Wiring a switch & 110.3(B)

jxofaltrds

Senior Member
Location
Mike P. Columbus Ohio
Occupation
ESI
Want to have some fun?

Hand the instructions for wiring a switch to one of your employees and see what they say. LOL :lol:

See if they wire per the diagram or actually read the instructions. :slaphead:

Leviton

Lineloadanaswitch.JPG
 

jim dungar

Moderator
Staff member
Location
Wisconsin
Occupation
Retired Electrical Engineer - Power Systems
The instructions clearly say that the "BLACK (Hot)" conductor may be attached to either the top or bottom screw, even if the diagram shows otherwise.
The only typical trip up, I see, might be the insulation strip length.
 
Last edited:

augie47

Moderator
Staff member
Location
Tennessee
Occupation
State Electrical Inspector (Retired)
If you run across a "switch leg" where one conductor of your cable is white do you go back to the store for a different switch ?:)
 

iceworm

Curmudgeon still using printed IEEE Color Books
Location
North of the 65 parallel
Occupation
EE (Field - as little design as possible)
I'm waiting for the punchline - I'm clueless

Today - abut this and a few others. Different list for tomorrow.

ice
 

GoldDigger

Moderator
Staff member
Location
Placerville, CA, USA
Occupation
Retired PV System Designer
I'm waiting for the punchline - I'm clueless
Just that the text requires that you have two black wires, while the illustration requires that the wire connected to the load be black while the other, source wire could be any color.
Neither of those situations are necessary for a code compliant installation.
In addition to re-identified white wires in a switch leg, the ungrounded conductors in question could be red or blue or any other non-reserved color.

And, yes Augie, if you could not change the wire colors you would have to go back an buy a different switch to comply with 110.3(B).
 

iceworm

Curmudgeon still using printed IEEE Color Books
Location
North of the 65 parallel
Occupation
EE (Field - as little design as possible)
Just that the text requires that you have two black wires, while the illustration requires that the wire connected to the load be black while the other, source wire could be any color. ....
Ah - got it - tkx.
Note to the worm: Quick - plug ears to prevent humor from escaping:slaphead:

ice
 

fmtjfw

Senior Member
I believe the instructions are for the layman. See the second warning. It also says to be installed according to electrical codes. That would be enough for me to to apply the exceptions and different colors from NEC.
 
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