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-   -   old Hotpoint elect. range. How many amps? (http://www.diychatroom.com/f18/old-hotpoint-elect-range-how-many-amps-117443/)

borrmabd 09-16-2011 07:48 PM

old Hotpoint elect. range. How many amps?
 
I purchased an older (probably 12+ years) used electric Hotpoint range to replace a propane stove at a hunting shack. nothing on the name plate says anything about amps. Just says 10.6 killowatts 120/240 and 8.2 killowatts 120/208. Want to put the right gauge copper wire in, as well as correct breaker for the amps? Plenty of power to load center, and run to range location is just shy of 40'.
8/3 with 40 amp breaker or 6/3 with 50 amp breaker?

jbfan 09-16-2011 07:59 PM

10.6 kw/240 volt= 44.16 amps, so go with the 50 amp and #6/3 wire.

Code05 09-17-2011 03:52 AM

Quote:

Originally Posted by jbfan (Post 729671)
10.6 kw/240 volt= 44.16 amps, so go with the 50 amp and #6/3 wire.


Column C of 220.55 says a 8kW demand factor for a 10.6 kW range, so a 40 amp breaker and 8/3 cable would work.

220.18(C)

borrmabd 09-17-2011 06:41 AM

So I could go either way? 50 amp breaker with 6/3 or 40 amp breaker with 8/3? I assume the 40 amp with 8/3 would save $$. Which would be safer? the 250 unit seniors building it came out of were using 50 amp breakers in all the units. Hmm

CheapCharlie 09-17-2011 07:00 AM

Quote:

Originally Posted by borrmabd (Post 729874)
So I could go either way? 50 amp breaker with 6/3 or 40 amp breaker with 8/3? I assume the 40 amp with 8/3 would save $$. Which would be safer? the 250 unit seniors building it came out of were using 50 amp breakers in all the units. Hmm

What kind of plug is on the end of the cable for the range? 40A or 50A? You can't put a 40A receptacle on a 50A breaker.

borrmabd 09-17-2011 07:08 AM

It didn't have a plug... so I was going to purchase a 4 prong (not even sure if they come in 40 and 50 amp). I thought I read somewhere that because of the short 6' distance in the cord...40 amp cord works as well?

CheapCharlie 09-17-2011 07:31 AM

Quote:

Originally Posted by borrmabd (Post 729889)
It didn't have a plug... so I was going to purchase a 4 prong (not even sure if they come in 40 and 50 amp). I thought I read somewhere that because of the short 6' distance in the cord...40 amp cord works as well?

40A and 50A receptacles are physically different as well. So you have to match them up. But as a previous poster said, use a 50A breaker, 50A plug, 50A receptacle and #6 wire.

BTW, the demand factor from the previous poster is only for calculating a service, not for sizing for the individual appliance.

borrmabd 09-17-2011 07:35 AM

Awesome. thank you. Hope to be in Manitoba again this year in a week goose hunting.:thumbup:

rjniles 09-17-2011 08:48 AM

Quote:

Originally Posted by CheapCharlie (Post 729906)

BTW, the demand factor from the previous poster is only for calculating a service, not for sizing for the individual appliance.

This statement is not correct, you need to read the NEC sections quoted. They very specifically say that the de-rating table is applicable for a single kitchen range appliance.

BTW, you can use a 50 amp receptacle on #8 wire with a 40 amp breaker.

brric 09-17-2011 08:54 AM

Quote:

Originally Posted by CheapCharlie (Post 729906)
40A and 50A receptacles are physically different as well. So you have to match them up. But as a previous poster said, use a 50A breaker, 50A plug, 50A receptacle and #6 wire.

BTW, the demand factor from the previous poster is only for calculating a service, not for sizing for the individual appliance.

Would you please show me a NEMA designation for a 40 amp plug and receptacle.

Code05 09-17-2011 08:59 AM

Quote:

Originally Posted by brric (Post 729955)
Would you please show me a NEMA designation for a 40 amp plug and receptacle.

I wanna see it also.

mpoulton 09-17-2011 12:15 PM

Quote:

Originally Posted by CheapCharlie (Post 729906)
40A and 50A receptacles are physically different as well. So you have to match them up. But as a previous poster said, use a 50A breaker, 50A plug, 50A receptacle and #6 wire.

BTW, the demand factor from the previous poster is only for calculating a service, not for sizing for the individual appliance.

AFAIK, TANSTAAFAR (there ain't no such thing as a forty amp receptacle). Just 30's and 50's. A 40A circuit would use a 50A receptacle. And I'm pretty sure the article quoted specifically applies to kitchen range branch circuit sizing. #8 wire with a 50A receptacle on a 40A breaker would be correct.

CheapCharlie 09-17-2011 08:05 PM

1 Attachment(s)
Nema 14-50

Code05 09-17-2011 08:25 PM

Quote:

Originally Posted by CheapCharlie (Post 730342)
Nema 14-50


Yes that is 50 amp receptacle.

brric 09-17-2011 08:25 PM

Quote:

Originally Posted by CheapCharlie (Post 730342)
Nema 14-50

What's your point? that is a single phase, four wire 50 amp receptacle. Where is thwe 40 amp you alluded to?


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