During hot tub wiring, copper wire is recommended with THHN (thermoplastic nylon) insulation. Avoid aluminum wire. The recommended hot tub wire size is 6 AWG copper. Beginning at the LB fitting, use fish tape to pull the wires from the fitting to the spa panel.

What size wire do I need for 220V hot tub?

All 220v spas require a 4 wire connection from your main circuit breaker panel. There must be a GFCI disconnect breaker panel at least 5′ from spa and within line of site of spa. Most spas will run effectively on a 50amp 2 pole main circuit breaker. Some spa manufacturers require a 60amp breaker.

How Far Will 8-gauge wire carry 50 amps?

Scott, 8 AWG may carry a maximum of 70 Amps in free air, or 50 Amps as part of a 3 conductor cable.

What size wire do you need for a 50 amp breaker?

6 50 AMP Wire Size For a maximum of 50 amps, youll need a wire gauge of 6. Fifty amp breakers are most often used to power many different appliances. However, a kitchen oven can alone require 50 amps. Many electric dryers also require a 50 amp breaker.