Dishwasher circuit

[GerryB]

I'm sure this has come up before, but why is there an exception for the refridgerator in 210.52.B and not the dishwasher? Let's you have two 20 amp counter topcircuits, have an individual 15 amp circuit for the fridge, can you run another individual 15 amp ckt for the dw?

 

[Lanesmith]

Yes you can run separate for dishwasher I always have. And you can have more than two appliance ckts. You can only have 2 devices or outlets per appliance ckt.

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[mjf]

Yes you can run separate for dishwasher I always have. And you can have more than two appliance ckts. You can only have 2 devices or outlets per appliance ckt.

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Code reference for "You can only have 2 devices or outlets per appliance ckt." please.

 

[kwired]

Dishwasher is not permitted to be on a SABC.

Refrigeration equipment is included in the SABC's. The 15 amp circuit exception is for refrigerators only - but is still part of the SABC's

You can run two SABC's to a kitchen as well as run outlets in the dining room, pantry, breakfast room, or other similar rooms off those same two circuits - and have no other SABC's in the house. A second kitchen will require at least two more SABC's though.

A small enough kitchen may just have two outlets on the SABC's. A large kitchen could have 100 outlets on SABC's and still only two circuits, might not be good design but does pass NEC.

 

[Little Bill]

I'm sure this has come up before, but why is there an exception for the refridgerator in 210.52.B and not the dishwasher? Let's you have two 20 amp counter topcircuits, have an individual 15 amp circuit for the fridge, can you run another individual 15 amp ckt for the dw?

You can run a circuit for the DW but it has to be a 20A, not 15A as the exception is only for refrigerator.

Yes you can run separate for dishwasher I always have. And you can have more than two appliance ckts. You can only have 2 devices or outlets per appliance ckt.

Sent from my SAMSUNG-SM-T337A using Tapatalk

I don't see where you are coming up with "only two devices or outlets per appliance ckt".

 

[kwired]

You can run a circuit for the DW but it has to be a 20A, not 15A as the exception is only for refrigerator.



I don't see where you are coming up with "only two devices or outlets per appliance ckt".

DW is not on the list of things that must be on SABC's, it is excluded from SABC's by "shall serve no other outlets" (or something very close to that anyway) it does not need to be a 20 amp unless the capacity of the appliance dictates that.

 

[raider1]

DW is not on the list of things that must be on SABC's, it is excluded from SABC's by "shall serve no other outlets" (or something very close to that anyway) it does not need to be a 20 amp unless the capacity of the appliance dictates that.

Agreed

Chris

 

[Dennis Alwon]

Code reference for "You can only have 2 devices or outlets per appliance ckt." please.

That's another one of those stories that got handed down and no one looked to see if it was true. We both know it is not true.

 

[FionaZuppa]

You can run a circuit for the DW but it has to be a 20A, not 15A as the exception is only for refrigerator.

if its dedicated ckt (one recept or hardwired), why 20A ? not an NEC Q, just a general Q.

 

[jumper]

if its dedicated ckt (one recept or hardwired), why 20A ? not an NEC Q, just a general Q.

It does not have to be a 20A circuit to the DW unless manufacture's specs call for it. It is also not a given that it has to be a dedicated circuit, but as stated it cannot be on a SABC.

Edit: What kwired said.

 

[jumper]

I'm sure this has come up before, but why is there an exception for the refridgerator in 210.52.B and not the dishwasher? Let's you have two 20 amp counter topcircuits, have an individual 15 amp circuit for the fridge, can you run another individual 15 amp ckt for the dw?

Note that in the 2017 NEC any appliance, not just refrigeration units, can be on a dedicated/individual circuit even if that that space is in the SABC area.

 

[FionaZuppa]

see http://forums.mikeholt.com/showthread.php?t=142780

 

[jumper]

see http://forums.mikeholt.com/showthread.php?t=142780

A link with no comment is kinda worthless.

What do you wish to speak of?

 

[peter d]

I'm sure this has come up before, but why is there an exception for the refridgerator in 210.52.B and not the dishwasher? Let's you have two 20 amp counter topcircuits, have an individual 15 amp circuit for the fridge, can you run another individual 15 amp ckt for the dw?

Yes, in my area it's standard practice to run a dedicated 15 amp circuit for the DW and has been for a long time. I've never heard of or had an issue with this and have never encountered a need for a 20 amp circuit for the DW.

 

[kwired]

Note that in the 2017 NEC any appliance, not just refrigeration units, can be on a dedicated/individual circuit even if that that space is in the SABC area.

Unless there was a change in 2017, you could do that before as well.

If you ran a single receptacle outlet to a counter top receptacle, you might have "microwave outlet" in mind, but many will still see that as an additional SABC and an additional 1500VA for load calculations as well.

If you ran the same single receptacle branch circuit to same spot but they built a cabinet around it to house the microwave - you might be able to call it a dedicated circuit and not a SABC, and might even be able to make it a 15 amp circuit if you wanted. You would't have a 1500 VA load for that receptacle but have whatever the appliance rating is in your load calculations (if you can get away from it being considered a SABC, I think many AHJ's will still call that one a SABC outlet if it is below 5',6"(?) from the floor)

 

[tom baker]

this section was changed for the 2017 NEC see 210.25 B 1 ex 2