Lighting switch

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luckylerado

luckylerado

Senior Member
Location
Lake of the Ozarks
tomito said:
I have a 208 V LED lighting circuit, can I use a 120/277 V lighting switch to control this luminaires? like this one...
http://www.leviton.com/OA_HTML/ProductDetail.jsp?partnumber=5601-I&section=47084&minisite=10251

What do you recommend if I can't and what part of NEC forbid it?

Thank you
Tom
Click to expand...

I believe that you will need a double pole switch for 208 since there is no grounded conductor. I am sure there is a better reference (410 maybe) but for lack of time I would point to
404.15
(B) Off Indication. Where in the off position, a switching
device with a marked OFF position shall completely disconnect
all ungrounded conductors to the load it controls.
 
jumper

jumper

Senior Member
Location
3 Hr 2 Min from Winged Horses
luckylerado said:
I believe that you will need a double pole switch for 208 since there is no grounded conductor. I am sure there is a better reference (410 maybe) but for lack of time I would point to
404.15
(B) Off Indication. Where in the off position, a switching
device with a marked OFF position shall completely disconnect
all ungrounded conductors to the load it controls.
Click to expand...

Decora switches do not have a marked OFF position, so I am gonna say nope.:)
 
T

tomito

Member
Location
Mexico
I guess it's not permitted for not disconnecting all the ungrounded conductors but, if its not marked with the off position, perhaps is not necessary to disconnect all the ungrounded conductors? :?

Tom
 
jumper

jumper

Senior Member
Location
3 Hr 2 Min from Winged Horses
tomito said:
I guess it's not permitted for not disconnecting all the ungrounded conductors but, if its not marked with the off position, perhaps is not necessary to disconnect all the ungrounded conductors? :?

Tom
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The switch may be just a control, not the disconnecting means, so switching all ungrounded conductors would not necessarily be required here. Many photocells only switch one leg of 208/240/480 single phase lighting.
 
roger

roger

Moderator
Staff member
Location
Fl
Occupation
Retired Electrician
jumper said:
The switch may be just a control, not the disconnecting means, so switching all ungrounded conductors would not necessarily be required here. Many photocells only switch one leg of 208/240/480 single phase lighting.
Click to expand...
Agreed

Roger
 
T

tomito

Member
Location
Mexico
jumper said:
The switch may be just a control, not the disconnecting means, so switching all ungrounded conductors would not necessarily be required here. Many photocells only switch one leg of 208/240/480 single phase lighting.
Click to expand...

And the disconnecting means will be the TMB at the panelboard? So can I use this switch or do I have to talk with an inspector?

Tom
 
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