Installed Fortrex 36 VDC 112 thrust with 6 gauge wire. What size amp breaker is recommended?
thanks
Installed Fortrex 36 VDC 112 thrust with 6 gauge wire. What size amp breaker is recommended?
thanks
21 XD 225 Merc
If you have integrity, nothing else matters. If you don't have integrity,
nothing else matters.
21 XD 225 Merc
The conductor gauge chart that MinnKota is using goes up to 25' and does show 8ga for the 112. However, if the boat is big enough for a 112, it is probably somewhere between a 19' and 22' boat. Lets use a 20' boat for example. With a 20' boat you will have somewhere around 45' of wire, or an additional 20' that MinnKota's chart does not take into consideration. Remember, on DC wiring you have to go from negative back to positive -- and across all the jumpers. While it's true that anywhere the amps are measured on that wire, it is going to be apx 52A (suggested amp draw for the 112), the length of the wire will dictate the diameter of the wire (gauge) that needs to be used to help eliminate resistance and voltage drop. This is the reason to use 6ga on that long of run.
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6 is better.
If you have integrity, nothing else matters. If you don't have integrity,
nothing else matters.
21 XD 225 Merc
SC,Originally Posted by SC Bullet
Minn Kota's table does correctly consider total wire lengths..... It is being expressed as stated here:
So 8AWG according to MinnKota (and as well well published wire tables*) would have been adequate for your install < 25' run (~50 feet for total circuit) and have fully met the no more than 5% voltage loss at max amp draw needs of your trolling motor.*Wire Extension Length refers to the distance from the batteries to the trolling motor leads.
(50 feet of 8AWG results in a voltage loss of no more than 5% of the trolling motor batteries total voltage output.)
Last edited by Lou r Pitcher; 10-17-2018 at 10:04 AM.