Working space/mounting requirement for manual transfer switches (quick question)

Hello,

So, I couldn't really find any specific details on this, but, are there any provisions around the working space for a manual transfer switch, where the switch handle on the exterior of the box needs to be accessible?

I have two of these to install, surface mount.

The normal working spare requirements (30" wide, 3ft in front of, 6.5ft height) are all simple, I'm just curious how close the handle can be to the other transfer switch. I'm guessing sufficient room for operation plus a few inches at a minimum.

Additionally, I was planning on mounting this to exposed studs on the unfinished side of an interior wall of a finished basement (large utility room area). Is this allowed, or do I need to put some plywood up first? Couldn't find any details on this either...

Thanks in advance!

 

Operating room plus a few inches is fine. Make sure you can get the cover open without hitting the handle of the one next to it.

Plywood on the studs would be the recommended way to mount the switches.

 

Thanks.

The covers are hinged on the top of the boxes, so that shouldn't be an issue. I plan on mounting them high enough where I can stand underneath the open covers on the transfer switches, also.

 

Any operating mechanism like a handle or breaker cannot be higher than 6'-7" to the center.

 

Yeah, that shouldn't be an issue. The top of the box should land around 6'2" off the floor, which should put the center of the handle around 4'8" from the floor.

Thanks!