CONTENTS
1.
1.1
Cautionary instructions for operation ................................................................................................................................................................ 1
1.2
1.3
Cautionary instructions for work ........................................................................................................................................................................ 3
2.
2.1
Cautionary instructions in general ..................................................................................................................................................................... 5
2.2
Operation ............................................................................................................................................................................................................... 6
2.2.1
Switching operation ......................................................................................................................................................................................... 6
2.2.2
Trip and reset operation .................................................................................................................................................................................. 7
2.3
2.3.1
Cautionary instructions for setting .............................................................................................................................................................. 10
2.3.2
2.3.3
2.3.4
2.3.5
[Adjustable thermal or magnetic type] ........................................................................................................................................................ 13
2.3.6
2.3.7
2.3.8
3.
3.1
Notice for selection ............................................................................................................................................................................................ 17
3.2
Normal service conditions ................................................................................................................................................................................. 17
3.3
Non-standard conditions ................................................................................................................................................................................... 18
3.4
Inspection at arrival ............................................................................................................................................................................................ 19
3.5
Conditions during transport and storage ........................................................................................................................................................ 19
3.5.1
Transport ........................................................................................................................................................................................................ 19
3.5.2
Storage ............................................................................................................................................................................................................ 19
3.6
Installation and connection ............................................................................................................................................................................... 20
3.6.1
General ............................................................................................................................................................................................................ 20
3.6.2
Installation ...................................................................................................................................................................................................... 20
3.6.3
Connection ...................................................................................................................................................................................................... 21
3.6.4
Mounting direction ......................................................................................................................................................................................... 22
3.6.5
3.6.6
3.6.7
Breaker arrangements ................................................................................................................................................................................... 26
3.6.8
Instruction for connections .......................................................................................................................................................................... 32
3.6.9
Instruction for accessories .......................................................................................................................................................................... 41
3.6.10
External accessories ..................................................................................................................................................................................... 53
4.
4.1
Initial inspection ................................................................................................................................................................................................ 73
4.2
Periodical inspection .......................................................................................................................................................................................... 77
4.3
Inspection after tripping .................................................................................................................................................................................... 77
4.4
Yardstick service life .......................................................................................................................................................................................... 78
4.5
5.
5.1
5.2
5.3
Troubleshooting of accessories ........................................................................................................................................................................ 80
5.4
Analysis of unnecessary operation ................................................................................................................................................................. 81
5.4.1
Classification of ELCB operation ................................................................................................................................................................ 81
5.4.2
Detail of operation .......................................................................................................................................................................................... 81
6.
6.1
6.2
After-sales service system ................................................................................................................................................................................ 85
Breaker mounting screws .......................................................................................................................................................................... 86
Operating force of handle .......................................................................................................................................................................... 88
Service network ........................................................................................................................................................................................... 89