4
INSTRUCTION HANDBOOK
If disassembled parts require a separate treatment a specific indication is provided inside each phase
with reason why for the separate treatment (see Chapter 6).
Description Position inside circuit breaker Quantity
Cap kits In correspondence of circuit breaker connection terminals
Support Mounted on the upper part of the circuit breaker
Cables protection Mounted on the back part of the trip unit
Rating plug case Mounted on the front of the trip unit
Rating plug printed circuit board In the rating plug case
Backplane Mounted on the back part of the trip unit
Trip unit case On the trip unit
Trip unit back cover On the trip unit
Trip unit printed circuit board In the trip unit
Left MID cover Mounted on the left part of the circuit breaker
Left MID Mounted on the left part of the circuit breaker
Left base Mounted on the left part of the circuit breaker
Block lever Mounted on the left part of the circuit breaker
Trip coil In the trip coil group
Trip coil group Mounted on the left part of the circuit breaker
Trip test support Mounted on the right part of the circuit breaker
MID Mounted on the right part of the circuit breaker
SY lever Mounted on the MID
Wires cover Mounted on the left part of the circuit breaker
Wiring Mounted on the left part of the circuit breaker
Operating mechanism Mounted on the center of the circuit breaker
Unlocking shaft appendices Mounted on the pin of the operating mechanism
Lever extension Mounted on the front toggle
Protections Mounted on the upper case assembly
Fixed contacts protections Mounted on the fixed contacts
Covers Below the sensors
Sensors In the bottom part of the circuit breaker
Insulation protections On the moving contacts assembly
6. DISASSEMBLY PROCESS
Circuit breakers disassembly process is constituted by a sequence of operations to be performed on
products after their dismounting from original installation. For each phase following information are
provided:
applicable)
5. SEPARATE TREATMENT
Table below lists parts requiring a separate treatment adding information about part location inside
circuit breakers and related quantity.
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