disconnect switch requirement

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Jay Pai

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I have a single phase 208V, 60A application (water heater). I am feeding heater from a panelboard not in sight of heater (2 pole, 60A breaker). Do I need to provide a non-fused disconnect at the water heater by code?

I am assuming that there is no lockable switch on the water heater and this would be a hard wire connection.
 
Re: disconnect switch requirement

if there is no switch, lockable or not, on the waterheater. 422.31 allows you to use a lockable switch that is out of sight as a disconnect. You might want to read that article for more specific wording.

sidebar: I personally dislike this. I think the ability to switch the heater on and off during servicing is important. Dang few people are going to go back and forth to a remote disconnect.

[ February 12, 2006, 09:03 AM: Message edited by: augie47 ]
 
Re: disconnect switch requirement

This sounds A bit like my situation with A 150A booster heater. Do I really need A disconnect within sight? Since this is A wet area the disconnect is about $300.
 
Re: disconnect switch requirement

Originally posted by augie47:
if there is no switch, lockable or not, on the waterheater. 422.31 allows you to use a lockable switch that is out of sight as a disconnect. You might want to read that article for more specific wording.

sidebar: I personally dislike this. I think the ability to switch the heater on and off during servicing is important. Dang few people are going to go back and forth to a remote disconnect.
Click to expand...
I read the article, I am leaning towards directing the contractor to place a lock on the breaker.
 
Re: disconnect switch requirement

Originally posted by justin7:
This sounds A bit like my situation with A 150A booster heater. Do I really need A disconnect within sight? Since this is A wet area the disconnect is about $300.
Click to expand...
Really??? I just got a quote for under $250 for a 3-phase, 200-amp fused switch, 3R enclosure, service-rated.
 
Re: disconnect switch requirement

Just because the tank holds water dose that make the area wet location? :confused:
 
Re: disconnect switch requirement

Actually this has to do with my dishroom disconnect post.
Maybe this is a damp location and not a wet location however they are installing a sprayer to wash down the walls and floor of this dishroom.
Also the reason the price was around $300 was probably because it was A square d.
 
Re: disconnect switch requirement

"Maybe this is a damp location and not a wet location however they are installing a sprayer to wash down the walls and floor of this dishroom."


that is a good reason to call this a wet location.
 
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