minimum disconnect height

[Praedatus1]

hey guys, is there a minimum height for disconnects and breakers? I know the maximum mounting height is 6'-7", but is there a minimum mounting height? I think its 4' for meters, but what about a disconnect handle or breaker?
thanks,
Tim

 

[Pierre C Belarge]

There is no NEC minimum height. There may be local codes though. If you like, you could install the bottom of the panel on the floor.

 

[dcspector]

Along with pierre as long as it is not a Mobile Home, Manuf, etc, Min is 24" per 550.11(A)

 

[Praedatus1]

spot on as always guys, thanks.

 

[George Stolz]

Also, utilities often require the meter to be at around 5.5' to center, which will dictate how high your service disconnect is, if it is integral with the meter.

 

[masterinbama]

Our local POCO specs say eye level for meter installations. I had a guy working for me that was 6' 11" I had to remind him eye level didn't apply to him.

 

[dcspector]

I had a guy working for me that was 6' 11"

I bet you saved a fotune in ladders eh?

 

[masterinbama]

He could stand flat footed and drop troffers in a 8' ceiling.

 

[480sparky]

This passed for an AC. I didn't rough this house in, but I sure made a stink about it when I had to trim it out.

The guys who roughed this is were apparently too lazy to go outside and drill a hole at a respectable height, so they just drilled out from the basement through the rim joist. I ended up laying on the ground to wire it up.

 

[dcspector]

Ken that is ridiculous. Sorry you got stuck with it. I guess the code section 440.14 should mention snow drifts rendering the disconnect "not being readily accessible" IMO...only.

 

[acrwc10]

This passed for an AC. I didn't rough this house in, but I sure made a stink about it when I had to trim it out.

The guys who roughed this is were apparently too lazy to go outside and drill a hole at a respectable height, so they just drilled out from the basement through the rim joist. I ended up laying on the ground to wire it up.

If that is how they roughed in it is easy to see why they didn't do the trim out.

 

[G0049]

I guess the code section 440.14 should mention snow drifts rendering the disconnect "not being readily accessible" IMO...only.

Although, not many folks need access to their A/C discos when the snow starts to pile up

 

[dcspector]

Although, not many folks need access to their A/C discos when the snow starts to pile up

LMAO.......good point!

 

[charlie]

. . . but is there a minimum mounting height? . .

For what it is worth, there was a proposal to CMP-10 to set a minimum height and it was turned down in the panel meeting. We have not gotten our written ballot yet so we don't have an official vote.

In the comment stage, you guys may want to make comments about the panel's rejection if you wish to have a minimum height. If you haven't made a proposal, you will have to contact the NFPA to get a FREE copy of the ROP (report on proposals).