Receptacle rating

Status
Not open for further replies.
C

cppoly

Senior Member
Location
New York
An appliance cut sheet says it requires a dedicated 15 Amp dedicated outlet. Is a 15 A simplex receptacle required or can a 15 A duplex receptacle be used knowing that only this one appliance will be plugged into it?
 
The only thing I can think of is a 15 ampere circuit limits the max load of the cord and plug load to 12 A, so while the unit draws 10 A that leaves a maximum of 2 A load allowed if someone plugs something else in to another receptacle if a duplex is used. Also, since the wording in the cut sheet says 15 A dedicated outlet, doesn't that mean a simplex is required because of the word dedicated?
 
It is a good question. We have an inspector around here that requires a single recep. for microwave range hoods. Because someone can plug something in does not mean they would.

(B) Receptacles.
(1) Single Receptacle on an Individual Branch Circuit.
A single receptacle installed on an individual branch circuit
shall have an ampere rating not less than that of the branch
circuit.
Click to expand...

I don't think this requires a single receptacle however I would install a single recep. in the op's case just not sure it is required
 
Neither the phrase "dedicated outlet" nor the phrase "dedicated circuit" appears in the NEC. I think you can install a duplex for this application.
 
charlie b said:
Neither the phrase "dedicated outlet" nor the phrase "dedicated circuit" appears in the NEC. I think you can install a duplex for this application.
Click to expand...


Just a point of interest- dedicated circuit appears one time in 705.12(D)(1)-- obviously nothing to do with the op's concern
 
Really Dennis --Outlet.
A point on the wiring system at which current is

taken to supply utilization equipment. - time to look up dedicated since it is not in the code -- Dedicated 15A outlet = dedicated 15a branch circuit to serve the equipment - the OP wanted the meaning of the manufactures requirement -- outlet & receptacle are two different definitions
 
mwm1752 said:
Really Dennis --Outlet.
A point on the wiring system at which current is

taken to supply utilization equipment. - time to look up dedicated since it is not in the code -- Dedicated 15A outlet = dedicated 15a branch circuit to serve the equipment - the OP wanted the meaning of the manufactures requirement -- outlet & receptacle are two different definitions
Click to expand...

Sorry but I have no idea what you are trying to say
 
Branch Circuit, Individual. A branch circuit that supplies only one utilization equipment.


Most all manufactures when they want a dedicated circuit are referencing an individual branch circuit. Nothing else served by the branch circuit

(B) Receptacles.

(1) Single Receptacle on an Individual Branch Circuit. A single receptacle installed on an individual branch circuit shall have an ampere rating not less than that of the branch circuit
 
cppoly said:
The only thing I can think of is a 15 ampere circuit limits the max load of the cord and plug load to 12 A, so while the unit draws 10 A that leaves a maximum of 2 A load allowed if someone plugs something else in to another receptacle if a duplex is used. Also, since the wording in the cut sheet says 15 A dedicated outlet, doesn't that mean a simplex is required because of the word dedicated?
Click to expand...

Seems to me it has to do with how "outlet" and "duplex receptacle" are defined. I think of a duplex as two outlets, so a single receptacle would make more sense.
 
Generally, and in most cases an outlet is where the branch circuit terminates -- J box comes to mind -- fixtures & devices attach to the j boxes -- the manufacture's requirement has nothing to do with a single or duplex being the type of device installed -- If the manufacture called for a 20a dedicated outlet would you query about using a 15a duplex?
 
Status
Not open for further replies.
Top