Hot Tubs
Most spas require a 50 or 60 amp 220v service, but some smaller spas will work with a 15 amp 110v service. Check the list below to determine what size breaker your spa needs.
| Model | Voltage | Amperage |
|---|---|---|
| M9 | 220v | 60 amp |
| M8 | 220v | 60 amp |
| A9L | 220v | 60 amp |
| All other spas | 220v | 50 amp |
Bullfrog spa models A5L and R5L may be ordered to work with 110v 20 amp service. This configuration includes a 110v power cord.
Keep in mind that while “plug and play” spas can run on 110 volt, it will always run more efficiently on 220 volt and will heat much faster.
Converting to 30 Amp
Some Bullfrog spas may be adjusted to work with 30 amp service. When a spa is converted to 30 amp power service, the spa will work as designed, but the heater will turn off if the pump is turned to high. The user will not notice this change unless they sit in the spa in cold weather with the jets on high for a sustained period of time.
Swim Spas
Swim spas will typically require a 220v 50 amp service.
The S150 requires 50A.
The S200 requires 60A.
Dual Zone swim spas (swim spas with a pool area and a separate hot tub area) will require two separate connections: one 50 amp for the pool area and one 50 amp for the spa area.
Swim spas equipped with variable speed swim current require a 60 amp Siemens brand breaker
The Electrical Supply
While 110 volt spas generally come with a power cord that has a built-in GFCI protector, all 220v spas and swim spas are powered using a hard-wired connection. The electrical supply consists of a disconnect box, a GFCI protected breaker, the supply wire, and flexible conduit.
The entire electrical supply (indicated in red below) should be installed by a licensed electrician before the delivery of your spa.
Disconnect Box
The disconnect box should be mounted at least 5′ away from the exterior of the spa. This disconnect box houses the GFCI breaker.
Electrical code requires the GFCI to be 5′ away from the spa to prevent a person from touching the breaker and the spa at the same time.
GFCI Breaker
All hot tubs and swim spas require a Ground Fault Circuit Interrupter (GFCI) Breaker. Electrical code requires the breaker to be installed in the general vicinity of your hot tub but must be a minimum of 5′ away from the spa.
Flexible Conduit
After exiting the disconnect, the wire is protected in 3/4″ non-metallic flexible conduit. This flexible conduit should be as long as the wire it protects.
Flexible conduit is required in all installations. Even if the supply will be “stubbed” through the bottom of the spa.
Final Connection
The conduit, and the electrical supply wire should be long enough to run through the spa, and make a waterproof connection at the control box located at the front of the spa.
Bullfrog Spas of Northern Utah can not make the final power connection to spas outside of Utah.
Wiring Diagram
GFCI circuits require four wires, including the neutral and ground wires. GCFI breakers wire differently from normal breakers. It is important to connect the neutral to the correct location. Note that the white wire from the spa connects directly to the GFCI breaker, NOT the ground/neutral bar as would a normal breaker.
Contractor’s Diagram
Click on the corresponding PDF below to view the location of the chaseway on your spa model.
Electrician Referrals
Master Electric: 801-782-8042 (Weber, Davis, Morgan, and Box Elder Counties)
DEW Electric: 801-529-0600 (Weber, Davis, Morgan, and Box Elder Counties)
NTS Electrical: 435-994-1690 (Cache Valley)
Tyler Warner Electrical: 435-938-8740 (Bear Lake and Idaho)
*We provide contractor referrals for information purposes only. We do not endorse or guarantee the quality of work performed by the contractors, and we are not liable for any damages resulting from the use of the referred contractors. The user is responsible for verifying the credentials of the referred contractors before hiring them.