switching with mc
- Thread starter laketime
- Start date
- Status
- Location
- Logan, Utah
Take a look at 200.7(C)(2) for the use of a white conductor for switching in a cable assembly.
Chris
Chris
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Hint: Think about what you'd do if it was a 12/2 to a single switch.
Not enough information. Are you switching two loads with a single 12/3? Is one load switched and another one always hot? Is this the only MC in the box?
MMM what is a 2 gang switch i wonder
I'd reckon a 2-gang box with a pair of single pole switches in it.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
He's talking about a switch loop, or rather, a pair of switch loops using a single 3-conductor cable.
One feed, two legs, no neutral, only cable to box.
electricalperson
Senior Member
- Location
- massachusetts
if you have 2 switches 1 wire can be a feed and the other 2 are your switchlegs to the lights if they are dead end. if they are a 12/3 switchleg for switching 2 ballasts for example, the white is your neutral and the black is one switch and the red is the other. feed is a 12/2 in the box
Mark the white as an ungrounded at both ends [200.7(C)(2)]. Pigtail it to both switches. Red & black are the return switch loops.
laketime
Senior Member
What I mean is a box with two single pole switches. switch a-switches 1 set of lights, switch b-switches a 2nd set of lights. I want to feed/return the switches with a 12/3. so i would have one black, one red, and one white in the switch box. which wire would i use for a hot and which for the switch legs? 200(c)(2) seems to say i would use the white as a hot to the switch (have to identify it at each end) and the red and the blacks for the switch legs.
- Location
- Logan, Utah
Yes, you are correct. The white would be required to be the feed to the switches and be re-identified at both locations.
Chris
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Well, we know you know. :roll: We were trying to get the OP to look ikt up for himself.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Correctamundo. I prefer using blue when recoloring white, just to avoid two blacks (or reds).
Most people use tape, but I prefer using a Sharpie, which makes color selection easier, too.
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
very common for a paddle fan, we call them a dead end switch's, hot fed down a remarked white the red back to light and black back to fan motor.
byourdesky
Member
- Location
- vista,ca
I've heard of them called Suicides and California Hots as well.........just saying:smile:
- Location
- Massachusetts
WOW! 16 posts to say what 200.7(C)(2) says pretty clearly. :roll:
- Location
- Massachusetts
- Status