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Which relay, switch, connectors, etc to connect pull-type sprayer to tractor power
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Lone Cedar
Posted 3/13/2025 06:56 (#11144798 - in reply to #11144690)
Subject: RE: Which relay, switch, connectors, etc to connect pull-type sprayer to tractor power


SW Iowa		Deutsch DTP is rated 25A and fully sealed. Larger contacts than regular DT series. Ag Leader uses 2 pin DTP for module power, that if you know if a decent local dealer they should likely have proper tooling.

If you make the connection in the cab so it doesn't need to be sealed, Anderson power pole is probably the cheapest/easiest decent higher current connector. There are a bunch of different sizes but don't think you'd need very big for 25-30A. I usually crimp these with pliers and solder (with flux), just have to make sure you don't get solder into the slot/ears that lock into the plastic housing.

You also could potentially use a connector rated for more than half your load, but use 4 pin housing with 2 pins for power and 2 pins for ground, if that's more convenient. This may get tricky terminating to 10 gauge wire, though.

Relay probably doesn't matter a lot as long as it's rated for sufficient current. I'd probably use a common automotive relay, just make sure socket/pigtail wires are rated for your current.

If running your heavy wire straight to the battery, make sure you put a fuse in so you have some protection in case there's ever a short.
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