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Section 3. Installation & Cabling
(continued)
Right-Side
View
“ON”
Front
View
“ON”
Left-Side
View
“ON”
3.2.1
DC Circuit Breakers (L1 ~ L10) - Overview
There are 10 DC Load circuit breaker positions (L1 through L10) that each directly interface with
the DC Output Terminal Block positions L1 ~ L10. Each of the 10 circuit breaker positions are
configurable as each can accept removable, replaceable bullet-style 1RU-height breakers with
current ratings up to 100A. However, despite the L1 ~ L10 load positions designed for up to 100A
each, the existing 1RU circuit breakers on the market are only rated up to 50A maximum. At least
2 vendors have similar form factor 1RU bullet-style breakers, including Heinemann and Airpax
(see Figure 6a).
Note: Any breaker position that is not filled with a circuit breaker should have a Breaker Blank
Cover installed over that position.
Figure 6a. Airpax 1RU Bullet-style 50A Circuit Breaker
3.2.1.1 DC Load Front Access Panel
Unscrew the (4) captive thumb screws
from the corners of the Access Panel
then pull it forward to remove it from
the Shelf. This provides full access to
the DC Load breakers (L1~L10) and to
the BATT 1 and BATT 2 breakers.
Figure 6b. Front Access Panel removed
