Trolling motor wire gauge on a 1995 181DC?

[natchomamma]

I'm in the process of upgrading my older 24V MinnKota all terrain to an 24V Ultrex . I figured it would be an unbolt and bolt on a new one (Its never that easy).

I'm already running into issues and I do not have the Ultrex yet. My trolling motor breakers are 40 Amp and the Ultrex requires 60. Also, I've looked at the trolling motor wire and cannot tell what gauge wire it is. The markings are worn off. Ultrex recommends 8AWG.

Does anyone know what Awg wire comes standard in my boat? It has 2 sets of wires for the trolling motor. I measured the OD of the wire and insulation and it is 7mm.

[ChampioNman]

8 gauge came standard. Here is a 60 Amp breaker you can use.

[grout-scout]

That old wire is better quality than what you’d buy now, looks to be at least 8.

2 sets was for 12/24 trolling motors, get a multimeter and find the 24v leg.

[ChampioNman]

If the TM is already wired for 24 Volts from the battery all you're are going to do is swap the breaker out at the battery.

[grout-scout]

If the TM is already wired for 24 Volts from the battery all you're are going to do is swap the breaker out at the battery.

Your right, I wasn’t paying attention to what he wrote in the first post, the 2 sets of wires thing somehow was all that went into my head.

[BigMouth]

http://circuitwizard.bluesea.com/

Use the Blue Sea's circuit wizard to check wire size and fuse rating. Remember to count both legs of circuit to determine length of wire run. In other words it’s approximately 18 feet from battery to trolling motor plug on the bow in my boat. You must count both the positive and negative run of your cables, so in my case my wire length would be 18’ + 18’ = 36’ wire run.

Here is what the app and ABYC standards recommend... I used approximately 32’ for your 181.

Specs...




Recommendation




Good luck!

[86 inches]

If you use 24 volts, 56 amps and a 5% voltage drop as specified by Minn Kota, the calculator will give you 8 gauge with a 60 amp breaker

[BigMouth]

If you use 24 volts, 56 amps and a 5% voltage drop as specified by Minn Kota, the calculator will give you 8 gauge with a 60 amp breaker

OMG! I can’t believe I used 12v! Sigh Okay I edited it...

[86 inches]

You’re losing it! Welcome to the club...

[BigMouth]