Voltage Drop Across New Breakaway Switch
I recently replaced my existing breakaway switch with a new one manufactured by Hopkins. In testing it, I could not hear the brakes actuate when the switch was energized. I checked my voltage for the ...
Forum Discussion
Allworth wrote:
You might try measuring from the input wire of the switch to a chassis ground. You should get battery voltage.
Then (with the pin in place) measure output wire of the switch to ground and it should be zero.
Pull the pin and output wire to ground should be same as battery voltage. i.e. there should be NO internal loss in the switch. If there is, the switch is defective.
A
This^^^^^^
The breakaway switch should pass FULL battery voltage.
DOT requirement is emergency brake system supply FULL battery voltage for 15 minutes
