DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Electrical and Wiring > More wiring questions !




Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 01-10-2010, 11:08 AM  
tiorunder
Junior Member
 
Join Date: Jan 2010
Posts: 9
Default More wiring questions !

The length of wire needed to wire my cooktop is approx. 20 feet. I have 2 questions:

1.) What size wire should I use ?
2.) What size (amps) circuit breaker should I use ?

Thanks again.

John from NC



__________________
tiorunder is offline  
 
Reply With Quote Quick reply to this message
Old 01-10-2010, 11:13 AM  
Blue Jay
Senior Member
 
Blue Jay's Avatar
 
Join Date: Jun 2008
Location: La Rue, Ohio
Posts: 250
Liked 10 Times on 10 Posts
Likes Given: 13

Default

Need to know how many amps the cook top requires. Would be stated on an information plate on the cook top.



__________________
Blue Jay is offline  
 
Reply With Quote Quick reply to this message
Old 01-10-2010, 11:23 AM  
tiorunder
Junior Member
 
Join Date: Jan 2010
Posts: 9
Default

It is a new Frigidaire unit and the only specs I found on it were as follows: "All electric cooktops run off a single phase, 3-wire or 4-wire cable, 240/208volt, 60 hertz, AC only electrical supply with ground."

__________________
tiorunder is offline  
 
Reply With Quote Quick reply to this message
Old 01-10-2010, 02:21 PM  
speedy petey
Lic.Electrical Contractor
 
Join Date: Mar 2006
Posts: 433
Liked 31 Times on 22 Posts
Likes Given: 13

Default

There will be a wattage or kW rating somewhere. Typically there is a sticker or plate right on the unit.

Without that we cannot give an answer.

__________________
speedy petey is offline  
 
Reply With Quote Quick reply to this message
Old 01-10-2010, 02:55 PM  
tiorunder
Junior Member
 
Join Date: Jan 2010
Posts: 9
Default

208 - 5.0 kW
240 - 6.7 kW

Hope this helps. Thanks again.

__________________
tiorunder is offline  
 
Reply With Quote Quick reply to this message
Old 01-10-2010, 04:36 PM  
speedy petey
Lic.Electrical Contractor
 
Join Date: Mar 2006
Posts: 433
Liked 31 Times on 22 Posts
Likes Given: 13

Default

A 30A circuit would be legal, but a 40A circuit would afford some cushion and allow for a larger unit to be installed in the future.

A 30A circuit would require #10cu or #8al
A 40A circuit would require #8cu or #6al (possibly #8al depending on installation/application and code cycle followed).

Do the instructions mention a "4-wire" feed, or anything about requiring a neutral?

__________________
speedy petey is offline  
 
Reply With Quote Quick reply to this message
Old 01-10-2010, 08:31 PM  
tiorunder
Junior Member
 
Join Date: Jan 2010
Posts: 9
Default

The instructions include wiring illustrations for both 3-wire and 4-wire installation.

__________________
tiorunder is offline  
 
Reply With Quote Quick reply to this message
Old 01-10-2010, 08:32 PM  
tiorunder
Junior Member
 
Join Date: Jan 2010
Posts: 9
Default

In the 4-wire illustration, the white feed wire is capped.

__________________
tiorunder is offline  
 
Reply With Quote Quick reply to this message
Old 01-11-2010, 05:08 AM  
speedy petey
Lic.Electrical Contractor
 
Join Date: Mar 2006
Posts: 433
Liked 31 Times on 22 Posts
Likes Given: 13

Default

OK, so this is a straight 240v appliance. The 4-wire illustration is only there for installations where this unit is replacing a unit with a 4-wire feed.

For your new circuit you would use 10/2 or 8/2 cable. IMO for what you are installing 10/2 is fine. Especially considering the short distance and that this is brand new unit. Any future upgrade, while unlikely any time soon, will not be very hard.

__________________
speedy petey is offline  
 
Reply With Quote Quick reply to this message
Old 01-11-2010, 05:50 AM  
tiorunder
Junior Member
 
Join Date: Jan 2010
Posts: 9
Default

Thank you Speedy Petey !



__________________
tiorunder is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Wiring new fan Amber Electrical and Wiring 1 10-14-2008 09:02 AM
DW & GD wiring shan2themax Electrical and Wiring 7 05-18-2008 09:09 AM
Wiring 220 Kelly Electrical and Wiring 6 02-04-2008 04:08 PM
Two questions regarding outlet wiring Pastey Electrical and Wiring 5 04-14-2007 12:00 PM
Kitchen wiring questions! Quattro Electrical and Wiring 5 01-30-2007 07:36 AM