch with a 3-pole TM8111 switch.
You have replaced 14-2 wire with 12-3 wire.

TM8111 wiring shows following link:
http://waterheatertimer.org/images/TM8111-switch-wiring-500.jpg
Fan pull-chain wiring shows following link:
http://waterheatertimer.org/images/Fan-motor-1-344.jpg
Assume neutrals in ceiling box.
Assume Hot wire in ceiling box: Connect 12-3 black wire to black Hot wire. Connect 12-3 white wire to black wire on light. Connect 12-3 red to red wire on fan.
White neutral from fan and white neutral form light connect to other white neutral wires and covered with wire nut.
Wiring at switch:
Black Hot wire from ceiling box connects to A COM terminal.
White wire to ceiling light connects to A SP2
Red wire to fan connects to A SP1

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jkleyden

jkleyden

  • 21 Answers
  • Posted on Dec 19, 2012

SOURCE: Replacing a triple single pole (1980's) with a

DISCLAIMER:Attempting to work on house electrical systems without proper training is DANGEROUS and you stand the risk of dying.


The Cooper 7729w is a three pole single throw switch with a common (connected) hot wire that supplies it. What you had before was two separate single pole single throw switches and one single pole double throw switch that is used as a three way. The short answer is NO that replacement will not work UNLESS you don't want the other switch on the other side of the room to work.


Personally, I think that if you really need to ask this question you need to seek the advice of a professional electrician.

Anonymous

  • 2 Answers
  • Posted on Mar 04, 2013

SOURCE: what gauge wire do I use for 220V / 11000W / 50A water heater

Going by your info - Should be #6 copper ( but, did you take an amp draw reading to make sure? also a quick call to the manufacturer could solve the problem to.

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Replacing a triple single pole (1980's) with a

DISCLAIMER:Attempting to work on house electrical systems without proper training is DANGEROUS and you stand the risk of dying.


The Cooper 7729w is a three pole single throw switch with a common (connected) hot wire that supplies it. What you had before was two separate single pole single throw switches and one single pole double throw switch that is used as a three way. The short answer is NO that replacement will not work UNLESS you don't want the other switch on the other side of the room to work.


Personally, I think that if you really need to ask this question you need to seek the advice of a professional electrician.
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If I understand correctly, you replaced a triple pole switch with another triple pole switch?

The key to replacing electrical devices is noting color of each screw.
Hot goes to dark screw.
Load wires going to each light connect to brass screws.
Neutral wires do not connect to switches.

Electricians don't guess, they test.
Separate wires for testing.
Tape tester leads to wood sticks to keep hands away from power.
Turn power ON.
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Tester lights up on Hot wire.
This is the wire that comes from circuit breaker.
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Connect each of the other wires to brass screws, and use switch to test which wire goes to which Load.

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you via e-mail while you work on circuit or any do-it-yourself project.
Fixya is always less expensive than a service call.
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