Though section 680 deals specifically with swimming pools and spas, this is not the only section that applies to swimming pools. This is where most swimming pool builders, watershape consultants, aquatic designers and even pool equipment manufacturers stumble.
They fail to familiarize themselves with the rest of the NEC, and those sections that also apply to swimming pools.
One major failing of pool pump manufacturers and pool contractors who install these pumps, is the failure to provide notice of the requirement for or the installation of, the appropriate service disconnect.
The NEC states that any permanently installed motor larger than 1/2 horsepower (data plate rating), may not utilize the circuit overload interrupted (aka: circuit breaker) as the service disconnect [NEC 430.109(B)].
The NEC specifically identifies the acceptable type of service disconnect required, depending upon the horsepower of the motor
[NEC 430.109(C) & (D)].
When was the last time that you saw a service disconnect switch between the control panel and the pool pump motor?
This 30A Square-D service disconnect can handle up to 7.5 horsepower and 1 or 3 phase. This unit is rated for indoor use only.
What your contractor does not know CAN HURT YOU!
Paolo Benedetti - Aquatic Artist
"Creating water as art."™
Aquatic Technology Pool and Spa ©www.aquatictechnology.com
You may contact Paolo Benedetti at: firstname.lastname@example.org or at 408-776-8220