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Posted by BobH on December 1, 2006, 12:31 pm
I am changing a 50-amp breaker to a 30-amp one to install an oven that
draws less current than the old one did. I have seen information here
about testing a bad circuit breaker, but how do you test a good one? In
other words, if I install a new breaker, how do I know it will trip if
the load exceeds 30 amps?
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Posted by Mikepier on December 1, 2006, 12:40 pm
BobH wrote:
> I am changing a 50-amp breaker to a 30-amp one to install an oven that
> draws less current than the old one did. I have seen information here
> about testing a bad circuit breaker, but how do you test a good one? In
> other words, if I install a new breaker, how do I know it will trip if
> the load exceeds 30 amps?
Other than shorting both legs of the 220 line and creating an
impressive spark, you just assume, as the rest of us, that the breaker
works, and chances are that it will.
What is the current draw on your new oven at full load?
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Posted by CJT on December 1, 2006, 12:47 pm
BobH wrote:
> I am changing a 50-amp breaker to a 30-amp one to install an oven that
> draws less current than the old one did. I have seen information here
> about testing a bad circuit breaker, but how do you test a good one? In
> other words, if I install a new breaker, how do I know it will trip if
> the load exceeds 30 amps?
>
Put a >30 amp load on the circuit?
--
The e-mail address in our reply-to line is reversed in an attempt to
minimize spam. Our true address is of the form che...@prodigy.net.
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Posted by Steve Barker LT on December 1, 2006, 12:59 pm
The breaker is there to protect the wiring, not the appliance. And there's
no need to check them.
--
Steve Barker
>I am changing a 50-amp breaker to a 30-amp one to install an oven that
> draws less current than the old one did. I have seen information here
> about testing a bad circuit breaker, but how do you test a good one? In
> other words, if I install a new breaker, how do I know it will trip if
> the load exceeds 30 amps?
>
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Posted by on December 1, 2006, 1:14 pm
BobH wrote:
> I am changing a 50-amp breaker to a 30-amp one to install an oven that
> draws less current than the old one did. I have seen information here
> about testing a bad circuit breaker, but how do you test a good one? In
> other words, if I install a new breaker, how do I know it will trip if
> the load exceeds 30 amps?
There is no need to change the breaker to match the load, as long as
all the associated wiring is rated for 50A.
Dave
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