What are the Functions of the 3 Wires on Hopkins LED Breakaway Switch, # HM20059

Updated 02/07/2011 | Published 02/04/2011

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Hopkins Trailer Breakaway Switch with Pin, Cable, and LED Power Indicator

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Question:

current brake away has only 2 wires, this one has three,black,blue,and white. will this still operate correctly? and how to wire into only 2 wires?

asked by: Terry

Expert Reply:

You are correct, the Hopkins LED Breakaway Switch, # HM20059, does have 3 wires. The white wire is the ground wire and should be attached to the trailer frame. The blue wire on the switch will connect to the electric brake wire coming from the trailer side connector. The black wire goes to the break away battery. This part is just a switch, if you need a new system, I recommend Engager Trailer BreakAway Kit with Charger and Tester, # 20099. I have included a link to the installation details for reference.

If you just need a replacement 2 wire switch, you can use Hopkins Replacement Break-Away Switch, # HM20010. On this switch, one wire splices into the electric brake wire coming from the trailer side connector. The other wire connects to the break away systems brake wire.

expert reply by: Michael H