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You are not supposed to wire 3 phase equipment to a s pin plug... ever.

in the wire there will be brown, black & grey, these are the phase colours, the blue represents neutral, but in a four wire there shouldn't be a neutral as the left over colour will be an earth (yellow/green).

4 wire cables are designed for balanced equipment and require the offset phases in order to function, if they are wired into the same phase the motor it is designed to run will not move, and may burn out.

You will need to install a 3 phase 4pin socket at the right ampage for the machine it is designed to run.

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12y ago
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15y ago

You will have to change the outlet in the wall. If you change the cord on ? you could void any warranty. With the power off changing the outlet in the wall is not that difficult. You will have to add a ground wire to a close ground (cold water pipe), then use the existing ground for the neutral or white wire. hope i helped . D

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15y ago

Need voltage and amperage to select the correct plug to tell you which pin the ground wire connects to.

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Q: How can i hook up a 4-wire hook up to a 3- prong plug?
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Can you plug a 2 prong extension cord into a 3 prong extension cord?

I don't know about an extension cord, but they do sell plug adabters. You can pick them up at any hardware store or even Wal-Mart. They are ussaully grey or orange , and look like the plug end of the extension cord. One end will have the 2 prong, the other side will have the slots to plug in the three prong.


Is it possible to put a 4 prong plug on a dryer that uses a 3 prong plug?

Yes this is possible and for safety's sake highly recommended. Instructions should come with the new cord. Open up the electrical access panel on the back of the dryer. You will see a terminal block with three wires going into it from the plug cord assembly. A red and black and white are now connected to the terminal strip. Look at the position and colours of the existing 3 prong cord and how it is connected. Make a diagram. Coloured wires on the outside terminals white in the centre. From the centre wire terminal you will see a jumper strap that goes to the frame of the dryer. When installing the four prong plug this jumper is removed completely. The kit should have with it a grounding lug that connects to where the removed grounding strip attached to the frame of the dryer. This is the attachment point for the fourth green ground wire from the new dryer cord assembly.


You are trying to change a 3 prong cord to a 4 prong your new dryer has two green cables attached to the inside of the dryer?

Dryer plug three to fourOpen up the electrical access panel on the back of the dryer. You will see a terminal block with three wires going into it from the plug cord assembly. A red and black and white are now connected to the terminal strip. Look at the position and colours of the existing 3 prong cord and how it is connected. Make a diagram. Coloured wires on the outside terminals white in the center. From the center wire terminal you will see a jumper strap that goes to the frame of the dryer. When installing the four prong plug this jumper is removed completely. The kit should have with it a grounding lug that connects to where the removed grounding strip attached to the frame of the dryer. This is the attachment point for the fourth green ground wire from the new dryer cord assembly.


Why are my 3 prong outlet installed upside down?

in the olden days, electrical engineers figured if you drop razorblade or pin between the receptacle and the plug, the metal will get in contact with the ground prong thus minimizing the chance of energizing a metal object. this is why most outlets in schools and hospitals are installed ' upside down". nowadays we install them 'downside up' to see a smiling face. ha ha.


How do you remove a stuck plug from the outlet?

First, you need to turn off the electricity on that circuit at the meter box. Then, it is a matter of mechanically removing the remains of the plug. If you end up damaging the outlet, you will need to replace that, too. It depends on the type of plug that broke off as to whether you can replace it on the same wire.

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