Water heater

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Jim W in Tampa

Jim W in Tampa

Senior Member
Location
Tampa Florida
Do think the switch must be no higher than 6' 6" if it is to serve as disconnect.
You could put breaker lockout on this and not need the switch. The romex is subject to damage. I use to put a 90 and carflex on the romex whips. It will need straped in the wall but assume you already did that.




'
 
V

Volta

Senior Member
Location
Columbus, Ohio
Cavie said:
Yes. That is the purpose of the switch being there. There is no requirement as to how high. "Accessable" is an issue. The unprotected RX is not to code nor is the plastic bushing. Other than that it's good to go.
Click to expand...

I agree with Jim, it can't be over 6'7" these days 404.8(A). Subject to damage is sibject to interpretation. I don't think it is a bushing, but rather a non-metallic connector.

It should be strapped within 12 inches of the connector 334.30.

Hopefully this is a residence, otherwise the NM cable shouldn't be seen at all 334.10(3).
 
Dennis Alwon

Dennis Alwon

Moderator
Staff member
Location
Chapel Hill, NC
Occupation
Retired Electrical Contractor
I have used DP 30 amp switches before but it is a bear to get the number 10's and the switch into the box. I now use a/c disconnects.
 
kwired

kwired

Electron manager
Location
NE Nebraska
Volta said:
I agree with Jim, it can't be over 6'7" these days 404.8(A). Subject to damage is sibject to interpretation. I don't think it is a bushing, but rather a non-metallic connector.
Click to expand...


Exception No. 2: Switches and circuit breakers installed adjacent to motors, appliances, or other equipment that they supply shall be permitted to be located higher than 2.0 m (6 ft 7 in.) and to be accessible by portable means
Click to expand...

What if this water heater were located 12 feet above the floor (or even more) and disconnnect switch was right next to the unit? Works for me. I like to have switch right next to equipment that is elevated. If you are there trying to service it, it saves several trips up and down a ladder sometimes just to be able to turn on and off for troubleshooting purposes.
 
Jim W in Tampa

Jim W in Tampa

Senior Member
Location
Tampa Florida
"Exception No. 2: Switches and circuit breakers installed adjacent to motors, appliances, or other equipment that they supply shall be permitted to be located higher than 2.0 m (6 ft 7 in.) and to be accessible by portable means "
The switch shown here is not adjacent in my opinion.
 
kwired

kwired

Electron manager
Location
NE Nebraska
Jim W in Tampa said:
"Exception No. 2: Switches and circuit breakers installed adjacent to motors, appliances, or other equipment that they supply shall be permitted to be located higher than 2.0 m (6 ft 7 in.) and to be accessible by portable means "
The switch shown here is not adjacent in my opinion.
Click to expand...


Why is it not adjacent?

From the picture we really do not know how high it is either. If this were a 20 gallon water heater that switch may only be 4 feet above the floor.

At the right side of the photo appears to be a door jamb. Assuming 84 inch tall door as is common it looks like this should be 6' 7" high or less.
 
Dennis Alwon

Dennis Alwon

Moderator
Staff member
Location
Chapel Hill, NC
Occupation
Retired Electrical Contractor
If we use 404.8(A) then we must look at the exception.

Exception No. 2: Switches and circuit breakers installed adjacent to motors, appliances, or other equipment that they supply shall be permitted to be located higher than 2.0 m (6 ft 7 in.) and to be accessible by portable means.
Click to expand...
 
Jim W in Tampa

Jim W in Tampa

Senior Member
Location
Tampa Florida
kwired said:
Why is it not adjacent?

From the picture we really do not know how high it is either. If this were a 20 gallon water heater that switch may only be 4 feet above the floor.

At the right side of the photo appears to be a door jamb. Assuming 84 inch tall door as is common it looks like this should be 6' 7" high or less.
Click to expand...

Adjacent means beside not above.
As to OP this looks like typical 40 gal that is about 48 inches. Add the pipes and then look at wall. This might fall within 6' 7" or it might not.
Now since this is the disconnect lets talk about 110.26
 
N

neutral

Senior Member
Location
Missouri
Jim W in Tampa said:
Adjacent means beside not above.
As to OP this looks like typical 40 gal that is about 48 inches. Add the pipes and then look at wall. This might fall within 6' 7" or it might not.
Now since this is the disconnect lets talk about 110.26
Click to expand...

ad?ja?cent (-jsnt)
adj.
1. Close to; lying near: adjacent cities.
2. Next to; adjoining: adjacent garden plots.

--------------------------------------------------------------------------------
above would qualify as adjacent.
 
iwire

iwire

Moderator
Staff member
Location
Massachusetts
neutral said:
I did and I didn't see anything that would prevent the placement of the switch above the heater in the 2008 book, but you can point out what i might have missed.
charlie
Click to expand...

110.26(A), there is no working space for this disconnecting means.

I am not convinced 110.26 applies to this switch but if it does we have a violation.
 
N

neutral

Senior Member
Location
Missouri
iwire said:
110.26(A), there is no working space for this disconnecting means.

I am not convinced 110.26 applies to this switch but if it does we have a violation.
Click to expand...

I agree.

from 110.26
other equipment that is associated
with the electrical installation and is located above or below
the electrical equipment shall be permitted to extend
not more than 150 mm (6 in.) beyond the front of the
electrical equipment.

would this not apply? If the switch didn't extend past the front of the heater 6"? I believe the toggle is only 1/2 to 3/4 "
 
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