Separate circuit for hydromassage tub

[fisherelectric]

Other than 110.3(B) what other code section would require a hydromassage tub to be on a "dedicated" GFI circuit? I don't know the HP or amperage of the motor.

 

[nakulak]

680.22 a 5 ? (2005) (doesn't say dedicated tho) (although 680.22 A 1 seems to indicate maybe its dedicated ?)

 

[480sparky]

I'd put in an RFI. Ask if there's an in-line heater, too. That may require another circuit.

 

[nakulak]

(note that the definitions in 680 define spa as hydromassage tub )

 

[infinity]

A fastened in place piece of utilization equipment can use up to 50% of a non-individual branch circuit. 210.23(A)(1). It's likely however that the tub manufacturer will require a individual branch circuit. I'm not sure if the NEC even uses the term "dedicated".

 

[nakulak]

note the exceptions in 680.44 in case they apply to your situation

 

[fisherelectric]

Section VII: Hydromassage bathtubs
680.70 Hydromassage tubs.....shall not be required to to comply with other sections of this article (Article 680).

 

[infinity]

Actually they're required to be on an individual branch circuit:

680.71 Protection.
Hydromassage bathtubs and their associated electrical components shall be on an individual branch circuit(s) and protected by a readily accessible ground-fault circuit interrupter. All 125-volt, single-phase receptacles not exceeding 30 amperes and located within 1.83 m (6 ft) measured horizontally of the inside walls of a hydromassage tub shall be protected by a ground-fault circuit interrupter.

 

[fisherelectric]

The requirement for an individual branch circuit in 680.71 is new to the '08 (not in my '05), but good enough for me. Thanks. Steve

 

[electricmanscott]

Other than 110.3(B) what other code section would require a hydromassage tub to be on a "dedicated" GFI circuit? .

Good practice.