Siemens SIRIUS 3RT - Page 6

Table of contents
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
6 Manual, 09/2017, A5E03656507120A/RS-AE/006
4.3 Reference ............................................................................................................................... 63
5 Product combinations............................................................................................................................ 65
6 Configuration ........................................................................................................................................ 67
6.1 Overview of applications for contactors and contactor assemblies ....................................... 67
6.2 SIRIUS system configurator ................................................................................................... 68
6.3 Operating mechanism system / coil selection 3RT contactors and 3RH2 contactor
relays ...................................................................................................................................... 69
6.3.1 Operating mechanism system / coil selection 3RT2 contactors and 3RH2 contactor
relays ...................................................................................................................................... 69
6.3.2 Operating mechanism system / coil selection 3RT1 contactors ............................................ 70
6.3.2.1 Conventional operating mechanism....................................................................................... 72
6.3.2.2 Solid-state operating mechanism for standard contactors .................................................... 73
6.3.2.3 Solid-state operating mechanism for standard contactors with remaining lifetime signal
RLT ........................................................................................................................................ 77
6.3.2.4 Solid-state operating mechanism for contactors with extended operating range and rail
applications ............................................................................................................................ 83
6.3.2.5 Solid-state operating mechanism for contactors with fail-safe control input .......................... 85
6.3.2.6 Typical circuit diagrams (standard contactors) ...................................................................... 87
6.4 Application environment ......................................................................................................... 89
6.4.1 3RH2 contactor relays ........................................................................................................... 89
6.4.2 3RT power contactors ............................................................................................................ 90
6.4.3 Contactors for railway applications ........................................................................................ 93
6.4.4 Installation altitude ................................................................................................................. 94
6.5 Switching motorized loads ..................................................................................................... 95
6.6 Switching resistive loads ...................................................................................................... 100
6.7 Changing the polarity of hoisting gear motors ..................................................................... 103
6.8 Switching in the auxiliary circuit ........................................................................................... 105
6.9 Switching of capacitive loads ............................................................................................... 106
6.10 Contactors with extended operating range .......................................................................... 114
6.10.1 Contactors for rail applications according to IEC 60077-2 .................................................. 114
6.10.2 Coupling relays .................................................................................................................... 116
6.10.2.1 Technical background information ....................................................................................... 117
6.11 Contactors in safety applications ......................................................................................... 118
6.11.1 Safety notes ......................................................................................................................... 118
6.11.1.1 General safety notes ............................................................................................................ 118
6.11.1.2 Intended use ........................................................................................................................ 119
6.11.1.3 Current information about operational safety ....................................................................... 121
6.11.1.4 Security information ............................................................................................................. 121
6.11.2 Examples/applications ......................................................................................................... 122
6.11.2.1 User responsibility for system design and function .............................................................. 122
6.11.2.2 Safety information ................................................................................................................ 123
6.11.2.3 Layout of application examples ............................................................................................ 124
6.11.2.4 P-switching fail-safe outputs ................................................................................................ 125
6.11.2.5
PM-switching fail-safe outputs ............................................................................................. 132
6.12 Operation of a motor in two directions of rotation (reversing contactor assembly) ............. 140