Circuit
Breaker
Amps Wire No. Description of Items Protected
Engine Junction Box For Cummins QSX15-C500 Power Plant
CB Numbers are per the Electrical Schematic
CB-1 120 5A Main System 12-Volt Power
CB-2 8 5C3 Electronic Control Module (Cummins) Ignition Relay
CB-3 10 6A2 Ether System Start Relay
CB-4 15 5C1 Electronic Control Module (Cummins)
CB-5 15 5C2 Electronic Control Module (Cummins) Engine Diagnostics
CB-6 30 5B Cooling Fan Motor Relay
CB-7 30 6A1 MS1/MS2 Starter Solenoid Relay