3CJ2 Switch-Disconnectors
Medium-Voltage Equipment
Selection and Ordering Data
Catalog HG 12.21 · 2008
Answers for energy.
R-HG12-029.tif
3CJ2 Switch-Disconnectors
2
Siemens HG 12.21 · 2008
3CJ2 Switch-Disconnectors
3CJ2
Switch-Disconnectors
Medium-Voltage Equipment
Catalog HG 12.21 · 2008
Contents
Contents
Page
Description
5
General
6
Construction and mode of operation
7
Construction and mode of operation, standards
9
Ambient conditions, dielectric strength
and product range overview
1
10
Invalid: Catalog HG 12 · 1993, Part 2
Equipment Selection
11
Ordering data and configuration example
12
Selection of basic type, switch-disconnector
13
Selection of operating mechanism and built-on
components
14
Additional equipment
16
Accessories and spare parts
17
Technical Data
19
Electrical data, dimensions and weights
20
Circuit diagrams
23
Data of built-on components
24
Annex
25
Inquiry form
26
Configuration instructions
27
Configuration aid
2
3
4
Foldout page
Siemens HG 12.21 · 2008
3
R-HG11-173.tif
3CJ2 Switch-Disconnectors
4
Siemens HG 12.21 · 2008
3CJ2 Switch-Disconnectors
Description
Contents
Contents
Page
Description
5
General
6
1
R-HG11-174.tif
Construction and mode of operation:
Industrial application: Refinery
Construction
7
Arc-extinguishing medium
7
Arc-extinguishing process
7
Switching process
8
Operating mechanism
8
Fuse assembly
8
Make-proof earthing switch
8
Shunt release
9
Auxiliary switch
9
Spherical joint mechanism
9
Standards
9
Ambient conditions
10
Dielectric strength
10
Product range overview
10
Siemens HG 12.21 · 2008
5
3CJ2 Switch-Disconnectors
Description
General
3CJ2 switch-disconnector – The Loadable
R-HG12-031.tif
3CJ2 – The Sudden
R-HG12-030.tif
1
and are therefore used for breaking load currents up to
their rated normal current.
Switch-disconnectors combine the functions of a
switch with the establishment of an isolating distance
(disconnector),
The medium-voltage switch-disconnector 3CJ2 is designed
according to the clear disconnector principle. Proven
hard-gas flat arcing chambers provide a higher switching
capacity than that of its competitors. Simple blade contacts
and a torsion-bar spring-operated mechanism increase its
making capacity and the mechanical endurance.
While connecting consumers, making on an existing shortcircuit cannot be excluded. That is why, today, switchdisconnectors generally feature a short-circuit making
capacity.
6
Siemens HG 12.21 · 2008
In combination with fuses, switch-disconnectors can also be
used to break short-circuit currents. The short-circuit current
is interrupted by the fuses. Subsequently, the fuses trip the
three poles of the switch-disconnector, disconnecting the
faulty feeder from the power system.
3CJ2 Switch-Disconnectors
Description
Construction and mode of operation
Construction
1
R-HG12-032.eps
A welded base frame (1) carries the disconnector
arrangement (2) and the flat arcing chambers (3).
Furthermore it contains the spring-operated mechanism
(high-speed closing and high-speed opening), or the
stored-energy mechanism (storage of high-speed
closing/opening, manual tripping and free tripping).
3
Optionally, the switch-disconnector can also be equipped
with a make-proof earthing switch (4) or a fuse assembly.
Switch-disconnectors are supplied according to category A
(20 breaking operations at rated current). A special version
with category B (100 breaking operations at rated current) is
possible.
The 3CJ2 can be wall-mounted with the isolating contact
side upwards or downwards, as well as on the floor or on
the ceiling – in inverted position. For wall mounting, the
preferred mounting position is with the isolating contact side
upwards.
4
Switch-disconnector with make-proof earthing switch
1 Base frame
3 Flat arcing chamber
2 Disconnector arrangement
4 Make-proof earthing switch
3
5
A
Arc-extinguishing medium
HG12-2117a eps
7
5
B
6
3
6
3CJ2 switch-disconnectors operate with a flat hard-gas arcing
chamber (3).
7
5
3
5
A: Switch in closed position.
8
C
6
3
6
HG12-2119a eps
C: When the contact blades reach the isolating distance, the
auxiliary contact blade opens the connection suddenly. The
breaking arc (8) burns in a small gap, and the thermal effect
releases enough gas to extinguish the arc rapidly and effectively.
5
3
Arc-extinguishing process
B: During the opening movement, the contact blade (5) is
separated first. As the auxiliary contact blade (6) guided in
the arcing chamber is still touching, the current now flows
through the auxiliary contact blade.
6
3
6
HG12-2118a eps
In switch-disconnectors, the arc is not extinguished in a
vacuum interrupter, but they operate according to the principle of a hard-gas switch. This means that the arc splits off
some gas from an insulating material which surrounds the arc
closely, and this gas quenches the arc fast and effectively.
As the material providing the gas cannot regenerate itself, the
number of operating cycles is lower than that of the vacuum
interrupters. Nevertheless, switch-disconnectors according to
the hard-gas principle are the most frequently used ones, as
they have a good cost/performance relationship.
1
2
5
3
5
6
D
D: Switch in open position, arc extinguished.
HG12-2120a eps
6
3
5
Representation of the disconnecting and arc-extinguishing process
3 Flat arcing chamber
7 Current flow (yellow)
5 Contact blade
8 Breaking arc
6 Auxiliary contact blade
Siemens HG 12.21 · 2008
7
3CJ2 Switch-Disconnectors
Description
Construction and mode of operation
Switching process
1
1
The switch-disconnector can be equipped with a springoperated or stored-energy mechanism. Both mechanism
types decouple the actuation of the operating shaft from the
actual switching process. When the operating shaft (1) is
actuated manually or by motor, the torsion bar springs (2)
located in the operating shaft are pre-charged, forming an
energy store. At the end of the rotary movement, a cam
plate releases the latch, and thus the energy store. In this
way, the closing and opening speed is independent of the
operator.
2
R-HG12-033.eps
3
In stored-energy mechanisms (STO), additional springs (3)
are charged during the closing process, and used as energy
stores for the opening operation. Opening can now be done
by actuation of the operating shaft or free tripping (tripping
by operation of a fuse or a shunt release).
Energy store of the switch-disconnector
1 Operating shaft
2 Torsion bar spring (in operating shaft)
3 Additional springs
Operating mechanism
3CJ2 switch-disconnectors can be operated locally by hand
or from remote by means of a motor operating mechanism.
A motor operating mechanism is also available on request
for the make-proof earthing switch.
HG12-2121 eps
Fuse assembly
Fuse assembly
The fuse assembly is mounted on a base frame attached at
the pivot point of the switch-disconnector. On this base
frame, the post insulators and contact pieces are mounted as
well. The tripping mechanism is directly connected to the
switch-disconnector tripping system. The tripping mechanism can only operate the switch if the switch is equipped
with a stored-energy mechanism.
If a 3CJ2 with fuse assembly has to be installed with the isolating contact side downwards (180° turn), this has to be
specified as a special design due to the different force conditions (effect against the force of gravity). Faster breaking
according to IEC 62271-105 with 100 A fuses (12 kV) and
80 A fuses (24 kV) is also possible as a special design.
EO
EP
Make-proof earthing switch
Make-proof earthing switches can be mounted on the
opening side (EO), the pivot point (EP), and the fuse crossmember (EF). If the make-proof earthing switch has to be
mounted on the fuse cross-member, it will be located inside
the base frame for the type 3CJ25, and outside the base
frame for all other switch-disconnector types.
HG12-2122_en eps
EO
EF inside
EF outside
HG12-2123_en eps
Mounting options of the make-proof earthing switch
8
Siemens HG 12.21 · 2008
High-speed closing of the earthing switch operating mechanism takes place via tilt springs. When the shaft is operated,
the dead point is passed after approx. 15°, and the highspeed closing is activated.
Mechanical interlocking between the make-proof earthing
switch and the switch-disconnector is always possible
(with restrictions in case of motor operating mechanisms).
3CJ2 Switch-Disconnectors
Description
Construction and mode of operation, standards
Shunt release
For remote tipping, 3CJ2 switch-disconnectors with
stored-energy mechanism can be equipped with a shunt
release (1). For control via maintained contact, the tripping
current must be interrupted by an auxiliary switch operated
by the switch-disconnector; otherwise, the tripping coil will
be overloaded.
1
R-HG12-034.eps
A shunt release only works on a switch-disconnector with a
stored-energy mechanism.
1
Switch-disconnector with stored-energy mechanism
and built-on release (1)
Auxiliary switch
3CJ2 switch-disconnectors can be delivered with auxiliary
switches with 2 NO + 2 NC or 5 NO + 5 NC; the type 3CJ24
with a maximum of 3 NO + 3 NC. Make-proof earthing
switches are supplied with 2 NO + 2 NC.
R-HG12-035.eps
The auxiliary switch is mounted on the switch-disconnector
between phases L1 and L2. If auxiliary switches are also
required for built-on make-proof earthing switches, they are
located between phases L2 and L3 – in case of pivot-point
arrangement – and between phases L1 and L2 for arrangement on the opening side.
Built-on auxiliary switch
Spherical joint mechanism
Spring-operated switch-disconnectors can also be operated
through a spherical joint mechanism. The rotary movement
is transmitted from the front side of a switchgear panel to
the switch via levers and rods.
1
Spherical joint mechanisms are also available for the makeproof earthing switches.
HG12-2124 eps
2
Standards
The switch-disconnectors conform to the following
standards and recommendations:
3
4
5
6
7
Spherical joint mechanism 3DX2
• VDE 0671-102 (former VDE 0670 Part 2)
1 Operating shaft lever
• VDE 0670-301 (former VDE 0670 Part 3)
2 Switching rod (threaded rod with spherical
joints M12 on both sides)
• IEC 129
3 Lever on the drive shaft
• IEC 60265-1
4 Drive shaft: steel shaft with 25 mm Ø,
or insulating shaft with 30 mm Ø
• IEC 60694 (VDE 0670 Part 1000)
5 Notch (only for disconnector and earthing switch)
• IEC 62271-105 (VDE 0670 Part 303/9.94)
8
6 90° stop CLOSE-OPEN
7 Indication label
– black for switch-disconnector and disconnector
– red for earthing switch and make-proof earthing switch
8 Operating lever for spherical joint mechanism 3DX2
Siemens HG 12.21 · 2008
9
3CJ2 Switch-Disconnectors
Description
Ambient conditions, dielectric strength and product range overview
Ambient conditions
40°C
1
Condensation can occasionally occur under the ambient
conditions shown opposite.
max. 95% per day
max. 70% per month
HG12-2125_en eps
-20°C
The switch-disconnectors are designed for the normal
operating conditions defined in the standards.
Dielectric strength
The dielectric strength of air insulation decreases with
increasing altitude due to low air density. According to
IEC 62271-1, the values of the rated lightning impulse withstand voltage and the rated short-duration power-frequency
withstand voltage specified in the chapter “Technical Data”
apply to a site altitude of 1000 m above sea level. For an
altitude above 1000 m, the insulation level must be corrected according to the opposite diagram.
1.40
1.30
1.20
HG11-2517c_en eps
Altitude correction factor
1.50
1.10
1.00
1000
1500
2000
2500
The characteristic shown applies to both rated withstand
voltages.
To select the devices, the following applies:
3000 3500 m 4000
Site altitude
U W U0 x Ka
U
Rated withstand voltage under reference atmosphere
U0
Rated withstand voltage requested for the place of installation
Ka
Altitude correction factor according to the opposite diagram
Example
For a requested rated lightning impulse withstand voltage
of 75 kV at an altitude of 2500 m, an insulation level of 90 kV
under reference atmosphere is required as a minimum:
90 kV W 75 kV x 1.2
Product range overview
Rated voltage
Type of operating
mechanism
kV
12
17.5
24
36
Spring-operated (SPR)
Stored-energy (STO)
Spring-operated (SPR)
Stored-energy (STO)
Spring-operated (SPR)
Stored-energy (STO)
Spring-operated (SPR)
Stored-energy (STO)
Rated normal current (A)
400
630
1000
n
l
n
n
n
n
n
n
l
n
l
l
l 3CJ2 with fuse assembly
10
Siemens HG 12.21 · 2008
n 3CJ2 without fuse assembly
n
3CJ2 Switch-Disconnectors
Equipment Selection
Contents
Contents
Page
Equipment Selection
Ordering data and configuration example
11
12
Selection of basic type, switch-disconnector:
Voltage level 12 kV
13
Voltage level 17.5 kV
13
Voltage level 24 kV
13
Voltage level 36 kV
14
R-HG12-036.tif
Selection of operating mechanism and
built-on components:
14
Design of motor operating mechanism
14
Design of shunt release
15
Design of make-proof earthing switch
15
Design of auxiliary switch
15
Special version / Additional equipment
16
Accessories and spare parts
17
2
R-HG12-037.tif
Switch-disconnector with earthing switch
Design of operating mechanism
Switch-disconnector with fuse assembly
Siemens HG 12.21 · 2008
11
3CJ2 Switch-Disconnectors
Equipment Selection
Ordering data and configuration example
Order number structure
Built-on components and special versions («)
The switch-disconnectors are described by a 12-digit order
number. The positions 13 to 16, which are provided for the
usual 16-digit order number, are not required. These 12
characters describe the data of the switch.
For some built-on components and special versions, “-Z” is
added to the order number and a descriptive order code
follows. If several built-on components and special versions
are required, the suffix “-Z” is listed only once. If a requested
special version is not in the catalog and can therefore not be
ordered via order code, it has to be identified with Y 9 9
after consultation. The agreement hereto is made directly
between your responsible sales partner and the order
processing department in the Switchgear Factory Berlin.
2
a: alphabetical
1st position
1
2
3
4
5
6
7
–
8
9
10 11 12
Order No.:
3
C
J
2
n
n
n
–
n
a
a
n
n
Order codes
–
«
Primary data
Superior group
Switching devices
2nd position
Main group
Switch and switch-disconnector
3rd position
Subgroup
Indoor switch-disconnector, 3-pole
4th to 7th position
Basic equipment
Design and ratings of the
switch-disconnector
8th to 12th position
n: numerical
Position:
Secondary data
Operating mechanism and components
Built-on components, special versions («)
Initiated with “-Z”
Group of 3 after the Order No.
Format: a n n
Configuration example
In order to simplify the selection of the correct order number
for the requested switch type, you will find a configuration
example on each page of the chapter “Equipment Selection”.
For the selection of the operating mechanism and built-on
component types, always the last example of the primary
part was taken over and continued, so that at the end of the
equipment selection (page 16) a completely configured
switch results as an example.
On the foldout page we offer a configuring aid.
Here you can fill in the order number you have
determined for your switch.
Example for Order No.:
Order codes:
12
Siemens HG 12.21 · 2008
3
C
J
2
5
4
2
– n n n n n
n n n
3CJ2 Switch-Disconnectors
Equipment Selection
Selection of basic type, switch-disconnector
12 kV
kV
kV
kV
A
mm
mm
12
75/85
28/32
400
165
210
165
566
866
566
210
866
210
866
630
1000
C
C
C
C
C
C
C
J
J
J
J
J
J
J
2
2
2
2
2
2
2
4
3
4
4
3
3
3
4
4
6
6
6
6
7
2
2
1
8
1
8
1
3
3
3
3
C
C
C
C
J
J
J
J
2
2
2
2
7
8
7
8
4
4
6
6
2
2
1
1
3
3
3
3
3
3
3
C
C
C
C
C
C
C
J
J
J
J
J
J
J
2
2
2
2
2
2
2
5
6
5
5
6
6
5
4
4
6
6
6
6
7
2
2
1
8
1
8
1
3
C
J
2
5
4
2
5
4
2
Fu 292
Fu 292
w/oFu
w/oFu
w/oFu
w/oFu
w/oFu
6
7
–
8
9
10 11 12
Order codes
n n n
See page 16
3
3
3
3
3
3
3
STO
STO
SPR
STO
SPR
STO
SPR
5
See page 15
SL
2 n n n – n n n n n – «
See page 15
Shaft length 1)
PCD
4
J
See page 14
Pole-center distance
Ir
3
See page 14
Rated normal
current
Ud
2
C
See page 14
Rated short-dur. powerfreq. withstand voltage
earth/isolating distance
Up
1
3
Built-on component:
with fuse (Fu) 2)
without fuse (w/oFu)
Rated lightning impulse
withstand voltage
earth/isolating distance
Ur
Position:
Order No.:
Type of oper. mechanism
Spring-oper. mech. (SPR)
Stored-ener. mech. (STO)
Rated voltage
50/60 Hz
2
1) With motor operating mechanism, the shaft length sometimes deviates
from the specified values (for actual values, refer to chapter “Technical Data”)
2) Specification of fuse dimension in mm
17.5 kV
50/60 Hz
Ur
Up
Ud
Ir
PCD
SL
kV
kV
kV
A
mm
95/110
38/45
400
210
630
210
Ir
17.5
mm
Type of
operating
mechanism
Built-on
component
766
866
766
866
STO
STO
SPR
SPR
Fu 292
Fu 292
w/oFu
w/oFu
PCD
SL
Type of
operating
mechanism
Built-on
component
STO
STO
SPR
STO
SPR
STO
SPR
Fu 442
Fu 442
w/oFu
w/oFu
w/oFu
w/oFu
w/oFu
24 kV
50/60 Hz
Ur
Up
Ud
kV
kV
kV
A
mm
mm
24
125/145
50/60
400
250
275
250
866
966
866
275
966
250
866
630
1000
Configuration example
3CJ2 switch-disconnector
Rated voltage Ur = 24 kV
Rated lightning impulse withstand voltage Up = 125 kV
Rated short-duration power-frequency withstand voltage Ud = 50 kV
Rated normal current Ir = 400 A
Pole-center distance PCD = 250 mm, shaft length SL = 866 mm
Type of operating mechanism: stored-energy mechanism, components: with fuse assembly
Example for Order No.:
Order codes:
3
C
J
2
– n n n n n
Siemens HG 12.21 · 2008
13
3CJ2 Switch-Disconnectors
Selection of basic type, switch-disconnector / Selection of operating mechanism and built-on components
Equipment Selection
Shaft length 1)
PCD
SL
kV
kV
kV
A
mm
mm
36
170/195
70/80
630
370
1500
400
1500
370
400
1500
1500
1000
2
4
J
2 n n n – n n n n n – «
3
3
3
3
3
3
C
C
C
C
C
C
J
J
J
J
J
J
2
2
2
2
2
2
SPR
STO
SPR
STO
SPR
SPR
w/oFu
Fu 537
w/oFu
Fu 537
w/oFu
w/oFu
5
6
7
–
8
9
10 11 12
1
1
2
2
1
2
6
6
6
6
7
7
1
2
1
2
1
1
1) With motor operating mechanism, the shaft length sometimes deviates
from the specified values (for actual values, refer to chapter “Technical Data”)
2) Specification of fuse dimension in mm
8th position
Design of operating mechanism
Equipment with operating shaft lever:
with/without
Operating mechanism:
left/right
Without (for motor operating mechanism)
Without (for motor operating mechanism)
With (for manual operating mechanism) 3)
With (for manual operating mechanism) 3)
Right
Left
Right
Left
1
2
3
4
3) At the 9th position: A
9th position
Design of motor operating mechanism
DC voltage
AC voltage
Without motor operating mechanism 4)
24 V DC
60 V DC
110 V DC
125 V DC
220 V DC
110 V AC
220 V AC
A
B
C
D
H
E
F
G
50/60 Hz
50/60 Hz
4) At the 8th position: 3 or 4
Configuration example
3CJ2 switch-disconnector
3 C J 2
Rated voltage Ur = 36 kV
Rated lightning impulse withstand voltage Up = 170 kV
Rated short-duration power-frequency withstand voltage Ud = 70 kV
Rated normal current Ir = 630 A
Pole-center distance PCD = 400 mm, shaft length SL = 1500 mm
Type of operating mechanism: stored-energy mechanism; built-on component: with fuse assembly
Equipment for manual operating mechanism: with operating shaft lever, operating mechanism on the right
Without motor operating mechanism
Example for Order No.:
Order codes:
14
Siemens HG 12.21 · 2008
3
C
J
2
2
6
2
–
3
A
2
6
2
–
3 A n n n
Order codes
See page 16
Pole-center distance
Ir
3
See page 15
Rated normal
current
Ud
2
C
See page 15
Rated short-dur. powerfreq. withstand voltage
earth/isolating distance
Up
1
3
Built-on component:
with fuse (Fu) 2)
without fuse (w/oFu)
Rated lightning impulse
withstand voltage
earth/isolating distance
Ur
Position:
Order No.:
Type of oper. mechanism
Spring-oper. mech. (SPR)
Stored-ener. mech. (STO)
Rated voltage
50/60 Hz
See page 15
36 kV
n n n
3CJ2 Switch-Disconnectors
Equipment Selection
Selection of operating mechanism and built-on components
DC voltage
Position:
1
2
3
4
Order No.:
3
C
J
2 n n n
5
6
7
–
8
9
10 11 12
AC voltage
Without shunt release 1) 2)
24 V DC
60 V DC
110 V DC
125 V DC
220 V DC
110 V AC
220 V AC
Order codes
– n n n n n – «
n n n
See page 16
10th position
Design of shunt release
A
B
C
D
H
E
F
G
50/60 Hz
50/60 Hz
1) Basically for switch-disconnectors with spring-operated mechanism
2) Not for switch-disconnectors with stored-energy mechanism and without fuse assembly
2
11th position
Design of make-proof earthing switch
Built-on make-proof earthing switch
Mechanical
interlocking
Without make-proof earthing switch
With make-proof earthing switch on pivot-point side 3)
With make-proof earthing switch on pivot-point side 3)
With make-proof earthing switch on opening side
With make-proof earthing switch on opening side
With make-proof earthing switch on fuse cross-member 4)
With make-proof earthing switch on fuse cross-member 4)
0
3
4
5
6
7
8
Without
With
Without
With
Without
With
3) Not for switch-disconnectors with fuse assembly
4) Only for switch-disconnectors with fuse assembly
12th position
Design of auxiliary switch
Built on the switch-disconnector
2 NO + 2 NC
3 NO + 3 NC
Built on the make-proof
earthing switch
5 NO + 5 NC 5)
2 NO + 2 NC
Without auxiliary switch
n
0
1
2
3
4
5
6
n
n
n
n
n
n
n
n
5) Not available for switch-disconnector with PCD 165 mm
Configuration example
3CJ2 switch-disconnector
(Ur = 36 kV, Ir = 630 A, PCD = 400 mm, SL = 1500 mm
with stored-energy mechanism, with fuse assembly)
With shunt release 24 V DC
With make-proof earthing switch on the opening side and with mechanical interlocking
With auxiliary switch 3 NO + 3 NC at the switch-disconnector and 2 NO + 2 NC at the
make-proof earthing switch
Example for Order No.:
Order codes:
3
C
J
2
2
6
2
–
3 A
B
6
6
3
C
J
2
2
6
2
–
3 A B
6
6
Siemens HG 12.21 · 2008
15
3CJ2 Switch-Disconnectors
Equipment Selection
Special version / Additional equipment
Special version / Additional equipment
Position:
1
2
3
4
Order No.:
3
C
J
2 n n n – n n n n n – «
5
6
7
–
8
9
10 11 12
Order codes
n n n
Options
Signaling switch 1 NO + 1 NC for fuse tripping
Capacitive tap
Design with upgrading according to IEC 62271-105
Design with category B upgrading (not for 36 kV switches)
Switch-disconnector fuse combination turned by 180°
Design with insulating shaft
Special length of the fuse dimension (only after consultation with the order
processing dept. in Berlin). Length to be specified in clear text
Shortening the operating shaft (only after consultation with the order
processing dept. in Berlin). Length to be specified in clear text
Shaft extension by means of joint or shaft piece. Length to be specified in clear text
–
–
–
–
–
–
Z
Z
Z
Z
Z
Z
B
B
C
C
C
C
0
0
0
0
0
0
1
2
1
2
3
4
–
Z
Y
0
1
–
–
Z
Z
Y
Y
0
0
2
3
–
Z
B
0
1
–
Z
2
Configuration example
3CJ2 switch-disconnector
3 C J 2
Rated voltage Ur = 36 kV
Rated lightning impulse withstand voltage Up = 170 kV
Rated short-duration power-frequency withstand voltage Ud = 70 kV
Rated normal current Ir = 630 A
Pole-center distance PCD = 400 mm
Shaft length SL = 1500 mm
Type of operating mechanism: stored-energy mechanism
Built-on component: with fuse assembly
Equipment for manual operating mechanism: with operating shaft lever, operating mechanism on the right
Without motor operating mechanism
With shunt release 24 V DC
With make-proof earthing switch on the opening side and with mechanical interlocking
With auxiliary switch 3 NO + 3 NC at the switch-disconnector and 2 NO + 2 NC at the
make-proof earthing switch
With signaling switch 1 NO + 1 NC for fuse tripping
Example for Order No.:
Order codes:
16
Siemens HG 12.21 · 2008
3
B
C
0
J
1
2
2
6
2
–
3
A
B
6
6
2
6
2
–
3 A B
6
6
3CJ2 Switch-Disconnectors
Equipment Selection
Accessories and spare parts
Remark for orders
The order numbers are applicable to switch-disconnectors of
current manufacture. When built-on components or spare
parts are being ordered for an existing switch-disconnector,
always quote the type designation, serial number and the
year of manufacture of the switch-disconnector to be sure to
get the correct delivery.
Note: Arc-suppression systems and other spare parts
must only be replaced by instructed personnel.
Designation
Remarks
Order No.
Operating shaft lever
For switch-disconnector
For make-proof earthing switch
To actuate the operating shaft lever
up to 36 kV
For motor operating mechanism
3CX1025
3CX1026
PFS: 364035-005
PFS: 364035-035
3CX6015
3CY2056
3CY2057
3CY2058
3CY2068
3CY2062
3CY2061
3CY2070
3CY2064
3CY2063
3CY2066
3CY2065
3CY2072
3CY2067
3CY2073
Switching rod
Auxiliary mechanism
Arc-suppression system
Conducting path
For 12 kV
For 17.5 kV
For 24 kV
For 36 kV
Length 1025 mm
Length 2000 mm
Length 280 mm
12 kV
17.5 kV
24 kV
36 kV
400 A
630 A
1000 A
400 A
630 A
400 A
630 A
1000 A
630 A
1000 A
Siemens HG 12.21 · 2008
2
17
3CJ2 Switch-Disconnectors
Equipment Selection
Accessories and spare parts
Designation
Remarks
Order No.
Spherical joint mechanism for 3CJ2 …-1/2 switch-disconnectors with spring-operated mechanism (data of widths X and L in clear text)
For switch-disconnector
For recommended panel width
3CJ24...
600 – 750 mm
3CJ23...
800 – 1000 mm
3CJ25...
800 – 900 mm
3CJ26...
900 – 1100 mm
3CJ27...
800 – 900 mm
3CJ28...
900 – 1000 mm
3CJ22
Spherical joint mechanism for make-proof earthing switch (data of widths X and L in clear text)
For switch-disconnector
For recommended panel width
3CJ24...
600 – 750 mm
3CJ23...
800 – 1000 mm
3CJ25...
800 – 900 mm
3CJ26...
900 – 1100 mm
3CJ27...
800 – 900 mm
3CJ28...
900 – 1000 mm
3CJ22
Accessories for spherical joint
Operating lever for switch-disconnector
mechanism
Operating lever for make-proof earthing switch
Interlocking between switch-disconnector and make-proof earthing switch
Additive blocking solenoid with data of operating voltage
Bearing for shaft extension
Setting lever for switchgear
Dowel pin for shaft extension
2
3DX2011 X =...
3DX2012 X =...
3DX2011 X =...
3DX2012 X =...
3DX2011 X =...
3DX2012 X =...
3DX2012 X =...
L =...
L =...
L =...
L =...
L =...
L =...
L =...
3DX2013 X =...
3DX2014 X =...
3DX2013 X =...
3DX2014 X =...
3DX2013 X =...
3DX2014 X =...
3DX2014 X =...
3DX2081
3DX2082
3DX2072
3DX2071-Z
3DX2901
3DX2902
3DX2903
L =...
L =...
L =...
L =...
L =...
L =...
L =...
Data of spherical joint mechanism
3DX2 spherical joint mechanism
1 Operating shaft lever
2 Switching rod (threaded rod with spherical
joints M12 on both sides)
3 Lever on the drive shaft
1
4 Drive shaft: steel shaft with 25 mm Ø,
or insulating shaft with 30 mm Ø
5 Notch (only for disconnector and earthing switch)
2
HG12-2135 eps
X
6 90° stop CLOSE-OPEN
70
L
50
3
18
Siemens HG 12.21 · 2008
4
5
6
7
8
7 Indication label
– black for switch-disconnector and disconnector
– red for earthing switch and make-proof earthing switch
8 Operating lever for spherical joint mechanism 3DX2
3CJ2 Switch-Disconnectors
Technical Data
Contents
Contents
Page
Technical Data
19
Electrical data, dimensions and weights:
20
Voltage level 17.5 kV
20
Voltage level 24 kV
20
Voltage level 36 kV
21
Dimension drawings
21
Circuit diagrams
23
Data of auxiliary switch
24
Data of motor operating mechanism
24
R-HG12-038.tif
Voltage level 12 kV
Arcing chambers, contact blades and auxiliary contact blades
R-HG12-039.tif
3
Fuse holders with separating shells
Siemens HG 12.21 · 2008
19
3CJ2 Switch-Disconnectors
Technical Data
Rated cable-charging breaking current
Rated earth-fault breaking current
Rated cable-charging breaking current
under earth-fault conditions
Number of mechanical operating cycles
I2a
I4a
I6a
I6b
n
kV
kV
kV
kV
A
kA
kA
kA
A
A
A
A
Order No.
3CJ2 342...
75
85
28
32
400 25 1) 63
63 1) 400
3CJ2 361...
75
85
28
32
630 25
63
3CJ2 368...
75
85
28
32
630 25
3CJ2 371...
75
85
28
32
1000 32
3CJ2 442...
75
85
28
3CJ2 461...
75
85
3CJ2 468...
75
17.5 kV
50/60 Hz
Nm
Nm
Nm
Catalog dim. drawing no. (see pages 21 to 23)
Rated closed-loop breaking current
Ima
Weight of switch-discon./built-on earth. switch
Rated short-circuit making current
Ip
Torque of make-proof earthing switch
Rated peak withstand current
Ik
Torque of stored-energy mechanism
Rated short-time withstand current (1 s)
Ir
Torque of spring-operated mechanism
Rated normal current
Ud
Dimension of fuse assembly
Rated short-duration power-frequency
withstand voltage across the isolating distance
Ud
Shaft length (with built-on motor)
Rated short-duration power-frequency
withstand voltage to earth
Up
50/60 Hz
Shaft length (standard)
Rated lightning impulse
withstand voltage across the isolating distance
Up
12 kV
Pole-center distance
Rated lightning impulse
withstand voltage to earth
Electrical data, dimensions and weights
e
mm mm mm mm
kg
38/
10.5
23/
9.5
23/
9.5
23/
9.5
35/
8
20/
8
20/
8
50
150
86
1500 210 566 730 292
–
60
60
63
630 50
150
86
1500 210 566 730
–
44
–
60
63
63
630 50
150
86
1500 210 566 730
–
–
60
60
80
63 1000 50
150
86
1500 210 866 866
–
44
–
60
32
400 25 1) 63
63 1) 400 50
150
86
1500 165 866 866 292
–
60
60
28
32
630 25
63
63
630 50
150
86
1500 165 866 866
–
44
–
60
85
28
32
630 25
63
63
630 50
150
86
1500 165 866 866
–
–
60
60
Up
Up
Ud
Ud
Ir
Ik
Ip
Ima
I2a
I4a
I6a
I6b
kV
kV
kV
kV
A
kA
kA
kA
A
A
A
A
Nm
Nm
Nm
kg
48/
10
28/
10
48/
10
28/
10
1
2
2
2
1
2
2
3
n
e
mm mm mm mm
3CJ2 742...
95
110
38
42
400
25 1) 63
63 1) 400
50
150
86
1500 210 766 866 367
–
62
65
3CJ2 761...
95
110
38
42
630
25
63
630
50
150
86
1500 210 766 866
54
–
65
3CJ2 842...
95
110
38
42
400
25 1) 63
63 1) 400
50
150
86
1500 210 866 866 367
–
62
65
3CJ2 861...
95
110
38
42
630
25
63
63
630
50
150
86
1500 210 866 866
54
–
65
24 kV
Up
Up
Ud
Ud
Ir
Ik
Ip
Ima
I2a
I4a
I6a
I6b
50/60 Hz
kV
kV
kV
kV
A
kA
kA
kA
A
A
A
A
Nm
Nm
Nm
3CJ2 542...
125
145
50
60
400 25 1) 63
63 1) 400 50
285
86
1500 250 866
966 442
–
64
3CJ2 561...
125
145
50
60
630 25
63
63
630 50
285
86
1500 250 866
966
–
64
–
3CJ2 568...
125
145
50
60
630 25
63
63
630 50
285
86
1500 250 866
966
–
–
64
3CJ2 571...
125
145
50
60
1000 32
80
63 1000 50
285
86
1500 250 866
966
–
64
–
3CJ2 642...
125
145
50
60
400 25 1) 63
63 1) 400 50
285
86
1500 275 966 1066 442
–
64
3CJ2 661...
125
145
50
60
630 25
63
285
86
1500 275 966 1066
64
–
70 53/
10.5
70 29/
10.5
70 29/
10.5
70 29/
10.5
57/
70
11.5
70 32/
11.5
1) Ima and Ik are defined by the fuse used
20
Siemens HG 12.21 · 2008
63
63
630 50
n
–
–
3
4
3
4
e
mm mm mm mm
–
kg
5
6
6
6
5
6
Rated short-circuit making current
Rated closed-loop breaking current
Rated cable-charging breaking current
Rated earth-fault breaking current
Rated cable-charging breaking current
under earth-fault conditions
Number of mechanical operating cycles
Ip
Ima
I2a
I4a
I6a
I6b
n
kV
kV
kV
kV
A
kA
kA
kA
A
A
A
A
195
70
80
630 20 1) 50
3CJ2 171...
170
195
70
80
1000 20
3CJ2 261...
170
195
70
80
630 20
3CJ2 262...
170
195
70
80
630 20 1) 50
3CJ2 271...
170
195
70
80
C
61
90
°
°
90
100
467
Dimension drawing 1
C
38
34
D
B
A
25
70
40
1000 370 1500 1500
25 1) 630
25
70
40
1000 370 1500 1500 537
–
50
25
630
25
70
40
1000 370 1500 1500
–
90
–
120
50
25
630
25
70
40
1000 400 1500 1500
–
90
–
120
25 1) 630
25
70
40
1000 400 1500 1500 537
–
25
25
70
40
1000 400 1500 1500
90
50
630
419
261
15
342
Rated peak withstand current
Ik
31
Rated short-time withstand current (1 s)
Ir
20
Rated normal current
Ud
Æ 30
Rated short-duration power-frequency
withstand voltage across the isolating distance
Ud
100
467
Nm
Nm
Nm
–
90
–
61
C
90°
–
–
C
38
34
D
B
A
Dimension
drawing no.
Type
A
B
C
D
1/2
1/2
3CJ2 3...
3CJ2 4...
866
566
625
485
210
165
600
460
150 120
150 120
120
kg
120
59/
13
98/
13
59/
13
59/
13
98/
13
59/
13
Siemens HG 12.21 · 2008
Catalog dim. drawing no. (see pages 21 to 23)
Weight of switch-discon./built-on earth. switch
Torque of make-proof earthing switch
Dimension of fuse assembly
Shaft length (with built-on motor)
Shaft length (standard)
Torque of stored-energy mechanism
e
Torque of spring-operated mechanism
mm mm mm mm
HG12-2127 eps
Rated short-duration power-frequency
withstand voltage to earth
Up
Pole-center distance
Rated lightning impulse
withstand voltage across the isolating distance
Up
114
170
630
25
25
3CJ2 162...
50
330
280
630 20
252
80
200
70
15
195
77 124,5
Æ 14
31
170
698
20
419
261
Æ 30
25
3CJ2 161...
1000 20
HG12-2126 eps
280
Rated lightning impulse
withstand voltage to earth
Order No.
50/60 Hz
114
638
252
77 124,5
15
36 kV
315
513
80°
292
3CJ2 Switch-Disconnectors
Electrical data, dimensions and weights / Dimension drawings
Technical Data
7
8
7
7
8
7
1) Ima and Ik are defined by the fuse used
Korr. Maßzeichnungen konnten noch nicht eingebaut werden,
da Hr. Schleicher z.Zt. Urlaub hat!
3
Dimension drawings for 12 kV
15
Æ 14
°
90
Dimension drawing 2
21
3CJ2 Switch-Disconnectors
Technical Data
Dimension drawings
Korr. Maßzeichnungen konnten noch nicht eingebaut werden,
da Hr. Schleicher z.Zt. Urlaub hat!
Dimension drawings for 17.5 kV to 36 kV
210
490
306
210
38
34
61
°
90
15
210
210
38
34
61
°
15
90
Æ 14
315
47
20
Æ 30
200
98
360
280
100
730
Æ 30
284
77 155
15
20
280
98
673
513
40
47
40
284
77 155
15
292
100
Æ 14
90
°
Dimension drawing 4
HG12-2128 eps
A
B
C
D
3/4
3/4
5/6
5/6
3CJ2 7...
3CJ2 8...
3CJ2 5...
3CJ2 6...
766
866
866
966
–
–
635
775
–
–
250
275
–
–
630
730
C
15
Æ 14
46
20
356
15
109 169,5
40
35
948
Æ 30
115
100
207
490
706
76
Æ 14
90
°
90
Dimension drawing 6
370/4001)
77
370/4001)
67,5
20
Æ 30
155,5
555
450
273
195
15
Æ 14
412
42
52,5
90
°
50
30
105
D
B
A
HG12-2131 eps
672
585
732
HG12-2130 eps
Dimension drawing 5
°
D
B
A
672
215
C
38
34
°
90
350
900
474
80°
442
C
46
35
336
109 169,5
40
100
561
443
76
°
90
20
38
34
Æ 30
C
356
Type
115
561
Dimension
drawing no.
420
350
Dimension drawing 3
327
°
90
600
625
A
540
HG12-2129 eps
600
625
A
540
3
905
Siemens HG 12.21 · 2008
1000
1027
1500
HG12-2132 eps
°
90
474
22
374
490
306
Dimension drawing 7
1) 370 mm for switch 3CJ2 1...
400 mm for switch 3CJ2 2...
3CJ2 Switch-Disconnectors
Technical Data
Dimension drawings / Circuit diagrams
Korr. Maßzeichnungen konnten noch nicht eingebaut werden,
da Hr. Schleicher z.Zt. Urlaub hat!
Dimension drawing for 36 kV
732
80
370/4001)
370/4001)
90
°
50
30
67,5
52,5
Æ 30
1185
1155
537
635
90
°
616
155,5
195
450
105
20
412
215
42
15
Æ 14
905
HG12-2133 eps
1000
1027
1500
474
Dimension drawing 8
1) 370 mm for switch 3CJ2 1...
400 mm for switch 3CJ2 2...
Circuit diagrams
Auxiliary switch (for data refer to next page)
Control voltage
K1A
6
S1A
”OPEN”
K1E
S1E
”CLOSED”
K1A
S22
S1
Motor voltage
F3
1
3
5
7
9
2
4
6
8
10
7
9
11
13
8
10
12
14
HG12-2138 eps
S1
5
HG12-2137 eps
F2
9
11
13
15
K1E
33
X1
S4
3
2 NO + 2 NC
37
S3
36
M
K1A
K1E
K1A
1
3
5
2
4
6
K1E
31
K1A
32
F3
F2
S1
34
38
HG12-2136_en eps
33
S2
M1
X1
3 NO + 3 NC
K1E
S1
2
4
Shunt release
32
HG12-2140a eps
1
31
33
S4
34
M
35
S2
36
37
S3
M1
1
38
3
5
7
17
19
21
P
2
4
6
8
10
12
14
16
18
X1
Motor operating mechanism
20
22
HG12-2139 eps
X2
F1
HG12-2141 eps
S1
5 NO + 5 NC
Legend
F1
F2,
F3
K1A
K1E
M1
Shunt release “Open”
Electro-thermal overcurrent release
Auxiliary contactor “Feedback”
Auxiliary contactor “Closed”
Motor operating mechanism
S1
S2,
S3
S4
Auxiliary switch at the switch
Position switches
Interrupter contact for
manual emergency operation
S1E
S1A
S12
“CLOSE” pushbutton
“OPEN” pushbutton
Auxiliary switch for
tripping signal
S22
X1
X2
Interrupter contact
(only for make-proof
earthing switch)
Terminal strip on
the switch
Terminal strip on
the motor
The circuit diagrams shown here are examples from the manifold possibilities of switch wiring
Siemens HG 12.21 · 2008
23
3CJ2 Switch-Disconnectors
Technical Data
Data of auxiliary switch / Data of motor operating mechanism
Korr. Maßzeichnungen konnten noch nicht eingebaut werden,
da Hr. Schleicher z.Zt. Urlaub hat!
Data of auxiliary switch
Rated operating
voltage
Switching
capacity
Short-circuit
capability
Time coefficient
T = L/R
V
A
kA
ms
24 DC
60 DC
110 DC
125 DC
220 DC
110 AC
220 AC
8
3
2
1.7
1
10
10
1
1
1
1
1
1
1
≤ 30
≤ 30
≤ 30
≤ 30
≤ 30
–
–
Data of motor operating mechanism
HG12-2134 eps
580
525
805
24 kV = 20
17,5 kV + 12 kV = 52
Rated operating
voltage
V
24 DC
60 DC
110 DC
125 DC
220 DC
110 AC
220 AC
24
Siemens HG 12.21 · 2008
20
24 kV = 176
17,5 kV + 12 kV = 141
Maximum current
consumption
Maximum power
consumption
A
W/VA
32
13
7
5
3.5
7
3.5
780
780
780
780
780
780
780
3CJ2 Switch-Disconnectors
Annex
Contents
Contents
Page
Annex
25
Inquiry form
26
Configuration instructions
27
Foldout page
R-HG11-181.tif
Configuration aid
Brandenburg Gate, Berlin, Germany
R-HG11-180.eps
4
Switchgear Factory in Berlin, Germany
Siemens HG 12.21 · 2008
25
3CJ2 Switch-Disconnectors
Annex
Inquiry form
Please copy, fill in and return to
your Siemens partner.
Inquiry concerning
o 3CJ2 switch-disconnector
Please
o Submit an offer
o Call us
o Visit us
Your address
Technical data
Other values
o 12 kV
o 24 kV
o 17.5 kV
o 36 kV
o _ _ _ kV
Rated lightning impulse
withstand voltage
o 75 kV
o 125 kV
o 95 kV
o 170 kV
o _ _ _ kV
Rated short-duration powerfrequency withstand voltage
o 28 kV
o 50 kV
o 38 kV
o 70 kV
o _ _ _ kV
Rated normal current
o 400 A
o 630 A
Type of operating mechanism
o Spring-operated mechanism
o Stored-energy mechanism
Fuse assembly
o Without
o With
Pole-center distance
o 165 mm
o 275 mm
o 210 mm
o 370 mm
o 250 mm
o 400 mm
o _ _ _ mm
o 566 mm
o 866 mm
o 766 mm
o 966 mm
o 1500 mm
o _ _ _ mm
Rated voltage
Shaft length
o 1000 A
o ___A
Company
Secondary equipment
Dept.
For possible combinations see pages 14 and 15
Name
Street
Postal code/city
Phone
Actuation of operating shaft
o Manual operation
o Motor operation
Motor operating mechanism
o _ _ _ V DC
o _ _ _ V AC, _ _ _ Hz
Shunt release
o _ _ _ V DC
o _ _ _ V AC, _ _ _ Hz
Auxiliary switch
o 2 NO + 2 NC
Built-on make-proof earthing switch
o On opening side
o On pivot point
o On fuse cross-member
Fax
o 3 NO + 3 NC
E-mail
Application and other requirements
4
Siemens AG
Dept.
Name
Street
Postal code/city
Fax
o Please check off
26
Siemens HG 12.21 · 2008
_ _ _ Please fill in
o 5 NO + 5 NC
For configuration of your
3CJ2 switch-disconnector
2 n n n – n n n n n –
5
3
C
J
2
Rated voltage (Ur)
Rated lightning impulse withstand voltage (Up)
Rated short-duration power-frequency withstand voltage (Ud)
Rated normal current (Ir)
Pole-center distance (PCD)
Shaft length (SL) of the switch shaft
Type of operating mechanism
Version with fuse
Possible options:
Ur:
12 kV to 36 kV
Up: 75 kV to 170 kV
Ud: 28 kV to 70 kV
Ir:
400 A to 1000 A
PCD: 165 to 400 mm
SL: 766 to 1500 mm
Spring-operated or stored-energy mechanism
With or without fuse assembly
3
These ratings define the positions 5 to 7 of the order number.
3
2nd step: Definition of the secondary equipment (see pages 14 and 15)
Please specify the following equipment features:
Type of operating mechanism
(position 8)
Operating voltage of the motor operating mechanism
(position 9)
Use of releases
(position 10)
Use of make-proof earthing switches
(position 11)
Use of auxiliary switches
(position 12)
7
–
C
C
J
J
8
See page 14
1st step: Definition of the primary part (see pages 13 and 14)
Please specify the following ratings:
6
9
10 11 12
–
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
2
–
2
–
Possible options:
Manual operating mechanism with operating shaft lever
Motor operating mechanism
Operating voltages from 24 V DC to 220 V AC
3
C
J
2
–
Operating voltages from 24 V DC to 220 V AC
Built on the opening side, the pivot point or the fuse cross-member
3
C
J
2
–
2 NO + 2 NC, 3 NO + 3 NC, 5 NO + 5 NC
These equipment features define the positions 8 to 12 of the order number.
3
C
J
2
3rd step: Do you have any further requirements concerning the equipment? (Please refer to page 16)
Should you still need more options than the possible special equipment like upgrading to category B,
signaling switch for fuse tripping, special lengths of fuse dimensions, etc., please contact
your responsible sales partner.
3
3
3
Siemens HG 12.21 · 2008
27
C
C
C
J
J
J
–
2
–
2
–
2
–
Z
See page 16
4
J
See page 15
3
See page 15
2
C
See page 13 and 14
Instruction for configuration of the 3CJ2 switch-disconnector
1
3
See page 15
Please follow the steps for configuration and enter the order number in the configuration aid.
See page 14
You prefer to configure your switch-disconnector on your own?
Published by and copyright © 2008:
Siemens AG
Energy Sector
Freyeslebenstrasse 1
91058 Erlangen, Germany
Siemens AG
Energy Sector
Power Distribution Division
Medium Voltage
Nonnendammallee 104
13623 Berlin, Germany
For more information, please contact our
Customer Support Center.
Phone: +49 180 524 70 00
Fax:
+49 180 524 24 71
(Charges depending on provider)
E-mail: support.energy@siemens.com
Order No. E50001-K1512-A211-A1-7600
Printed in Germany
Dispo 31601
KG 08.08 1.5 30 En
6101/14472 103370
Printed on elementary chlorine-free bleached paper.
All rights reserved.
If not stated otherwise on the individual pages of this
catalog, we reserve the right to include modifications,
especially regarding the stated values, dimensions and weights.
Drawings are not binding.
All product designations used are trademarks or product
names of Siemens AG or other suppliers.
If not stated otherwise, all dimensions in this
catalog are given in mm.
Subject to change without prior notice.
The information in this document contains general
descriptions of the technical options available, which
may not apply in all cases. The required technical
options should therefore be specified in the contract.
Responsible for
Technical contents:
Siemens AG, E D MV C
Berlin
General editing:
Siemens AG, E CC MCC R
Erlangen
www.siemens.com/energy