rigging up electric roof loader.

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revolt
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Posts: 85
Joined: Fri Jan 12, 2018 10:20 am
Local Fishing Region: adelaide

rigging up electric roof loader.

#1 Post by revolt » Mon May 21, 2018 2:44 am

Hi I am half way through making a side slide loading system for loading on roof. I have a 3000lb electric winch which draws about 40 amps when lifting 1000 lbs but on 3000 lb draws 145 amps. The kayak only weighs about 80lbs so electric winch will lift it easily. My question is should I put a 150 amp fuse in line. I already have a lead in car with Anderson plug for connecting to caravan this lead has 100amp fuse. I could use this to connect to.?

Paulioq
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Kayaks: pa14 profiha525

Re: rigging up electric roof loader.

#2 Post by Paulioq » Mon May 21, 2018 9:14 pm

dc power isn't as easy as changing a fuse because you will just cook the wire and that's how car electrical fires are started. the winch will have a max amp draw/recommended fuse size you need to match that for the fuse other wise you will blow your winch and not the fuse when it goes wrong the fuse is there for protection also dc needs .1mm2 cable per amp of draw so 10 amp need 1mm2 cabble 100 amp needs 10mm cable if you want to bump that up to 150amp then you will ned 15mm cable. running 150 amp through 100 amp cableing is asking for trouble. are you sure theres that much amp load/power draw on a 3000lb winch dragging up a maybe 100lb weight(66kg for a pa14 like 120lb).

revolt
KFDU Angler
Posts: 85
Joined: Fri Jan 12, 2018 10:20 am
Local Fishing Region: adelaide

Re: rigging up electric roof loader.

#3 Post by revolt » Tue May 22, 2018 2:36 am

The manual says draws 60amp at 1000 lb load 90 amp 2000 and 145amp at 3000. The winch lead is only about 6mm in diameter to me this seems light. To thin for 145 amps.

Paulioq
KFDU Angler
Posts: 200
Joined: Thu Dec 08, 2016 3:18 pm
Local Fishing Region: Wynnum
Kayaks: pa14 profiha525

Re: rigging up electric roof loader.

#4 Post by Paulioq » Wed May 23, 2018 7:29 pm

I could be wrong but have always been taught .1mm2 per amp for safe dc operation so 6mm2 should be 60 amp but the manufacturer might have there own rateing or call it burst load. (crazy import consumer electronics its like national lampoons out there)

Paulioq
KFDU Angler
Posts: 200
Joined: Thu Dec 08, 2016 3:18 pm
Local Fishing Region: Wynnum
Kayaks: pa14 profiha525

Re: rigging up electric roof loader.

#5 Post by Paulioq » Wed May 23, 2018 7:32 pm

you should be right its bugger all load for the winch what you want to do with it, I don't think you should have any problems with amp draw but put an amp meter on it to be sure

revolt
KFDU Angler
Posts: 85
Joined: Fri Jan 12, 2018 10:20 am
Local Fishing Region: adelaide

Re: rigging up electric roof loader.

#6 Post by revolt » Sun Jun 03, 2018 10:06 am

Have now finished electric roof loader. It works great no problems with power that's for sure. Did not have any problems with fuses 60amp fuse is ample. Only minor hick up was remote wireless hand control, but that was easily fixed by mounting wireless sender on top of motor to send clear signal. Whole rig finished up costing about $150. I was able to pick up two 3mtre lengths of 50mm aluminium tubing from scrap metal dealer for $15. The electric winch was $109 from ebay, extended lead and Anderson plug about $20. Made up detachable winch mount from some old galv square tubing I had around the shed. A few nuts and bolts etc. Really pleased works great no more heavy lifting .yeh.

revolt
KFDU Angler
Posts: 85
Joined: Fri Jan 12, 2018 10:20 am
Local Fishing Region: adelaide

Re: rigging up electric roof loader.

#7 Post by revolt » Sun Jun 03, 2018 10:51 am

Rigged winch.
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Paulioq
KFDU Angler
Posts: 200
Joined: Thu Dec 08, 2016 3:18 pm
Local Fishing Region: Wynnum
Kayaks: pa14 profiha525

Re: rigging up electric roof loader.

#8 Post by Paulioq » Sun Jun 03, 2018 3:07 pm

looks good how does it go. nice to hear it all works well for you

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