Table of contents
2.10
Communication ................................................................................................................. 80
2.11
Accessories overview ......................................................................................................... 83
3
Accessories .......................................................................................................................................... 85
3.1
3.1.1
Insulating measures ........................................................................................................... 87
3.1.2
3.1.3
3.2
3.2.1
3.2.2
3.2.3
3.3
3.4
Rotary operators .............................................................................................................. 109
3.4.1
3.4.2
3.5
External accessories ......................................................................................................... 112
3.5.1
3.5.2
Description ...................................................................................................................... 112
3.5.3
3.5.3.1
3.5.3.2
3.5.3.3
3.5.4
Locking and interlocking .................................................................................................. 115
3.5.5
3.6
3.6.1
Overview ......................................................................................................................... 124
3.6.2
3.6.3
3.6.4
TD420 test device ............................................................................................................ 126
4
Application planning ......................................................................................................................... 129
4.1
4.1.1
Mounting position ........................................................................................................... 129
4.1.2
Degree of protection ........................................................................................................ 132
4.1.3
Power loss ....................................................................................................................... 132
4.1.4
Ambient conditions.......................................................................................................... 132
4.1.5
Current reduction ............................................................................................................ 133
4.1.5.1
4.1.5.2
4.1.6
Use in IT systems ............................................................................................................. 137
4.1.7
4.1.8
4.2
4.2.1
4.2.2
4.2.3
Armature plates ............................................................................................................... 149
4
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Equipment Manual, 10/2023, L1V30499596002-03