hard wiring still allowed for gd and dw?

[GerryB]

A friend is telling me you can't wire the garbage disposal with a wall switch and a piece of romex (neatly run and secured) in the cabinet under the sink. He says you need an outlet and a cord or protection for the cable, or mc cable (which is still subject to physical damage). I don't see the code saying that, although I've heard of some towns doing that. 422.16 doesn't require a cord but says it "shall be permitted"). Comments

 

[infinity]

Unless it's interpreted to be subject to physical damage then you can use NM, I would use a cord. Hard wired DW's will require a disconnect or breaker lockout.

 

[Adamjamma]

I have seen stoves and garbage disposals both hardwired and plug wired. But I have never, so far, run across a dishwasher hard wired. Not sure I would like to, either.
Luckily, most of the dishwashers and garbage disposals I have put in have plugs on them already. Just wondering though, do they make fuses in the USA like we use on some switches over here? My dishwasher here is on a DP fused switch... so I can pull the switch fuse out and it is locked off until I replace the fuse... even though I still install my lockout on the breaker...

 

[MAC702]

...do they make fuses in the USA like we use on some switches over here? My dishwasher here is on a DP fused switch... so I can pull the switch fuse out and it is locked off until I replace the fuse... even though I still install my lockout on the breaker...

Never seen one here.

 

[LarryFine]

But I have never, so far, run across a dishwasher hard wired.

I have never seen one wired any other way.

 

[JFletcher]

I have never seen one wired any other way.

Me either. Never seen a local disconnect for one either, so I presume they don't need one. Come to think of it, I don't even remember seeing a breaker lock on a dishwasher circuit. Maybe it's a Virginia exception, maybe I haven't worked on a lot of newer stuff to notice... Maybe a case of CRS.

 

[Adamjamma]

Or maybe it is beapcause all the ones I have dealt with electrically you push under the counter.. or can leave out against a wall...and often times the customer puts the hose in the sink...

 

[romex jockey]

422.16 covers disposals, dishwahers, compactors, range hoods, and cooking units

422.31, both A and B dictate the following>

where the switch or circuit breaker is within sight from the
appliance or is lockable in accordance with 110.25.

110.25 EX>

Exception: Locking provisions for a cord-and-plug connection shall not
be required to remain in place without the lock installed.

Cord & Plug are the best option, because most kitchen appliances do not accept LOTTO

OR, HW it all, w/kitchen subpanel w/in sight

~RJ~

 

[Moksha]

I've seen both of this ways allowed in my area

 

[MAC702]

Or maybe it is because all the ones I have dealt with electrically you push under the counter.. or can leave out against a wall...and often times the customer puts the hose in the sink...

It's not just you. I've never seen a hardwired DW, either. And they are all screwed and fixed under the counter, usually next to the sink, and the cord and drain go through a cabinet wall hole and hook up under the sink. They are plugged in to a receptacle, usually a duplex that is half-hot/half-switched and sharing a MWBC with the garbage disposal.

 

[olc]

Do you install a cord and plug on a disposal?


I've never seen a plug on a dishwasher.
The only ranges I have seen hard wired are drop in type.

 

[packersparky]

422.16 covers disposals, dishwahers, compactors, range hoods, and cooking units

422.31, both A and B dictate the following>




110.25 EX>



Cord & Plug are the best option, because most kitchen appliances do not accept LOTTO

OR, HW it all, w/kitchen subpanel w/in sight

~RJ~

110.25 would allow a breaker lock at the panel.

 

[MAC702]

Do you install a cord and plug on a disposal?...

Yep. And I've never seen it done any other way.

Interesting how things change throughout the country.

 

[olc]

Unless it's interpreted to be subject to physical damage then you can use NM, I would use a cord. Hard wired DW's will require a disconnect or breaker lockout.

For a disposal - Doesn't the switch serve as the disconnect?

 

[infinity]

For a disposal - Doesn't the switch serve as the disconnect?

It could but typically they're on the counter top and I have heard an inspector say that it's not within sight when you're working under the sink.

 

[JFletcher]

It could but typically they're on the counter top and I have heard an inspector say that it's not within sight when you're working under the sink.

He is correct.

I wonder if line-of-sight can be accomplished (code wise) with permanently mounted mirrors...

 

[romex jockey]

110.25 would allow a breaker lock at the panel.

which would bring us to>>>>>

422.34 Unit Switch(es) as Disconnecting Means.

details would depend on the structure ....

~RJ~

 

[infinity]

which would bring us to>>>>>

422.34 Unit Switch(es) as Disconnecting Means.

details would depend on the structure ....

~RJ~

With most modern appliances the days of using the unit switch as a disconnecting means are just about over.

 

[GerryB]

I've never seen or been asked by an inspector for a breaker lock in residential, you guys? Even a hard wired oven or cook top.

 

[infinity]

I've never seen or been asked by an inspector for a breaker lock in residential, you guys? Even a hard wired oven or cook top.

Required and enforced around here.