Long story short but I need to move my 220v dryer electrical box due to a remodel. I literally have to move the box 3' but due to the 220 run from the panel I cant pull anymore wire. My plan is to place a junction box and run more 220 to the new placement of the dryer plug. Anyway, do they make wire nuts big enough for 220 wire or is there some other type of hookup I'll need to use for the junction box?
If the wire is solid then this device would not be legal, it is only rated to 14awg solid. You could use it for stranded as long as you understand how to use the 3 different types of tape required to wrap it, cambric, rubber, and electrical. Obviously if you didn't wrap it correctly they could short together, best case is a tripped breaker, worst case minor leakage results in a fire. When you wrap it with the 3 tapes you end up with quite a large ball. This is a 250V device which is OK.
Maximum Solid Wire Range 14 AWG
Maximum Stranded Wire Range 2 AWG
A wire nut is a 600V rated device and we use them running 100's of feet to connect to 480V 3 phase motors. Do you have 3 or 4 wire? Is the junction box plastic or metal?
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I picked up a pack of red wire nuts after work and worked well for connecting the 10g solid wire. After securing the wire nut I wrapped the connection with rubber tape before applying electrical tape for insurance. After connecting/taping all of the connections I covered the junction box with a solid plate. Turned the breaker back on, plugged in the dryer and ran for a couple of minutes making sure everything was good.
Use the box already at the drier outlet for your junction box than put a blank cover. Use 10/3 wire for your extension and red wire nuts. I still do it the old fashioned way and wrap my wire nuts and receptacles with electrical tape.
Depending where your drier is going to be located you could also use exterior wire mold, put a box over the existing outlet than mount the other box at your new location for the outlet. Exterior molding can be painter or is sold in white.
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