Siemens SENTRON 3KC0 User manual

___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
___________________
SENTRON
Transfer switching equipment and
load transfer switches
3KC0 manual transfer switching
equipment
Manual
09/2018
L1V30368969105
-01
Introduction
1
General information
2
Product information
3
Functions
4
Mounting
5
Connection
6
Operation
7
Accessories
8
Service and maintenance
9
Technical data
10
Dimension drawings
11
Appendix
A
ESD guidelines
B
List of abbreviations
C

Siemens AG
Division Energy Management
Postfach 32 20
91050 ERLANGEN
GERMANY
Document order number: 3ZW1012-3KC03-0AC1
Ⓟ
01/2019 Subject to change
Copyright © Siemens AG 2018.
All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01 3
Table of contents
1 Introduction................................................................................................................................................ 7
1.1 Purpose of this manual .............................................................................................................7
1.2 Target groups and required basic knowledge ..........................................................................7
1.3 Used symbols ...........................................................................................................................8
2 General information ................................................................................................................................... 9
2.1 Standards..................................................................................................................................9
2.2 Certification ...............................................................................................................................9
3 Product information.................................................................................................................................. 11
3.1 Product description .................................................................................................................11
3.1.1 Design.....................................................................................................................................11
3.1.2 Current ratings ........................................................................................................................12
3.2 Product family .........................................................................................................................14
3.2.1 Use..........................................................................................................................................14
3.2.2 Properties................................................................................................................................14
3.2.3 Applications.............................................................................................................................15
3.2.4 Structure of the article numbers..............................................................................................16
4 Functions ................................................................................................................................................. 19
4.1 Function ..................................................................................................................................19
5 Mounting.................................................................................................................................................. 21
5.1 Clearances for mounting.........................................................................................................21
5.2 Mounting positions..................................................................................................................24
5.2.1 Mounting position for sizes 1 and 2 ........................................................................................24
5.2.2 Mounting position for sizes 3, 4 and 5 ....................................................................................24
5.3 Mounting the 3KC0 transfer switching equipment..................................................................25
5.3.1 DIN rail mounting for sizes 1 and 2.........................................................................................25
5.3.2 Removal from DIN rail for sizes 1 and 2 .................................................................................26
5.3.3 Floor mounting for sizes 1 and 2 ............................................................................................27
5.3.4 Floor mounting for sizes 3, 4 and 5 ........................................................................................29
5.4 Affixing labels..........................................................................................................................30
6 Connection .............................................................................................................................................. 33
6.1 Network types and applications ..............................................................................................33
6.1.1 Transfer switching equipment.................................................................................................33
6.1.2 Load transfer switches............................................................................................................35
6.2 Connecting to the circuit .........................................................................................................37
6.2.1 Load connection......................................................................................................................37
6.2.2 Arrangement of the power supply systems ............................................................................37
6.2.3 Connecting the terminals for sizes 1 and 2 ............................................................................38

Table of contents
3KC0 manual transfer switching equipment
4Manual, 09/2018, L1V30368969105-01
6.2.4 Connecting transfer switching equipment sizes 1 and 2 ....................................................... 39
6.2.4.1 Connecting a bridging bar to sizes 1 and 2 ........................................................................... 39
6.2.4.2 Connecting transfer switching equipment sizes 1 and 2 to the circuit................................... 41
6.2.5 Connecting the terminals for sizes 3, 4 and 5........................................................................ 44
6.2.6 Connecting transfer switching equipment sizes 3, 4 and 5 ................................................... 44
6.2.6.1 Connecting a bridging bar to sizes 3, 4 and 5 ....................................................................... 44
6.2.6.2 Connecting transfer switching equipment sizes 3, 4 and 5 to the circuit............................... 48
7 Operation................................................................................................................................................. 51
7.1 Operating transfer switching equipment sizes 1 and 2.......................................................... 51
7.2 Operating transfer switching equipment sizes 3, 4 and 5...................................................... 53
8 Accessories ............................................................................................................................................. 55
8.1 Component overview for sizes 1 and 2.................................................................................. 56
8.2 Component overview for sizes 3, 4 and 5.............................................................................. 57
8.3 Assembly kit for floor mounting for sizes 1 and 2 .................................................................. 58
8.4 Bridging bars.......................................................................................................................... 58
8.5 Additional poles for sizes 1 and 2 .......................................................................................... 61
8.5.1 Mounting additional poles for sizes 1 and 2........................................................................... 62
8.6 Auxiliary switches and auxiliary switch modules.................................................................... 64
8.6.1 Mounting auxiliary switches on sizes 1 and 2........................................................................ 67
8.6.2 Removing auxiliary switches from sizes 1 and 2 ................................................................... 68
8.6.3 Mounting auxiliary switches on sizes 3, 4 and 5.................................................................... 68
8.6.4 Removing auxiliary switches from sizes 3, 4 and 5 ............................................................... 71
8.7 Door-coupling rotary operating mechanism of the 8UD1 series............................................ 72
8.7.1 Component overview ............................................................................................................. 73
8.7.2 Types of delivery and versions .............................................................................................. 74
8.7.3 Mounting the door-coupling rotary operating mechanism ..................................................... 74
8.7.3.1 Use the hole drilling template for the cabinet door ................................................................ 74
8.7.3.2 Mounting the handle on the cabinet door .............................................................................. 76
8.7.3.3 Calculating shaft length and cutting shaft to size................................................................... 77
8.7.3.4 Attaching the door-coupling driver to the shaft ...................................................................... 79
8.7.4 Function and operation .......................................................................................................... 83
8.7.4.1 Door padlocking ..................................................................................................................... 83
8.7.4.2 Tolerance compensation........................................................................................................ 87
8.7.4.3 Padlocking.............................................................................................................................. 88
8.7.4.4 Assigning the switch position between the 8UD1 handle and 3KC0..................................... 90
8.7.5 Accessories for the 8UD1 series............................................................................................ 92
8.7.5.1 Handles .................................................................................................................................. 92
8.7.5.2 Coupling drivers ..................................................................................................................... 93
8.7.5.3 Extension shafts..................................................................................................................... 94
8.7.5.4 Shaft coupling ........................................................................................................................ 95
8.7.5.5 Shaft jack for 3KC0 sizes 1 and 2.......................................................................................... 96
8.7.5.6 Inscription label ...................................................................................................................... 97
8.8 Direct operating mechanism .................................................................................................. 98
8.8.1 Direct operating mechanism for sizes 1 and 2....................................................................... 98
8.8.1.1 Mounting the direct operating mechanism on sizes 1 and 2 ................................................. 99
8.8.1.2 Removing the direct operating mechanism from sizes 1 and 2........................................... 100

Table of contents
3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01 5
8.8.2 Direct operating mechanism for sizes 3, 4 and 5 .................................................................100
8.8.2.1 Mounting the direct operating mechanism on sizes 3, 4 and 5 ............................................101
8.8.2.2 Removing the direct operating mechanism from sizes 3, 4 and 5........................................103
8.8.3 Padlocking mode for direct operating mechanism................................................................103
8.8.3.1 Padlocking mode of direct operating mechanism for sizes 1 and 2 .....................................104
8.8.3.2 Padlocking mode of direct operating mechanism for size 3 .................................................104
8.8.3.3 Padlocking mode of direct operating mechanism for sizes 4 and 5 .....................................105
8.9 Phase barriers.......................................................................................................................105
8.9.1 Mounting phase barriers .......................................................................................................106
8.10 Terminal cover ......................................................................................................................108
8.10.1 Installing the terminal covers ................................................................................................109
8.10.2 Side panel covers for terminal covers...................................................................................111
8.11 Spare parts ...........................................................................................................................113
9 Service and maintenance ...................................................................................................................... 115
10 Technical data ....................................................................................................................................... 117
10.1 Technical specifications of 3KC0 from 16 to 160 A ..............................................................117
10.2 Technical specifications of 3KC0 from 200 to 500 A............................................................120
10.3 Technical specifications of 3KC0 from 630 to 1600 A..........................................................123
11 Dimension drawings .............................................................................................................................. 127
11.1 Dimension drawings..............................................................................................................127
11.2 Dimension drawing of additional poles for sizes 1 and 2......................................................129
11.3 Dimension drawing of auxiliary switch for sizes 1 and 2 ......................................................129
A Appendix................................................................................................................................................ 131
A.1 Environmental conditions......................................................................................................131
A.2 Operating conditions.............................................................................................................131
A.2.1 Temperature .........................................................................................................................131
A.2.2 Humidity ................................................................................................................................131
A.2.3 Altitude conditions.................................................................................................................132
A.3 Storage conditions ................................................................................................................132
A.3.1 Temperature .........................................................................................................................132
A.3.2 Storage conditions ................................................................................................................132
A.3.3 Storage position ....................................................................................................................132
A.3.4 Dimensions and weight of the transfer switching equipment ...............................................133
B ESD guidelines ...................................................................................................................................... 135
B.1 Introduction to ESD...............................................................................................................135
B.2 Electrostatic sensitive devices (ESD) ...................................................................................135
C List of abbreviations............................................................................................................................... 137
C.1 List of abbreviations..............................................................................................................137
Index...................................................................................................................................................... 139

3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01 7
Introduction
1
1.1
Purpose of this manual
This manual describes the functions, commissioning and operation of the following transfer
switching equipment:
●3KC0 manual transfer switching equipment (MTSE)
(MTSE =
M
anually Operated
T
ransfer
S
witching
E
quipment)
This manual describes the following topics:
●Product specifications
●Mounting
●Connection
●Operation
●Commissioning
●Accessories
●Corrective maintenance and fault rectification
●Application examples
1.2
Target groups and required basic knowledge
This manual is intended for:
●Users
●Electrically skilled persons
●Switchgear manufacturers
●Maintenance personnel
A general knowledge of low-voltage power distribution is required to understand this manual.
Scale
The diagrams are not shown in the original size (1:1 scale).
Technical Support
You can find further support on the Internet (https://www.siemens.com/lowvoltage/technical-
support).

Introduction
1.3 Used symbols
3KC0 manual transfer switching equipment
8Manual, 09/2018, L1V30368969105-01
Applicable documents
You can find more information on the Internet via the following link:
3KC0 manual transfer switching equipment
(https://support.industry.siemens.com/cs/products?mfn=ps&lc=en-US)
1.3
Used symbols
Symbol
Meaning
Symbol
Meaning
Pliers OK
Hexagon socket wrench Not OK
Cross-tip screwdriver PZ Lock
Wrench Click to snap
Graver Solid conductor
Cross-tip screwdriver PH Stranded conductor
Slotted screwdriver Measure
Trash bin

3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01 9
General information
2
2.1
Standards
The transfer switching equipment and its accessories comply with the following international
standards:
Standard
Designation
IEC 60269-1
Low-voltage fuses – Part 1: General requirements
IEC 60269-2 Low-voltage fuses - Part 2: Supplementary requirements for fuses for use by qualified electrical
technicians or electrically trained persons (fuses predominantly for industrial use)
IEC 60947-1 Low-voltage switchgear and controlgear – Part 1: General rules
IEC 60947-3 Low-voltage switchgear and controlgear – Part 3:
•Switches
•Disconnectors
•Switch-disconnectors
•Fuse-combination units
IEC 60947-5-1 Low-voltage switchgear and controlgear – Part 5-1: Control circuit devices and switching elements
– electromechanical control circuit devices
IEC 60947-6-1 Low-voltage switchgear and controlgear – Part 6-1: Multiple function equipment – Transfer switch-
ing equipment
IEC 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use – Part
3-1: Conformity verification report for IEC 61010-1:2001 – General requirements
IEC 61326-1 Electrical equipment for measurement, control and laboratory use – EMC requirements – Part 1:
General requirements
2.2
Certification
You can find the current certificates for this product in the Siemens Industrial Online Support
(https://support.industry.siemens.com/cs/ww/en/ps/cert).

3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01 11
Product information
3
3.1
Product description
3.1.1
Design
Sizes 1 and 2
①
Box terminals for connection of
source I
⑥
Switching unit
②
Plug-in assembly for rotary operating
mechanism
⑦
Switch position indicator
③
Safety locking mechanism for connecting
the cables in the box terminal
⑧
Fixing bolt
④
Box terminals for connection of
source II
I Switch I
⑤
Side panel cover
II
Switch II

Product information
3.1 Product description
3KC0 manual transfer switching equipment
12 Manual, 09/2018, L1V30368969105-01
Sizes 3, 4 and 5
①
Switching unit
⑥
Plug-in assembly for rotary operating
mechanism
②
Connecting terminals of source II
⑦
Cover
③
Connecting terminals of source I
I
Switch I
④
Plug-in assembly for terminal co-
vers/phase barriers
II Switch II
⑤
Assembly for mounting
3.1.2
Current ratings
Size
1
2
3
4
5
Rated current (A)
16 … 63
80 … 160
200 … 400
500 … 800
1000 … 1600
Number of poles
3
✓
✓
✓
✓
✓
4
✓
✓
✓
✓
✓
Position of operating mechanism module
Front operating mechanism,
center
✓✓– – –
Front operating mechanism,
left
– – ✓✓✓

Product information
3.1 Product description
3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01 13
Size
1
2
3
4
5
Rated current (A)
16 … 63
80 … 160
200 … 400
500 … 800
1000 … 1600
Type of mounting
Floor mounting (wall mount-
ing)
✓* ✓* ✓✓✓
DIN rail mounting
✓
✓
–
–
–
Connections
Flat terminal
–
–
✓
✓
✓
Box terminal
✓
✓
–
–
–
* You can find more information in chapter Component overview for sizes 1 and 2 (Page 56).
Sizes
The figures below show the sizes of the transfer switching equipment depending on the
current rating:
3-pole
4-pole
Current rating (A)
Size 1
•16
•32
•63
Size 2
•80
•100
•125
•160
Size 3
•200
•250
•315
•400

Product information
3.2 Product family
3KC0 manual transfer switching equipment
14 Manual, 09/2018, L1V30368969105-01
3-pole
4-pole
Current rating (A)
Size 4
•500
•630
•800
Size 5
•1000
•1250
•1600
3.2
Product family
3.2.1
Use
The 3KC0 transfer switching equipment is used in power supply networks for load transfers
between the normal power source and an alternative power source with an interrupted
supply at current ratings up to 1600 A.
The 3KC0 transfer switching equipment can also be used as a load transfer switch for
switching between two loads.
3.2.2
Properties
●3 and 4-pole transfer switching equipment for AC applications
●5 sizes:
Sizes 1 and 2: 16 to 160 A (operating mechanism at center)
Sizes 3, 4 and 5 200 to 1600 A (operating mechanism on the left)
●Front operating mechanism
●Modular retrofittable additional poles (4th contact) for sizes 1 and 2
●Direct operating mechanism and door-coupling operating mechanism available as
accessories in gray or red/yellow.

Product information
3.2 Product family
3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01 15
●Lockable handle
●Floor mounting or DIN rail mounting (up to 160 A)
3.2.3
Applications
Application areas
The 3KC0 transfer switching equipment can be used in residential/non-residential, industrial
and infrastructure applications.
Non-residential/residential
●Safety devices in high buildings
●Computing centers (e.g. in banks, insurance companies)
●Fire pumps, air conditioning systems, cold rooms
●Lighting systems in shopping malls
Industry
●Production lines in continuous operation
●Engine rooms
●Ancillary systems in crucial thermal power plants
●Pumps
●Cooling systems
●Fans
Infrastructure
●Installations in ports and loading stations
●Airports
●Lighting

Product information
3.2 Product family
3KC0 manual transfer switching equipment
16 Manual, 09/2018, L1V30368969105-01
3.2.4
Structure of the article numbers
Article numbers for transfer switching equipment
Serial
No.
Description
Value
Explanation
①Number of poles 3
4
•3-pole
•4-pole
②
Rated current 16 •16 A
22 •32 A
26 •63 A
28 •80 A
30 •100 A
32 •125 A
34 •160 A
36 •200 A
38 •250 A
40 •315 A
42 •400 A
44 •500 A
46 •630 A
48 •800 A
50 •1000 A
52 •1250 A

Product information
3.2 Product family
3KC0 manual transfer switching equipment
Manual, 09/2018, L1V30368969105-01 17
Serial
No.
Description
Value
Explanation
54 •1600 A
③
Connection type 0
2
•Flat terminal
•Box terminal
④Size M •Size 1
N •Size 2
P •Size 3
Q •Size 4
R •Size 5
Article numbers for accessories
Serial
No.
Description
Value
Explanation
⑤Suitable for transfer switching equip-
ment in size
1 •Size 1
2 •Size 2
3 •Size 3
4 •Size 4
5 •Size 5
⑥
Type of accessory
⑦
Accessory version