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ABB ED83368-30 Quick Start Manual page 6

Micro-bdcbb dc battery distribution circuit breaker bay 600 a, −48v / +24v, 19” or 23”

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QUICK START GUIDE
A Breakers
Load Connections
Battery Connections – Loads - Figure 7
For single load configurations, A and B sections are bridged: Battery, Battery Return, Breaker Loads, and Load
Returns.
1.
Connect battery feeds and returns.
2.
Connect Breaker loads and returns.
Breakers and Fuse Holders
1.
Open Breaker Access Covers by loosening front panel screws.
2.
Install protectors and protector holders
3.
Close Breaker Access Covers and tighten Breaker Access Screws.
4.
Install fuses into fuse holders.
5.
Install multi-pole bus kits included with each protector and protector holder occupying 2 or 3 positions.
Load Connections - Figure 7
1.
Connect breaker load wires to Breaker Load Connections.
2.
Connect breaker load return wires to the Return Bus.
Page 6
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Load A
Return Connections
Load A
Battery Connections
Battery Lug Landings 3/8" on 1" centers torque 16 ft lb (22 Nm)
Breaker Load Lug Landings 5 mm (#10) on 5/8" centers torque 30 in lb (3.4 Nm)
2 Load configuration shown
Figure 7 DC Connections
Battery Return Connections
Alarm Jumper HDR1
Load B
Battery Connections
Micro-BDCBB_QSG
Load B
Return Connections
B Breakers
Load Connections
Rev. 04

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