Replacement Illustration; Main Circuit Breaker - ABB ACS880-87LC-3200A Hardware Manual

1. Undo the fastening screw (Torx T10) of the clip covering the memory card and press
the card to remove it. For the card location, see the following figure.
2. Insert the new card in reverse order. Tightening torque for fastening screw is 0.7 N·m
(0.5 lbf·ft). Repeat the replacement procedure for other BCU control unit if needed.

Replacement illustration

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a
A

Main circuit breaker

For ABB-SACE main circuit breaker maintenance, refer to the manufacturer's instructions
(1SDH001000R0002).
a
b
A
2:1
c
Maintenance 89