The UL-approved product instructions call for 8 AWG wire. Southwire’s voltage drop calculator tells me those conditions at 100′ run yield 1.92% voltage drop on 8 AWG. If the hot tub failed on 2% power drop, there is no way UL, CSA or TUV would list it. You’re all set.

What cable do you use for a sauna?

Most sauna heaters (at least any with real power) require an 8-3 wire, and 12-3 wire to power the control panel light switch and any other lights and wall outlets.

What size wire do I need for a 100 foot run?





The National Electrical Code (NEC) recommends a maximum voltage drop of 3 percent for individual household circuits (known as branch circuits). This is a good goal to shoot for when sizing the conductors for an underground cable.
For 240-volt circuits:

14 AWG 100 feet
10 AWG 128 feet
8 AWG 152 feet
6 AWG 188 feet

What size wire do I need to run 50 amps 100 feet?

6 AWG

For every 100 feet, voltage drops by 20%.
Example: 50 amp wire is usually the 6 AWG (we require at least 62.5A and 6 AWG can handle 65A). If you have to power an electric device 100 feet away, you need 20% amps more. Instead of 62.5A, you’re looking at 62.5A × 1.2 = 75A.

How far should a sauna heater be from the wall?

The sauna heater should be placed on the same wall as the door, see figure 6. In an exceptional circumstance, the heater may be placed on a side wall, but as close as possible to the wall with the door. Fit the heater 170 mm above the floor, observing the regulations for the minimum distance to the side wall.

What wire size do I need to go 100 feet for a 100 amp service to a workshop?





For a 100 ampere circuit, the conductors will likely be required to be 3 AWG copper or 1 AWG aluminum.

How far can you run #2 copper wire?

Example calcuation 2 – Copper Wire, 3 Phase power

Cable run: 400 ft.

What size wire do I need to run 300 feet?

for 300 feet for 100 amp rated service I would use Aluminum direct burial 1/0-1/0-1/0-1/0, the forth can be as low as #4 for the ground (but also in conduit, even if in conduit must still be rated underground wire and required by code also) Also note the size wire the breaker can handle, cannot cut strands to make fit, …

What size wire do I need for a 200 foot run?



A 200 feet distance is a long run and, as such, would require a wire of adequate thickness. A 4 AWG wire best fits this distance.

What wire size do I need to go 100 feet for a 60 amp service to a workshop?

What size wire should I use for a 60 amp subpanel? You can get away with 6 AWG when you have a short run of wire, however, due to voltage drop, if you ever decide you want to go more than 100 feet then a 4 AWG is the size you should choose.

What wire do you use for 100 amps?

For 100 AMP service, you’ll need a #4 AWG copper wire or #2 AWG aluminum or copper-clad wire. Make sure to limit your voltage drop to 3% regardless of distance.

How do I choose a wire size?



To determine what gauge wire you need, consider the carrying capacity and the amount of current the wire needs to conduct (measured in amperage or amps). Wire gauge is directly related to how many amps you need to run through it. The distance you need the wire to go can also impact the gauge of wire you need.