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Rick
Rick, Master Electrician
Category: Electrical
Satisfied Customers: 464
Experience:  10 yrs as a electrician. Have my own company.
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I bought a new electric kitchen range to replace my 18 yr old

Resolved Question:

I bought a new electric kitchen range to replace my 18 yr old one. The old range was hard wired and I had a question about hard wiring my new range. The installation instructions allow for my new range to be hard wired but it says I need to use 8 gauge copper wire. The wires that are coming out of my junction box are 10 awg. I am a little nervous to hook these up to my new range since it mentioned 8 gauge in the installation instructions. Is it safe to hook up my current 10 awg wires to my new range?
Submitted: 1 year ago.
Category: Electrical
Expert:  Rick replied 1 year ago.

Sparky :

Hello, my name is XXXXX XXXXX I'm here to answer any of your electrical questions.

Sparky :

No, it is not safe. It is against code to not follow the manufacturers instructions anyway. A new circuit would need to be ran from your panel to your new range.

Customer: Why would it not be safe? Can 8awg be wired in the junction box?
Sparky :

No the wire needs to start from the panel as a 8 gauge wire. It is not safe because a 10 gauge wire is only good for a 30 amp breaker. Your range probably requires a 50 amp breaker.

Sparky :

Wire is only rated for a certain amperage.

Sparky :

10 gauge is for 30-35 amps depending on the wiring method used.

Customer: Any idea on how much that would cost?
Sparky :

When I mention 8 gauge and 50 amp breaker it also depends on the wiring method used. If it is romex #8 can only handle up 40Amps. If it is ran in flex, or conduit it can handle up to 50 Amps. As far as cost goes the best thing I can advise you to do is contact 3 different electrical contractors and get prices from each. The reason for this is prices vary from city to city. Even from company to company. There are a lot of things to take into consideration depending on what obstacles a electrician has to go through to accomplish what needs to be done.

Sparky :

If you want a really rough estimate. Anywhere from $500-$1000

Sparky :

It could even be as cheap as $300 depending on how far away your panel is. and what wiring method could be used.

Customer: I am in front of my electrical panel now and it has a 40amp breaker for the range
Customer: So was my previous hookup not code?
Sparky :

What is the amperage of the old unit?

Customer: All I can read on the old one says 120/208 240 volts
Sparky :

I need to know either the watts, or amps

Sparky :

or kw?

Customer: Only other number that is readable says 40hz ac only
Sparky :

Well # XXXXX is good for up to 35 amps as I mentioned earlier.

Customer: So do you think what I had before was not a safe hookup with the 10 gauge hard wire for the old range?
Sparky :

That would depend on the amperage of the unit.

Sparky :

Here is the problem. Like I said #10 is good for 30 to 35 amps depending on your wiring method. If it's romex 30 amps, if it's ran in pipe, or flex 35 amps. Say your method of wiring is romex and your appliance draws more than 30 amps, then you are in trouble and are causing a risk of fire. The breaker should be on a 30 amp breaker if you have romex. If you are going over 30 amps, the wire will melt and eventually short out causing the breaker to trip, or even start a fire. Without all the specific information that I am asking you for, there is no way for me to tell you if something is right or wrong. If your home is old, that may have been fine back then. But because you are going through with a new installation, you need to follow all the new guidelines. The manufacturer has a reason why it needs to be 8 gauge wire. I have provided you with all the information I can give you with the limited information that you have given me. Sometimes we have to give information that you don't want to hear, but it is what it is. Please rate my service, thank you for your time.

Rick, Master Electrician
Category: Electrical
Satisfied Customers: 464
Experience: 10 yrs as a electrician. Have my own company.
Rick and other Electrical Specialists are ready to help you
Expert:  Rick replied 1 year ago.
Just wanted to say thank you for the ok rating. It is greatly appreciated. If you have any more electrical questions, please let me know. Here is my profile page. Thanks again.

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10 yrs as a electrician. Have my own company.