We end up with lots of instant hot water heaters under the cabinets. The latest one is 60A, 208V. NEC 422.31(B) requires a disconnect for permanently wired appliances. As a 60A disconnect does't always fit in, the only option I know of is a locking device on the circuit breaker. Any ideas?
Disconnect for Instahot
- Thread starter nvcape
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kelley
Member
- Location
- Massachusetts
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- Estimator
Re: Disconnect for Instahot
I know that u said permanently wired, but how about making up a twist lock recepatcle set up?
I know that u said permanently wired, but how about making up a twist lock recepatcle set up?
tonyi
Senior Member
Re: Disconnect for Instahot
How about putting a pullout on the wall next to the panel. This sort of unit doesn't appear to have an explicit disconnect location requirement like an A/C would.
You can only use the breaker if its within sight of the unit being served - not too many panels will be in this position...
How about putting a pullout on the wall next to the panel. This sort of unit doesn't appear to have an explicit disconnect location requirement like an A/C would.
Re: Disconnect for Instahot
Kelly: 422.16 permits cords where the appliance is for "ready removal." These things are plumbed, so not sure can use a cord; will need to check further.
Tonyi: Code says you can have a remote switch or breaker if it can be locked open; still think this may be least cost and least problem.
Kelly: 422.16 permits cords where the appliance is for "ready removal." These things are plumbed, so not sure can use a cord; will need to check further.
Tonyi: Code says you can have a remote switch or breaker if it can be locked open; still think this may be least cost and least problem.
ryan_618
Senior Member
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- Salt Lake City, Utah
Re: Disconnect for Instahot
[ October 29, 2003, 07:45 PM: Message edited by: ryan_618 ]
[ October 29, 2003, 07:45 PM: Message edited by: ryan_618 ]
electricmanscott
Senior Member
- Location
- Boston, MA
Re: Disconnect for Instahot
Ryan is speechless.
Ryan is speechless.
ryan_618
Senior Member
- Location
- Salt Lake City, Utah
Re: Disconnect for Instahot
Originally posted by electricmanscott:
Ryan is speechless.
tonyi
Senior Member
Re: Disconnect for Instahot
With the 60A pullout, there's only one thing you have to stock because you know its compatible with everything being an external unit. The supposed universal lockouts really aren't - QO's, FPE's(ugh!) are all gonna be different than the GE/Murray/BR format breakers.
An Idesco (somewhat)universal 2-pole lockout looks to be about the same price as a C/H unfused 60A pullout, maybe a dollar difference or so. I'd bet there's a lot better chance of a service guy actually using the pullout disco than a lockout
With the 60A pullout, there's only one thing you have to stock because you know its compatible with everything being an external unit. The supposed universal lockouts really aren't - QO's, FPE's(ugh!) are all gonna be different than the GE/Murray/BR format breakers.
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