Hot tub wiring and GFCI

What a hot tub circuit needs: wire size, GFCI protection, disconnects, and 120V vs 240V.

120V vs 240V hot tubs: differences in heating, power, and wiring120V plug-and-play tubs heat about 1-2°F per hour and pause heating with jets on. 240V tubs heat 3-6°F per hour but need a 50A circuit.Hot tub disconnect: requirements, distance, and typesA hot tub disconnect must be within sight of the tub, readily accessible, and at least 5 ft from the water. Types, sizing, and placement.Hot tub GFCI breaker: what it is, what size, and how to test itA hot tub must be GFCI protected, usually by a 2-pole 50A GFCI breaker in a spa panel. Learn sizing, monthly testing, and why it trips.Hot tub wiring requirements: what the electrical code expectsMost hot tubs need a dedicated 240V 50A GFCI circuit, 6 AWG copper, and a disconnect in sight at least 5 ft from the water. Code basics.What size wire for a 50 amp hot tub?A 50 amp hot tub circuit normally uses 6 AWG copper: two hots, a neutral, and a ground, in conduit. See the chart for 30, 40, and 60 amp.