My SSB is a 12 VDC unit. The boat is a 24 volt system. The SSB circuit breaker is for the 12 VDC power supply that is mounted on a removable board on the aft wall of the cabinet below the nav station (i.e. the partition between the hanging locker and the nav station cabinetry). The fault causing your breaker to trip can be of three sources:
1. A faulty circuit breaker
2. A fault in the power supply if your boat has the same as mine
3. A fault in the SSB or the wiring between any of these.
Good luck in your trouble shooting.
Gary S. Silver
Amel SM 2000 # 335
Puerto Del Rey Marina, Fajardo, Puerto Rico