Electrical Wiring in the Home/Amps / kw cir. breaker


QUESTION: I have a new GE Wall oven.  The rating on the unit is 240v - 4.2 kw which on their chart is the lowest number. 20 amp breaker.  Do they want me to run a 12/3 wire from a single 20 amp breaker or do 20 amp breaker come in 240v ?  oven has a black wire, red wire, the white and ground are connected together.

I will be running a new wire. Less than 40'.

ANSWER: Brent,

There seems to be some confusion. You say the voltage rating on the unit is 240 volts yet you also say there are 4 wires, black, red, white, green, which strongly suggests this unit requires a neutral (white wire) for 120 volts. In other words it appears the oven requires 240/120 volts to operate. Check the "name plate" info again or better yet just give me the model #


---------- FOLLOW-UP ----------

QUESTION: Yes four wires. black one says on it 14 awg.  the three colored wires are silver and the ground is copper.   Model # JT1000DF2BB   name plate has kw 4.2 next to that  120/240 60 HZ

Ok that confirms it. You need 12-3 going to the oven. Blk to blk, red to red, wt to wt, bare ground wire to green. You will separate the green and the
white in the oven.  You need a 2 pole 20 amp breaker for the panel. Blk and red connected to the breaker. White and bare ground connected to where the other white and bare wires are connected if its your Main panel not a sub panel.

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Licensed Master Electrician (32 years) 6165B Contractor in Closter New Jersey with 40 years total experience in Residential - Commercial - Industrial work. Emergency Service - General trouble shooting and repair work - ONAN & GENERAC generator installation - Paddle fans - Kitchen & Bath exhaust fans - AC lines - Smoke detectors - Telephone lines - Cable TV lines - Computer network cabling - Exterior lighting - Recessed lighting - Security lighting - (200 - 150 - 100 amp service up grades) - Electric Heat - New circuits - New appliance hook ups - and more ! FREE ESTIMATES 201-358-1552 Fully Insured


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"The Frank Williams School of Electrical Construction". My dear old boss is 100 ! and still going God Bless him. I started working for "Tenafly Electric" right out of high school at 19. He was tough but I learned more working for him in 8 and half years than most guys. We did mostly industrial work while doing some commercial and residential so I was fortunate to be exposed to all 3 areas of electrical construction. The guys I worked with were all good guys and I stay in touch with some of them still. Most of us went into our own buisness's which says something about the caliber of the guys I worked with. We had some interesting clients : Wella Corp. of shampoo fame, Farah Fawcett etc, I didn't buy shampoo for 10 years. It was a great place to work. Pan Am the former airline just before they went under, another great place to work, nice clean environment. C&C Metals, the largest button manufacturer in the US at that time, a not so clean environment but a very interesting place to work, lots of machine's cranking out buttons of all kinds but you had to be on your toes, it was a potentially dangerous place to be . All kinds of action going on around you.

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