Windlass Breaker

[Two Sails]

Unfortunately my windlass breaker is shot and needs to be replaced. Our owner's manual calls for a 90A breaker - however windlass draw is 1000W @ 12V ~83A. Shouldn't this then be a smaller 80A breaker? The original breaker is discontinued with now only available options 80A or 100A if I am to maintain the original Lewmar mount. I am thinking the 80A is appropriate?


Of course I don't have the exact model of our windlass as I'm not at the boat. I suppose it can wait until the weekend.

 

[stephen_i_w]

The breaker should be sized according to the wiring from the power supply to the windlass. So, a 100 amp breaker might be acceptable.

 

[Ralph Johnstone]

Time for some homework.

You may find the attached Blue Sea Ampacity chart easier.

 

[JamesG161]

You can buy that breaker from SBO stores...

Hunter 31 windlass, anchor, breaker 90amp

Just for your boat H33 too
Jim...

 

[Two Sails]

The coast guard tables are super helpful - thank you - book-marked! I need to check on my specific windlass current draw. The 2AWG cable length should be <40ft round trip, so the 80A may do it. The replacement bussman 285 series is ~$60 for either the 80A or 100A and the original discontinued bussman 185 series for 90A is $147.

 

[JamesG161]

You can buy that breaker from SBO stores...

You can help this site by buying your exact breaker, includes the Lewmar mount OEM on your boat!
See the my link in blue above.

Jim...