Siemens SIRIUS 3RT Series System Manual page 6

Table of contents
1.8 Mounting and disassembly.......................................................................................................... 72
1.8.1 Screw mounting .......................................................................................................................... 72
1.8.2 Snap-on mounting....................................................................................................................... 72
1.9 Connection .................................................................................................................................. 74
1.9.1 Connection systems.................................................................................................................... 74
1.9.1.1 Screw connection........................................................................................................................ 74
1.9.1.2 Spring-loaded connection ........................................................................................................... 75
1.9.1.3 Ring cable lug connection ........................................................................................................... 79
1.9.2 Conductor cross-sections............................................................................................................ 79
1.9.2.1 Conductor cross-sections for screw-type connection systems ................................................... 80
1.9.2.2 Conductor cross-sections for spring-loaded connection systems............................................... 82
1.9.2.3 Conductor cross-sections for ring cable lug connection system................................................. 84
1.9.3 Image database .......................................................................................................................... 85
1.10 Connection to the higher-level control ........................................................................................ 86
1.10.1 Connection to the higher-level control ........................................................................................ 86
1.10.2 IO-Link......................................................................................................................................... 89
1.10.2.1 Overview ..................................................................................................................................... 89
1.10.2.2 Benefits ....................................................................................................................................... 90
1.10.2.3 Applications................................................................................................................................. 91
1.10.3 AS-Interface ................................................................................................................................ 94
1.10.3.1 Overview ..................................................................................................................................... 94
1.10.3.2 Benefits ....................................................................................................................................... 95
1.10.3.3 Operating modes......................................................................................................................... 95
1.10.3.4 Process communication and field communication...................................................................... 96
1.10.3.5 System components.................................................................................................................... 97
1.10.3.6 Technical data............................................................................................................................. 98
1.10.3.7 More information ......................................................................................................................... 99
2 SIRIUS 3RT2 contactors/contactor assemblies ..................................................................................... 101
2.1 Standards .................................................................................................................................. 101
2.1.1 General regulations and standards........................................................................................... 101
2.1.2 Protective separation ................................................................................................................ 102
2.1.3 Positively driven contact elements/Mirror contacts ................................................................... 103
2.2 Product description ................................................................................................................... 104
2.2.1 Overview of the contactor range ............................................................................................... 104
2.2.2 Device versions......................................................................................................................... 104
2.2.2.1 3RH2 contactor relays............................................................................................................... 105
2.2.2.2 3RT2 power contactors ............................................................................................................. 107
2.2.2.3 3RA23 reversing contactor assemblies .................................................................................... 110
2.2.2.4 3RA24 contactor assemblies for star-delta (wye-delta) start .................................................... 111
2.2.2.5 Drive options ............................................................................................................................. 112
2.2.3 Applications............................................................................................................................... 113
2.2.4 Performance features................................................................................................................ 114
2.3 Product combinations................................................................................................................ 115
2.4 Configuration............................................................................................................................. 116
2.4.1 Overview of applications for contactors and contactor assemblies .......................................... 116
2.4.2 Drive system/Coil selection ....................................................................................................... 117
2.4.3 Application environment............................................................................................................ 118
2.4.3.1 3RH2 contactor relays............................................................................................................... 118
2.4.3.2 3RT2 power contactors ............................................................................................................. 118
2.4.3.3 Contactors for railway applications ........................................................................................... 121
2.4.3.4 Installation altitude .................................................................................................................... 122
2.4.4 Switching motorized loads ........................................................................................................ 123
6
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03