Hot Tub Electrical Requirements in California: Circuit Size, GFCI Disconnect and Bonding
Nothing is more frustrating than a hot tub sitting empty because the electrical is not ready. Here is exactly what our hot tub electrical installation team installs so your spa is running the day it arrives.
Circuit size
Most full-size spas require a dedicated 240V, 50 amp GFCI-protected circuit; larger models with heaters and multiple pumps need 60 amps. Plug-and-play 120V spas need a dedicated 20 amp GFCI outlet. Check your owner's manual and we will confirm the requirement.
The disconnect
Code requires a weatherproof disconnect within sight of the spa, at least 5 feet away and no more than 50 feet. We install a GFCI spa panel that doubles as the disconnect.
Wire run and trenching
The feed usually runs in buried conduit from the main panel or a sub panel installation. Longer runs require larger wire to limit voltage drop, which we size during the estimate.
Equipotential bonding
All metal within reach of the water, including the spa shell, pumps and nearby metal, must be bonded together with a copper bonding conductor. This step is often skipped by non-professionals and it is a critical safety item.
Permits and inspection
Spa circuits require a permit in California. We handle it and meet the inspector.
Timing
Book the electrical two to three weeks before delivery. Most installs are completed in a single day, and we can also add outdoor lighting installation and outlets for the patio while we are there.
Call (888) 592-6466 to get your spa wiring scheduled before delivery day.