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Old 11-24-2008, 04:41 AM   #1
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3 phase power from 5 wire to 4 wire


i recently purchased a commercial dishwasher that requires three phase power. I have a 4 pin point near the machine 3ph and earth (no neutral). The machine has five wires hanging out of it, 3ph, neatral and earth. how do i wire this up without the neutral?

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Old 11-24-2008, 05:27 AM   #2
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3 phase power from 5 wire to 4 wire


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Originally Posted by andrewmarcos@yahoo.co.uk View Post
how do i wire this up without the neutral?
I would imagine you do not.

In the US you would have to run a new circuit; or in the extremely rare case of a full conduit run, pull a neutral in.

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Old 11-24-2008, 07:34 AM   #3
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3 phase power from 5 wire to 4 wire


Are you sure it's 3ph and not 1ph 220 with neutral and ground (also 4 pins?)
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Old 11-24-2008, 06:53 PM   #4
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3 phase power from 5 wire to 4 wire


Single phase may be required for solenoids, timers etc!

If so, you'll require a neutral. No easy way out of it!
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Old 11-24-2008, 08:36 PM   #5
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3 phase power from 5 wire to 4 wire


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Originally Posted by Gigs View Post
Are you sure it's 3ph and not 1ph 220 with neutral and ground (also 4 pins?)
OP stated machine has 5 wires. That would mean 3 phase plus neutral plus ground.
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Old 11-24-2008, 11:37 PM   #6
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3 phase power from 5 wire to 4 wire


Normally in the UK system the voltage are 230 L-N and 400~415v L-L { both single and three phase }

You should double check the nameplate to see what voltage it required and It will be wise go get the electrician come in and have it termated proeprly due the L-L voltage may knock ya out.

Merci,Marc
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Old 11-25-2008, 10:07 AM   #7
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3 phase power from 5 wire to 4 wire


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Originally Posted by nap View Post
OP stated machine has 5 wires. That would mean 3 phase plus neutral plus ground.
I meant the outlet, not the machine.

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