Blue Bird M380 2003, Owner'S Manual

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M380 Owner’s Manual________________Interior and Exterior Systems Operation – 30/50 Amp 110-Volt Operation – 4-4
Rev. “F” 4-4-3
4-4.1.6 AC Load Center
The AC Load Center is a 120/240V, 50A, 1-phase, 3-wire, split bus power distribution panel. The line
outputs of the Automatic Transfer Switch are connected to the Load Center main 50A circuit breakers
CB1-B & CB2-A. The Load Center split bus configuration separates the circuit breakers into two sets:
(1) the Shoreline/Generator breakers, and (2) the Inverter breakers.
The loads connected to the circuit breakers CB3-A/B through CB6-A/B can only be operated when
the Shoreline/Generator power is available. The loads connected to CB7-A, CB8-B, CB9-A/B through
CB12-A/B can be operated when the Inverter is turned On and the House batteries are charged or
when the Shoreline/Generator power is available.
The types of circuit breakers are tandem style - two breakers that occupy one pole space. Each pole
space is designated by a number suffix with each tandem breaker designated with an "A" or "B"
suffix; e.g. CB1-A & CB1-B. The Load Center has two separate power legs (lines): L1 and L2. Odd
numbered breakers are attached to L1; even numbered breakers are attached to L2. The ammeters
in the Entry Door Overhead Transition cabinet monitor the L1 & L2 currents and are used to load
manage the appliances or lights that are turned On at one time. If the Shoreline power is 240V, 50A,
3-wire, then each line is limited to 50A. If the Generator is operating, then the line current is limited to
50A each.