31Amps on a 30 Amp Breaker
- Thread starter BOBCMD1
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Sierrasparky
Senior Member
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- USA
- Occupation
- Electrician ,contractor
I seem to recall somewhere in the code that you canput a 31 Amp circuit on a 30 amp breaker. I have a Battery Charger that the name plate rating is 31 Amps @ 240 Volt 1?. Just want to confirm weather to use 30, 35, 40 Amp Breaker.
That would be true. Go with the 40 amp breaker and wire
welcome to the forum.
- Location
- Logan, Utah
Welcome to the forum.
Take a look at 210.20(A).
Chris
Take a look at 210.20(A).
Chris
I'm hard pressed to state it's a Code violation, someone else may know what Article, but I don't know why you would want to. The conductor must be sized to the load and any breaker sized below the load would just be a looking for trouble. If the battery charger operates at full load for 3 hours or more, it would be considered a "continuous load" and your load would be calculated as 39 amps.I seem to recall somewhere in the code that you canput a 31 Amp circuit on a 30 amp breaker. I have a Battery Charger that the name plate rating is 31 Amps @ 240 Volt 1?. Just want to confirm weather to use 30, 35, 40 Amp Breaker.
Were it mine, I'd go with a #8 on a 40 amp breaker
edit: Thanks Chris...I thought it should be there, but I missed it. My hats off
Sierrasparky
Senior Member
- Location
- USA
- Occupation
- Electrician ,contractor
Take a look at 210.23 also.
Permissable loads . in no case shall the load exeed the branch cicuit ampere rating.
Permissable loads . in no case shall the load exeed the branch cicuit ampere rating.
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