
© 2021 ABB SACE Emax 2 | I 1SDH002083A1002 - ECN000119014 - Rev. A
Glossary ........................................................................................ 3
References.................................................................................... 4
1 - ABB documentation mentioned in this manual................4
Emax E4.2 circuit-breakers.......................................................... 5
1 - Contents .........................................................................5
Overview............................................................................... 5
Integrated informations......................................................... 5
recipients.............................................................................. 5
Specifications and supporting documents ............................ 5
Design notes......................................................................... 5
2 - Safety .............................................................................6
Warnings............................................................................... 6
3 - Regulations.....................................................................7
Standards ............................................................................. 7
Management operations .............................................................. 8
1 - Transport and checking on receipt..................................8
Introduction .......................................................................... 8
Weight of the circuit-breakers with packaging ...................... 8
Transport of the packaged circuit-breaker ........................... 8
Identification of packaging.................................................... 9
Packaging checks................................................................. 9
Damage and Discrepancy Report ......................................... 9
Storage method .................................................................. 10
2 - Unpacking and handling ...............................................11
Opening the packaging....................................................... 11
Disposal of packing materials ............................................. 12
Weight of circuit-breakers without packaging ..................... 12
Lift the fixed circuit breaker or the moving part of a
withdrawable circuit-breaker............................................... 13
3 - Description ................................................................... 14
Description of switch disconnector..................................... 14
Front description................................................................. 15
Description of IEC+CCC specification data plate................ 16
Description of UL+IEC specification data plate................... 16
Description of UL+IEC+CCC specification data plate ......... 17
Manual operations for opening and closing the circuit-
breaker ............................................................................... 18
Mechanical status indicators .............................................. 19
Circuit breaker racking-in/racking-out operations ............... 20
Mechanical position indicators ........................................... 24
4 - Environmental conditions..............................................25
5 - Installation ....................................................................25
Warnings and precautions before the installation................ 25
Mounting of the fixed circuit-breaker .................................. 25
Mounting anti-insertion locks.............................................. 26
Mounting the fixed part of the withdrawable circuit-breaker 26
Types of terminal................................................................. 27
Change of position of the vertical/horizontal terminals ....... 28
Clearances.......................................................................... 28
Phase separators................................................................ 28
Connection to the power circuit.......................................... 28
Overall dimensions ............................................................. 30
Positioning anchor plates ................................................... 31
Grounding........................................................................... 32
Accessories ................................................................................ 33
1 - Overview.......................................................................33
Overview and connection.................................................... 33
2 - Wiring diagrams............................................................34
General wiring diagrams ..................................................... 34
Mechanical accessories...................................................... 37
Putting into service and maintenance....................................... 38
1 - Putting into service .......................................................38
Introduction ........................................................................ 38
General checks................................................................... 38
Check accessories.............................................................. 39
Final check list.................................................................... 41
2 - Identification of alarms or failures .................................42
Faults, causes and remedies............................................... 42
3 - Maintenance .................................................................44
Safety standards................................................................. 44
Skilled personnel ................................................................ 44
Circuit-breaker life .............................................................. 44
Maintenance schedule ........................................................ 45
4 - First level maintenance .................................................46
Preliminary operations ........................................................ 46
Inspections and general cleaning........................................ 46
Circuit-breaker connections and connections between circuit-
breaker and switchboard .................................................... 46
Disassembly operations...................................................... 47
Cleaning and lubrication of the operating mechanism ........ 48
Inspection of electrical and mechanical accessories........... 48
Final checks........................................................................ 49
Interlock check ................................................................... 49
5 - Second level maintenance ............................................50
Preliminary operations ........................................................ 50
Inspections and general cleaning........................................ 50
Circuit-breaker connections and connections between circuit-
breaker and switchboard .................................................... 51
Disassembly operations...................................................... 52
Cleaning and lubrication of the operating mechanism ........ 54
Inspection of electrical and mechanical accessories........... 55
Check for wear on the contacts .......................................... 56
Final checks........................................................................ 57
Interlock check ................................................................... 58
6 - Decommissioning and treatment at end of life ..............59
Safety standards................................................................. 59
Trained personnel ............................................................... 59
End of life treatment for circuit-breaker materials ............... 59
Disposal of packing materials ............................................. 59