Disconnect
- Thread starter brinzoj
- Start date
- Status
- Location
- Lockport, IL
- Occupation
- Retired Electrical Engineer
Re: Disconnect
I'm confused.
Why would a 120 volt machine need a 3-pole disconnect? But to answer (what I think is) your question, you cannot switch the neutral. Yes, 404.2(B) applies.
I'm confused.
Why would a 120 volt machine need a 3-pole disconnect? But to answer (what I think is) your question, you cannot switch the neutral. Yes, 404.2(B) applies.
- Location
- Illinois
- Occupation
- retired electrician
Re: Disconnect
The exception to 404.2(B) will permit the grounded conductor to be opened by the disconnect.
Don
The exception to 404.2(B) will permit the grounded conductor to be opened by the disconnect.
Don
petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- engineer
Re: Disconnect
its not unusual to see a 120V device with a three pole disconnect. you just don't use all the poles.
I might be inclined to wire the neutral through the disconnect in such a case.
[ August 16, 2005, 11:30 AM: Message edited by: petersonra ]
its not unusual to see a 120V device with a three pole disconnect. you just don't use all the poles.
I might be inclined to wire the neutral through the disconnect in such a case.
[ August 16, 2005, 11:30 AM: Message edited by: petersonra ]
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Re: Disconnect
I wouldn't; I'd take the 3-phase switch and replace it with a single-pole one, and keep the 3-pole one for when I need it.
I wouldn't; I'd take the 3-phase switch and replace it with a single-pole one, and keep the 3-pole one for when I need it.
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