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8. DC Distribution Assembly and Connections
Overview
DC (load) distribution panels offer either fuses (US or DIN styles) or circuit breakers (US or DIN
styles). Fuse panels are available with protectors from 1 to 800 amps, and circuit breaker panels are
available with protectors from 3 to 800 amps. Some of the larger protectors (100 amperes and above)
have load monitoring shunts in each load protector path. When using remote peripheral monitoring
modules (RPMs) with the Galaxy Millennium II Controller, measurement of these loads is available for
history and sizing.
The dc distribution panels may be equipped with a ground return bar for connecting the load returns
internal to the cabinet, or external ground return bars may be used.
All distribution panels except for the smallest GMT fuse panels may be equipped with a low voltage
load disconnect (LVLD) contactor for load-shedding applications.
Each panel is equipped with an alarm card that communicates to the controller any operated fuse or
circuit breaker and provides a visual LED that indicates an operated protector.
Note: Panels for DC distribution are white; battery connection panels are blue.
Warning
Turn off dc breaker and remove dc fuses before making connections.
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