Electrical Questions? Ask an Electrician Online.
Welcome. My name is ***** ***** would be glad to assist.
What was the plug and cord used on previously?
What is going to connect to now?
Do you have a 2 lead voltage tester?
The reason for so many questions, is the wire colors are incorrect on the L14-30, so someone is using a wire incorrectly and we need to be sure of the connections.
Let me know and we can continue,
I am assuming that you may be using the cord for something else not sure.
Let me post a picture I made to show the difference in the 2 plugs.
If you look at the inside of the plugs, the terminal slots are actually embossed with the Letters.
x, y, w, g on the L14
x, y and g on the L6
The L14 is for combination of 120 and 240 volt equipment
The L6 is for 240 volts only
Both have a ground of course.
Just cap off unused wires for future needs of returning back to a 4 wire plug
See the diagram , let me know what further may be needed,