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Glenn, Electrician
Category: Home Improvement
Satisfied Customers: 2311
Experience:  former journeyman electrician /maintenance mechanic for 30 years
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wire a 30A 125/250V 3 pole 4 wire locking plug

Customer Question

I need to know how to wire a 30A 125/250V 3 pole 4 wore Grounding Locking Plug. What color wire goes to what prong. The plug is not marked.
Submitted: 10 years ago.
Category: Home Improvement
Expert:  Glenn replied 10 years ago.

Hello the back should be marked

The hot wire black will bo to a dark colored screw and so will the other hot wire the other dark screw

The netural usually white will go to a silver screw

The ground will go to the green screw