Siemens SIRIUS 3RT2.1 Series System Manual

Table of contents
SIRIUS Innovations
10 System Manual, 01/2011, A8E56203870002-03
3.5 Planning/configuring.................................................................................................................. 329
3.5.1 Selecting solid-state switching devices..................................................................................... 329
3.5.2 Config
uration: Selecting solid-state contactors for motors ....................................................... 330
3.5.3 Short-c
ircuit protection .............................................................................................................. 334
3.5.3.1 Mounting a
ccessories for the load feeder conforming to IEC................................................... 334
3.5.3.2 Mounting a
ccessories for the load feeder conforming to UL .................................................... 336
3.6 Application pl
anning.................................................................................................................. 339
3.6.1
Application areas
....................................................................................................................... 340
3.6.1.1 Switc
hing motors....................................................................................................................... 340
3.6.1.2 Use in a phot
ovoltaic plant........................................................................................................ 340
3.7 Mounting...................................................
................................................................................. 341
3.7.1
Mounting inst
ructions ................................................................................................................ 341
3.7.2 Sc
rew mounting ........................................................................................................................ 343
3.7.3 Snapping ont
o/off DIN rail (snap-on mounting)......................................................................... 343
3.8 Connec
tion ................................................................................................................................ 344
3.8.1
Solid-s
tate contactor ................................................................................................................. 344
3.8.2 Solid-s
tate reversing contactor ................................................................................................. 345
3.9 FAQs
- Frequently asked questions.......................................................................................... 346
3.10
Ac
cessories............................................................................................................................... 347
3.10.1
Ac
cessories overview................................................................................................................ 347
3.10.2 Ins
ulating stop ........................................................................................................................... 347
3.10.2.1 Des
cription ................................................................................................................................ 347
3.10.3 Link
module for motor starter protector..................................................................................... 348
3.10.3.1 Des
cription ................................................................................................................................ 348
3.10.3.2 Mounting/Disassembl
y.............................................................................................................. 349
3.11 T
echnical data........................................................................................................................... 350
3.11.1
General data
............................................................................................................................. 350
3.11.2 Conduc
tor cross-sections for solid-state contactors ................................................................. 352
3.
11.3 Conductor cross-sections for solid-state reversing contactors ................................................. 353
3.11.4 Solid-s
tate contactors 3RF34, 3-phase, screw connection....................................................... 354
3.11.5 Solid-s
tate contactors 3RF34, 3-phase, spring-loaded terminals............................................. 355
3.11.6 Solid-s
tate contactors - fuseless design with CLASS 10 motor starter protector ..................... 356
3.11.7 Solid-s
tate contactors - fused design with 3RB30 overload relay............................................. 357
3.11.8 Solid-s
tate contactors - main circuit, 2-phase controlled .......................................................... 358
3.11.9 Solid-s
tate contactors with control circuit.................................................................................. 358
3.11.10 S
olid-state reversing contactor with integration of four current paths to form a single
reversing circuit ......................................................................................................................... 359
3.11.11
S
olid-state contactors - fuseless design with CLASS 10 motor starter protector ..................... 359
3.11.12
Solid-state contactor - fused design with 3RB30 overload relay .............................................. 360
3.11.13 S
olid-state reversing contactor - main circuit, 2-phase controlled ............................................ 360
3.11.14
Solid-state reversing contactor with control circuit.................................................................... 361
3.11.15 C
haracteristics - switching frequency/load................................................................................ 362
3.11.15.1 Charac
teristics for the solid-state contactor......................................................................... 362
3.11.15.2
Characteristics for the solid-state reversing contactor......................................................... 367
3.12 D
imension drawings (dimensions in mm) ................................................................................. 372
3.12.1
Solid-s
tate switching devices .................................................................................................... 372
3.12.2 Link
module for motor starter protector..................................................................................... 373
3.13 C
ircuit diagrams ........................................................................................................................ 374

Siemens SIRIUS 3RT2.1 Series Specifications

General

Brand	Siemens
Model	SIRIUS 3RT2.1 Series
Category	Industrial Equipment
Language	English