Alpha Technologies CXPS-E3 19, Техническое руководство

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9400016-J0 Rev D 12
4. Features
4.1 Seismic Racks
The CXPS-E3 system can be installed in a variety of Alpha provided, 19" and 23" seismic racks. These racks have
been Z4 rated and NEBS L3 certified. The racks vary in their Z4 seismic capabilities from 500lb to 2500lb and in
their heights from a 3.5' to 9' (standard 7' racks are available as well). For more ordering information, refer to the
CXPS-E3 Ordering Guide (0470209-00) on the Alpha website.
• 19" or 23" Seismic Rack
4.2 Distribution Centers
The E3 power system has been designed with high density breaker/fuse count for use in 48V applications and is
rated for a total ampacity of 400A. It is available either in a 19" or 23" configuration. All systems include a rear top
cover for the protection of live customer connections.
4.2.1 19" Power Center
Provides up to 21 breakers which can be configured as all load breakers (21 load breakers) or a mix of load and
battery breakers (16 load breakers and 5 battery breakers).
The all load breaker configurations have a shunt that monitors the total load current supplied by the rectifiers to the
load.
The load/battery breaker configuration has a shunt that monitors the total battery charge / discharge current and
includes a 600A Low Voltage Battery Disconnect (LVBD).
Automatic control of the LVBD can be bypassed using the LVD override feature when necessary such as during
maintenance intervals. In addition, the LVD Override feature can be configured to allow parallel remote control or
remote disable. See "4.7 LVD Override" on page 18.
Both load and battery hot and return connections are made on 1/4" studs on 5/8" centers using narrow tongue
lugs. Adapter kits for landing larger cables are available when higher capacity 2 or 3 pole breakers are required.