5
Disassembly instruction emaX 2 e4.2
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).
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:
• Part/parts to be disassembled (title of the phase)
• Tools to be used
• Description of actions to be performed
• Pictures showing actions to be performed
• List, quantity and picture of disassembled parts with an indication about separate treatment (when
applicable)
• In case of potential hazards signal below is reported
Description
Position inside circuit breaker
Quantity
Auxiliary flat assembly
Mounted on the MID
1
RTC micro lever
Mounted in the MID
1
MID main structure
Mounted in the MID
1
Springs charging lever
Mounted on the operating mechanism
1
Operating mechanism
Mounted on the center of the circuit breaker
1
Auxiliary contacts cam
Mounted on operating shaft assembly
1
Cam
Mounted on operating shaft assembly
1
Lever
Mounted on operating shaft assembly
1
Measuring module connector
Mounted behind the trip unit and connected with poles
1
Protections
Mounted in correspondence of rear terminals
6
Spacers
Mounted in correspondence of rear terminals
30*
Arc quenchings
Mounted in arcing chambers
6
Spacers
Mounted in arcing chambers
3
Sensors plugs
Mounted in poles
3
Sensors
Mounted in poles
3
Cables
Mounted in poles
3
Insulating protection
Mounted in poles
3
Insulation protection
Mounted in poles
3
Contacts spacer
Mounted in poles
3
*For circuit breakers in UL version characterized by a current rating up to 2500A
