insta hots

[101010]

I have a 2 pole 40 amp insta hot. What type disconnect would you use? I have a deep 1900 and single gang cover. would you use breaker lock, 2 pole 40 amp toggle switch , 50 amp outlet and sj cord?

 

[JohnJ0906]

I have a 2 pole 40 amp insta hot. What type disconnect would you use? I have a deep 1900 and single gang cover. would you use breaker lock, 2 pole 40 amp toggle switch , 50 amp outlet and sj cord?

I think I would use a breaker lock.
Out of curiosity, where is that installed?

 

[101010]

Under sinks commercial bathroom

 

[Buck Parrish]

I too, would use the breaker lock.

 

[Dennis Alwon]

I would use a simple a/c disconnect.

 

[infinity]

I would use a simple a/c disconnect.

That would work, but for almost all of the commercial insta-hots that I've installed they've always been 277 volts.

 

[Dennis Alwon]

That would work, but for almost all of the commercial insta-hots that I've installed they've always been 277 volts.

Why would that matter?

 

[infinity]

Why would that matter?

When I think of a simple A/C disconnect I see one that's only rated up to 250 volts.

 

[Dennis Alwon]

When I think of a simple A/C disconnect I see one that's only rated up to 250 volts.

I guess I thought they were rated 300v but you are prob. correct.

 

[Karl H]

I almost always use a breaker lock-out.

 

[augie47]

I almost always use a breaker lock-out.

I would also, but, I have always felt like the breaker locks were a real NEC "cop out" for equipment which requires servicing or testing. If you were working on that equipment and lets say replacing the metal cover near open terminals, how may electricians are going to walk to the other end of the building and lock the breaker out. If there was a pull-out/switch there, you would be far more likely to turn it off. If the CODE is "safety", breaker locks should not have snuck in, IMHO (90E probably makes that a mute point now)

 

[infinity]

Augie what is 90E and what about 90E makes the whole breaker lock point moot? Did you mean 70E?

 

[hardworkingstiff]

That would work, but for almost all of the commercial insta-hots that I've installed they've always been 277 volts.

What kind of wattage? (or amperage).

 

[augie47]

Augie what is 90E and what about 90E makes the whole breaker lock point moot? Did you mean 70E?

yes, my brain would not focus this morning.

 

[Dennis Alwon]

I would also, but, I have always felt like the breaker locks were a real NEC "cop out" for equipment which requires servicing or testing.

I agree and I have never used one.

 

[Karl H]

I would also, but, I have always felt like the breaker locks were a real NEC "cop out" for equipment which requires servicing or testing. If you were working on that equipment and lets say replacing the metal cover near open terminals, how may electricians are going to walk to the other end of the building and lock the breaker out. If there was a pull-out/switch there, you would be far more likely to turn it off. If the CODE is "safety", breaker locks should not have snuck in, IMHO (90E probably makes that a mute point now)

Augie you have a very good point. When dealing with the larger Insta-hots
40a.In most cases there simply isn't enough room for a fused or non-fused
disconnect. I do like the recept idea though. The way I look at it
I give the service guy a choice. I clearly label the access panel of the
Insta-hot with a P-Touch label that informs the service guy as to
the location of the panel,what floor,room,panel, circuit number,and
that it is equipped with a breaker lock-out device. If the service guy still
chooses to work it hot, that's his/her choice.