Power Buses - ADC PowerWorx Select Series User Manual

BUS A AND BUS B
ALARM CONTACT
CONNECTOR (WIRE-
WRAP PIN BLOCK
TYPE SHOWN)
TO
BATTERY
B
TO
RETURN
B
CONNECTORS
COMPRESSION
LUG-STUD TYPE)
Figure 2. Rear View of Select Series Circuit Breaker Panel with Protective Cover Removed
1.1

Power Buses

Each circuit breaker panel has two isolated power buses. Each bus distributes the input power to
the output power circuits. In each bus circuit, current flows from the input power bus, through
the circuit breaker, to the output power circuit. The current capacity of each bus is 100 Amps
maximum. A typical circuit breaker panel block diagram is shown in
Warning: Use of one bus only on a dual bus panel will result in false alarms for the unused bus.
Power is required on both buses on a dual bus panel for normal operation.
Each of the power buses supports eight circuit breaker positions. Any combination of circuit
breakers up to 100 Amps total capacity may be installed in the circuit breaker mounting
positions for each power bus. Other circuit breaker capacity configurations may be available by
special order.
When a circuit breaker trips, the input power bus is disconnected from the corresponding output
circuit.
BUS B INPUT
(TWO-HOLE
CHASSIS
GROUND
TERMINALS
BUS B OUTPUT
BUS A OUTPUT
CONNECTORS
CONNECTORS
(SCREW-DOWN
(SCREW-DOWN
BARRIER TERMINAL
BARRIER TERMINAL
STRIPS)
to Show Connections (Panel with Wire Wrap Alarm Connection Shown)
BUS A INPUT
CONNECTORS
(TWO-HOLE
COMPRESSION
LUG-STUD TYPE)
STRIPS)
ADCP-80-531 • Issue 4 •July 2004
16757-B
TO
BATTERY
A
TO
RETURN
A
Figure 3.
© 2006, ADC Telecommunications, Inc.
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