- Messages
- 13,377
- Reaction score
- 13,500
- Points
- 857
- Location
- Royal, AR
- Boat Make
- Yamaha
- Year
- 2007
- Boat Model
- SX
- Boat Length
- 23
First I would use an ampacity calculator inputting the distance and amperage to calculate the size of wire needed. I would use the fuse amperage rather than the expected draw to be safe.
This is an example. Wire Size Calculator
You will not be touching or bending these wires a lot. Fancy wires are unlikely to be a good investment. I would use appropriately sized THHN wire. Lowes or Home Depot will carry it by the foot. Your local electrical supply will likely charge less so call a few and ask.
I have three runs of pairs of 8 gauge THHN in my boat. One to a switch panel that I added for a multitude of accessories with a 20 amp fuse. The other two each feed an amplifier with 30 amp fuse. The switch panel wiring has worked well for more than 6 years. The amp circuits have a few years on them.
This is an example. Wire Size Calculator
You will not be touching or bending these wires a lot. Fancy wires are unlikely to be a good investment. I would use appropriately sized THHN wire. Lowes or Home Depot will carry it by the foot. Your local electrical supply will likely charge less so call a few and ask.
I have three runs of pairs of 8 gauge THHN in my boat. One to a switch panel that I added for a multitude of accessories with a 20 amp fuse. The other two each feed an amplifier with 30 amp fuse. The switch panel wiring has worked well for more than 6 years. The amp circuits have a few years on them.
