Table of contents
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Introduction ........................................................................................................................................... 6
1.1
Technical support ................................................................................................................ 6
1.2
Safety instructions ............................................................................................................... 7
1.3
Standards ............................................................................................................................ 8
1.4
Transport ............................................................................................................................. 8
2
Description ........................................................................................................................................... 10
2.1
Mechanical components .................................................................................................... 10
2.1.1
Design ............................................................................................................................... 10
2.1.1.1
Circuit Breaker ................................................................................................................... 10
2.1.1.2
Guide frame ...................................................................................................................... 12
2.1.2
2.1.2.1
2.1.3
2.1.4
Operation .......................................................................................................................... 16
2.1.4.1
Installation ........................................................................................................................ 16
2.1.4.2
2.1.4.3
2.1.4.4
2.1.4.5
2.1.4.6
Closing and opening .......................................................................................................... 24
2.1.4.7
Commissioning checklist .................................................................................................... 28
2.1.5
Connection ........................................................................................................................ 29
2.1.5.1
Main connections .............................................................................................................. 29
2.1.5.2
2.1.5.3
2.2
Electronic components ...................................................................................................... 39
2.2.1
2.2.2
ETU350WJ ......................................................................................................................... 41
2.2.3
ETU360WJ ......................................................................................................................... 44
2.2.4
Indicators on the ETU ......................................................................................................... 48
2.2.5
Protection functions ........................................................................................................... 50
2.2.5.1
2.2.5.2
2.2.5.3
2.2.5.4
2.2.5.5
2.2.5.6
2.2.6
Additional functions........................................................................................................... 52
2.2.7
2.2.8
3WJ Air Circuit breakers
Operating Instructions, 12/2022, L1V30828903001-01
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