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View Full Version : Installing a new Electric Cooktop (wiring help)


Anonymous
October 19th, 2002, 06:27 AM
Hello, (This is my first post, I'm remodeling my home and a novice at electrical issues).

Here's my issue...
I am remodeling a kitchen. I have purchased an Electric Whirlpool Glass cooktop (4 -cook eyes, no plate warmer). The model # is FEC30S6ABB with the following specs:
240/208 Volt
7.10/5.30 KW
60Hz
The label also indicates the following on it: "In USA use on a 3 wire 120/240 VAC System".

The cooktop has a 3 wire (RED, GREEN, BLACK) copper conductor flexible cable leading out of it. The three wires have the following printed on their insulation "EXL-150 AWM STYLE E 3321 150 degree C X-LINK 600V".

So, here is my question. What breaker size & type (single, double), wire size, and how do I connect it?

I'm assuming it will require a 30amp double pole breaker, which is typically wired with a 10-3 wire (RED,BLACK, WHITE, bare copper). The instruction sheet mentions 30 AMP, but doesn't specifically say "USE 30AMP breaker". Should it be single or double pole? The instructions also show a diagram for a 3 wire connection (Green to Ground -and to junction box, Red to Red, Black to Black). So, at the cooktop end, should I wire a 10-3 cable from a 30amp
double pole breaker to the junction box and then wire the Red to Red, Black to Black, and Green to White, and what do I do with the bare copper? At the breaker panel (assuming I'm right on the 10-3), RED and Black wires to proper power poles on the double pole breaker (again, assuming I'm right on the 30AMP 2-Pole breaker), White to the White ground bus, and copper to the copper ground bus?

Please help me out. Thanks.

Wgoodrich
October 19th, 2002, 12:57 PM
You cook top is calling for a 30 amp 240 volt branch circuit. However this cook top is not designed to use the white wire as a netural. There will be no 120 volt components inside the cook top or it would have a white wire in the pigtail coming from teh cook top..

You may install 10/3wGrnd as you said only at teh cook top junction box wire nut as a dead end the white wire. You will not be using this white wire of the 10 awg cable with black, red, white, and bare. The bare wire is to be connected to the green wire of the cook top and the white will be unused and bhe black and red will connect to mathing wire colors from teh cook top. In the panel a double pole 30 amp breaker with the black and red wires connected to the two lugs of the breaker then the white wire connected to the neutral bar wire the other white wires and the bare wire connected to the grounding bar with the other green or bare wires. This would give you options if you quite using the cook top in the future and say install a full sized range then you would have a white neutral conductor in taht cable that opens up options for other uses if the cook top no longer needed this branch circuit.

Actually, you could install a 10/2wGrnd cable using the bare wire connected to the green at teh cook top and the black wire connected to the black wire of the cook top and the white wire with a black or red tape ring added to say it is a converted to a hot wire conductor and this reidentified white wire with the black or red tape ring at each end would be connected to hte red wire of the cook top. In the panel the bare wire would connect to the grounding bar with the other bare or green wires and the white wire again would be reidentified to be a hot wire with a black or red tape ring on the conductor and this reidentified white wire with the tape ring installed with the black wire to the two lugs of that double pole breaker.

Hope this helps

Wg

Anonymous
October 19th, 2002, 04:51 PM
WG,
Many thanks for your help. This is a very helpful forum, and I much appreciate the prompt and excellent advice. I've already marked this site as a favorite, as I may have more questions before this remodeling project is complete! Thanks again. -Thomas