Switched neutral in 200amp 1 ph disco

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Sierrasparky

Senior Member
Location
USA
Occupation
Electrician ,contractor
Is it proper to switch the neutral wires along with the ungrounded wires in a disconnect for a 200 amp feeder to a remote building? The old disco burned up one leg and all that seems to be available is a new 3 pole NON fused unit at 200 amps 120/240. It seems weird to disconnect the nuetral.
 

Cow

Senior Member
Location
Eastern Oregon
Occupation
Electrician
If the neutral is already broken it'd be cheaper to land it in the lugs and switch it rather than buying a $25 insulated tap. Switched neutrals are pretty unorthodox though, so me personally, I'd still use the ins. tap.
 

Sierrasparky

Senior Member
Location
USA
Occupation
Electrician ,contractor
I was asking because the old burned switch had the neutral switched and it seemed odd to me.
 

KevinVost

Senior Member
Location
Las Vegas
From 2008 NEC - 404.2 (B) check the exception. Can't you just run the grounded through without termination at the switch?

You can switch the grounded, check the section I listed. It is unusual, but as long as the grounded and ungrounded disconnect at the same time it is allowed.
 
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