This is a metal box it should be grounded. When you attach the switch to the box it will be grounded in a code compliant way so no you don’t have to tie the ground to the switch.
Is ground required for dimmer switch?
Grounding light switches have become commonplace, used as a preventative safety measure. It is perfectly legal to wire a light switch without the inclusion of a ground. Dimmers will require a ground wire but traditional toggle-type switches will not. Omitting a ground wire on any switch is not recommended.
How do you ground a light switch without a ground wire?
If you do not have that third wire for the ground you don't have to worry about it you don't have a ground wire to connect. This which will operate normally.
Are dimmer switches allowed in bathrooms?
1. Replace your wall switch with a dimmer switch. Because of the Building Regulations and the IP protection in the bathrooms, it is not possible to have a wall switch inside the bathroom; however, the wall light switch outside the bathroom can be replaced with a dimmer switch.
Can I install a dimmer without ground wire?
Tip. In an older home, you may encounter a switch box that has no ground wire. In that case, an exception in article 404.9(B) of the current National Electric Code (NEC) allows a dimmer without a connecting ground wire to still be installed if it is a replacement.
What if there is no ground wire in switch?
Quote from the video:
If you don't have a ground wire. So again older homes might not have a ground wire newer homes do newer light switches definitely have a ground wire place to connect a ground wire to older.
What if your light switch does not have a ground wire?
Going without a ground wire
When you screw the light switch in, it will make contact with the box, and as long as the box is grounded, it will pick up ground that way. If the box isn’t grounded, the switch will still work.
How do you add a ground to a light switch?
Quote from the video:
Okay so you got to kind of like that you'll have to play with that a little bit if. It's too much you can put it back in there you can bend it a little bit and vice versa.
