Go Back  DoItYourself.com Community Forums > Electrical, AC & DC. Electronic Equipment and Computers > Electrical - AC & DC
Reload this Page >

Single Pole Switch with 3 Wires - Not sure which one is ground?

Single Pole Switch with 3 Wires - Not sure which one is ground?

Reply

  #1  
Old 09-12-15, 08:54 PM
Member
Thread Starter
Join Date: Sep 2015
Posts: 9
Single Pole Switch with 3 Wires - Not sure which one is ground?

I am trying to replace a single pole switch with 3 wires (2 black and 1 grey), however I am not sure which one is the ground and which one is the live feed. See the attached pictures. I am trying to replace this switch with a dimmer switch. How do I wire in the dimmer switch?
 
Attached Images   
Sponsored Links
  #2  
Old 09-12-15, 09:23 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: NJ - USA
Posts: 43,439
Welcome to the forums.

Connect the two black wires on the old switch to the black wire of the new switch.
Connect the gray wire on the old switch to the red wire on the new switch.
Cap off the red/white wire so it can't short out. It won't be used.

You could connect the green to a bare wire if there is one in the box. If not.....cap it off so that it can't short to anything. The switch will be grounded thru the mounting screws to the metal box.
 
  #3  
Old 09-13-15, 04:55 AM
pcboss's Avatar
Forum Topic Moderator
Join Date: Jul 2002
Location: Maryland
Posts: 14,354
Grounds need to be green, green with a yellow stripe or bare.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'