Desired set-up:

Light fixture outside front door is on Breaker 1 and controlled by a
single switch inside the front door.

Light fixture over garage door is on Breaker 2 and controlled by two 3-
way switches - one in the garage and one inside the front door.

Can the single switch and a 3 way be installed in the same box even
though they are on different circuits?

Do the breakers have to be ganged if this done?

Thanks!

On Sep 18, 11:20*am, DerbyDad03 wrote:
Desired set-up:

Light fixture outside front door is on Breaker 1 and controlled by a
single switch inside the front door.

Light fixture over garage door is on Breaker 2 and controlled by two 3-
way switches - one in the garage and one inside the front door.

Can the single switch and a 3 way be installed in the same box even
though they are on different circuits?

Do the breakers have to be ganged if this done?

Thanks!

Is there enough room in the box? If so, why not share a box? Just
don't mix the wires up if you have to move them.

Desired set-up:

Light fixture outside front door is on Breaker 1 and controlled by a
single switch inside the front door.

Light fixture over garage door is on Breaker 2 and controlled by two 3-
way switches - one in the garage and one inside the front door.

Can the single switch and a 3 way be installed in the same box even
though they are on different circuits?


*Yes. You may want to label the wires for the next guy.



Do the breakers have to be ganged if this done?


*No.

"DerbyDad03" wrote in message
...
Desired set-up:

Light fixture outside front door is on Breaker 1 and controlled by a
single switch inside the front door.

Light fixture over garage door is on Breaker 2 and controlled by two 3-
way switches - one in the garage and one inside the front door.

Can the single switch and a 3 way be installed in the same box even
though they are on different circuits?

Do the breakers have to be ganged if this done?

Thanks!

Not unless they are part of a multiwire branch circuit, and the installation
is to conform to 2008 Nec, which has nothing to do with multiple circuits
being in the same box per se.

On Sep 18, 2:44*pm, "RBM" wrote:
"DerbyDad03" wrote in message

...

Desired set-up:

Light fixture outside front door is on Breaker 1 and controlled by a
single switch inside the front door.

Light fixture over garage door is on Breaker 2 and controlled by two 3-
way switches - one in the garage and one inside the front door.

Can the single switch and a 3 way be installed in the same box even
though they are on different circuits?

Do the breakers have to be ganged if this done?

Thanks!

Not unless they are part of a multiwire branch circuit, and the installation
is to conform to 2008 Nec, which has nothing to do with multiple circuits
being in the same box per se.

Thanks to all!

On 9/18/2010 12:20 PM, DerbyDad03 wrote:
Desired set-up:

Light fixture outside front door is on Breaker 1 and controlled by a
single switch inside the front door.

Light fixture over garage door is on Breaker 2 and controlled by two 3-
way switches - one in the garage and one inside the front door.

Can the single switch and a 3 way be installed in the same box even
though they are on different circuits?

Do the breakers have to be ganged if this done?

Thanks!
After reading the many responses, one
thing came to my mind and I am not sure
how the code handles it. I know if you
have 2 circuits in a "raceway" of
different sizes (different breaker
amperage), I seem to remember that all
have to be treated as the higher
amperage. Does that apply here?
Anyway, might be a mute point if they
are both 15 amps or both 20 amps. Any
code experts?

"Art Todesco" wrote in message
...
On 9/18/2010 12:20 PM, DerbyDad03 wrote:
Desired set-up:

Light fixture outside front door is on Breaker 1 and controlled by a
single switch inside the front door.

Light fixture over garage door is on Breaker 2 and controlled by two 3-
way switches - one in the garage and one inside the front door.

Can the single switch and a 3 way be installed in the same box even
though they are on different circuits?

Do the breakers have to be ganged if this done?

Thanks!
After reading the many responses, one thing came to my mind and I am not
sure how the code handles it. I know if you have 2 circuits in a
"raceway" of different sizes (different breaker amperage), I seem to
remember that all have to be treated as the higher amperage. Does that
apply here? Anyway, might be a mute point if they are both 15 amps or both
20 amps. Any code experts?

I think you're thinking voltage rating of conductors, not amperage

On 9/18/2010 11:20 AM, DerbyDad03 wrote:
Desired set-up:

Light fixture outside front door is on Breaker 1 and controlled by a
single switch inside the front door.

Light fixture over garage door is on Breaker 2 and controlled by two 3-
way switches - one in the garage and one inside the front door.

Can the single switch and a 3 way be installed in the same box even
though they are on different circuits?

Do the breakers have to be ganged if this done?

Thanks!

yes and no.

--
Steve Barker
remove the "not" from my address to email