Table of contents
SIRIUS - SIRIUS 3RT Contactors/Contactor assemblies
Manual, 09/2017, A5E03656507120A/RS-AE/006
7
6.12.1 Reference ............................................................................................................................. 146
6.13 Starting three-phase motors with reduced starting current peaks (contactor assembly
for star-delta (wye-delta) start) .............................................................................................. 147
6.13.1 Reference ............................................................................................................................. 152
6.13.2 Technical background information ........................................................................................ 153
6.14 Using long control cables ...................................................................................................... 158
6.15 Configuration information for use downstream of frequency converters .............................. 164
6.16 Contact service life of auxiliary and main contacts ............................................................... 166
6.16.1 3RT2 power contactors (sizes S00 to S3) ............................................................................ 166
6.16.1.1 Contact service life of auxiliary and main contacts (sizes S00 and S0) ............................... 166
6.16.1.2 Contact service life of auxiliary and main contacts (size S2)................................................ 169
6.16.1.3 Contact service life of auxiliary and main contacts (size S3)................................................ 171
6.16.2 3RT26 capacitor contactors (sizes S00 to S3) ..................................................................... 173
6.16.2.1 Contact service life of auxiliary and main contacts ............................................................... 173
6.16.3 3RT10 power contactors and 3RT12 vacuum contactors (sizes S6 to S12) ........................ 175
6.16.3.1 Mechanical endurance .......................................................................................................... 175
6.16.3.2 Electrical endurance ............................................................................................................. 175
7 Mounting ............................................................................................................................................. 179
7.1 Warning notice ...................................................................................................................... 179
7.2 Mounting ............................................................................................................................... 179
7.2.1 Mounting options ................................................................................................................... 179
7.2.2 Mounting position .................................................................................................................. 180
7.2.3 Mounting on mounting plate / wall mounting ........................................................................ 181
7.2.4 Snapping onto DIN rail (snap-on mounting) ......................................................................... 185
7.3 Replacing solenoid coils ....................................................................................................... 188
7.3.1 Replacing solenoid coils for size S0 ..................................................................................... 188
7.3.2 Replacing solenoid coils for size S2 ..................................................................................... 191
7.3.3 Replacing solenoid coils for size S3 ..................................................................................... 196
7.3.4 Replacing solenoid coils for sizes S6-S12 ............................................................................ 202
7.4 Contact piece replacement (sizes S2 to S12) ...................................................................... 205
7.4.1 Contact piece replacement (size S2) .................................................................................... 205
7.4.2 Contact piece replacement (size S3) .................................................................................... 211
7.4.3 Contact piece replacement (size S6) .................................................................................... 217
7.4.4 Contact piece replacement (size S10 and S12) ................................................................... 219
7.5 Replacing the vacuum interrupters (sizes S10 and S12) ..................................................... 222
8 Connection ......................................................................................................................................... 227
8.1 Warning notice ...................................................................................................................... 227
8.2 Conductor cross-sections ..................................................................................................... 230
8.2.1 Conductor cross-sections for screw-type connection systems ............................................. 230
8.2.2 Conductor cross-sections for spring-loaded connection systems ........................................ 238
8.2.3 Conductor cross-sections for ring cable lug connection system .......................................... 240
9 Accessories ........................................................................................................................................ 243
9.1 Overview of accessories for 3RT2 contactors ...................................................................... 243
9.1.1 Overview of accessories for 3RT2 contactors ...................................................................... 243
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