wish2fish
Active Member
I got a Kenwood KSC-WA801 powered sub used and the manual doesn't say what size wire you use for the power supply. It does say max current consumption is 12 amp. It has a 15 amp built in fuse so that may tell me something.
What size wire for powered sub
- Thread starter wish2fish
- Start date
- Feb 4, 2007
- 7,251
- Boat Info
- 1996 450DA, TNT, Caribe dink w/15hp OB.
- Engines
- 3126 427HP TD transmissions
nice big fat wire. :grin:
wish2fish
Active Member
TurtleTone said:
okay no comments from the AV crew! :smt043
this is only a 50 watt sub. not huge by any means.
- Feb 4, 2007
- 7,251
- Boat Info
- 1996 450DA, TNT, Caribe dink w/15hp OB.
- Engines
- 3126 427HP TD transmissions
I would over do it just in case you find that a 50w sub isn't enough.
wish2fish
Active Member
yeah, I thinking about going ahead and doing in 10 guage. Should cover me for any situation.
ARMANDALEG
New Member
You didn't say how long the wire run will be. I stole this chart from West Marine:
If you say the max draw is 15A and let's say the distance from the amp to the panel is 15 feet you would start at 15A on the 3% drop chart and move over to the right to 30 feet (round trip distance) which would put you just into 8AWG at the 8-10 split. I would use 8 gauge just to be safe. Conversely if the distance is only 10 feet 10 gauge should be adequate.
If you say the max draw is 15A and let's say the distance from the amp to the panel is 15 feet you would start at 15A on the 3% drop chart and move over to the right to 30 feet (round trip distance) which would put you just into 8AWG at the 8-10 split. I would use 8 gauge just to be safe. Conversely if the distance is only 10 feet 10 gauge should be adequate.
wish2fish
Active Member
Jay,
help me read the chart.
I have 2 choices. About 12 feet up to the dash or 7 feet over to the battery switch.
help me read the chart.
I have 2 choices. About 12 feet up to the dash or 7 feet over to the battery switch.
SearayPaul
Active Member
W2F
You need to count the total run from the positive to the negative terminal. So your total distance is 24ft or 14 ft. I used this calculator. http://www.streetwires.com/products...h for your application. Good luck
You need to count the total run from the positive to the negative terminal. So your total distance is 24ft or 14 ft. I used this calculator. http://www.streetwires.com/products...h for your application. Good luck
ARMANDALEG
New Member
The chart agrees.
Use the 3% Voltage drop chart the one on the right. Start at the bottom left hand corner, then go to up to 15A (Max Current draw) which would be in the middle of 10A and 20A, then move to the right first stop at 16' (pretty close to 14' round trip to the battery switch) at that intersection the chart changes from yellow 12G to green 10G. Then keep moving along at 15A and stop at 25' (again pretty close to 24' round trip distance to the panel) at that intersection the chart changes from green 10G to purple 8G. I would urge you to connect at the panel instead of the battery switch, so go with the 8G.
Use the 3% Voltage drop chart the one on the right. Start at the bottom left hand corner, then go to up to 15A (Max Current draw) which would be in the middle of 10A and 20A, then move to the right first stop at 16' (pretty close to 14' round trip to the battery switch) at that intersection the chart changes from yellow 12G to green 10G. Then keep moving along at 15A and stop at 25' (again pretty close to 24' round trip distance to the panel) at that intersection the chart changes from green 10G to purple 8G. I would urge you to connect at the panel instead of the battery switch, so go with the 8G.