Siemens SENTRON - Table of Contents

Manual, 08/2017, L1V30368969104A-02
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Table of contents
1 Introduction ............................................................................................................................................. 9
2 General information .............................................................................................................................. 11
2.1 Certification ............................................................................................................................. 11
3 Product information ............................................................................................................................... 13
3.1 Product description ................................................................................................................. 13
3.1.1 Design of the 3KC4 and 3KC8 transfer switching equipment................................................. 14
3.1.2 Current ratings of the 3KC4 and 3KC8 transfer switching equipment .................................... 18
3.2 Product family ......................................................................................................................... 21
3.2.1 The product families 3KC4 and 3KC8 from 250 A to 3200 A ................................................. 21
3.2.2 Use of 3KC4 and 3KC8 transfer switching equipment ........................................................... 22
3.2.3 Properties of the 3KC4 and 3KC8 transfer switching equipment ........................................... 22
3.2.4 Application areas of the 3KC4 and 3KC8 transfer switching equipment ................................ 23
4 Functions .............................................................................................................................................. 25
5 Mounting ............................................................................................................................................... 27
5.1 Mounting position .................................................................................................................... 27
5.2 Installing the 3KC4 and 3KC8 transfer switching equipment.................................................. 27
5.3 Dimensions of the cover frame for door cut-out ..................................................................... 30
6 Connection ........................................................................................................................................... 31
6.1 Network types ......................................................................................................................... 31
6.1.1 Three-phase 4-wire network with neutral (3PH + N) .............................................................. 32
6.1.1.1 Circuit diagram for the 3KC4 transfer switching equipment - 4-pole transfer switching
equipment ............................................................................................................................... 32
6.1.1.2 Circuit diagram for the 3KC8 transfer switching equipment - 4-pole transfer switching
equipment ............................................................................................................................... 33
6.1.2 Three-phase 3-wire network without neutral (3PH) ................................................................ 33
6.1.2.1 Circuit diagram for the 3KC4 transfer switching equipment - 3-pole transfer switching
equipment ............................................................................................................................... 34
6.1.2.2 Circuit diagram for the 3KC8 transfer switching equipment - 4-pole transfer switching
equipment ............................................................................................................................... 35
6.1.2.3 Circuit diagram for the 3KC8 transfer switching equipment - 3-pole transfer switching
equipment ............................................................................................................................... 36
6.1.3 Single-phase network with neutral (1PH + N) ......................................................................... 37
6.1.3.1 Circuit diagram for the 3KC4 transfer switching equipment - 3-pole transfer switching
equipment ............................................................................................................................... 37
6.1.3.2 Circuit diagram for the 3KC8 transfer switching equipment - 3-pole transfer switching
equipment ............................................................................................................................... 38