OJON Indoor type Disconnectors
Catalogue
1
OJON 4 GB
OJON
Indoor type Disconnectors
1...24 kV
Contents
General ..................................................................................................3
Technical data and ordering information
–– Standards and Operating Conditions .............................................4
–– Installation .....................................................................................4
–– Ordering Information ......................................................................4
–– Rated Voltages and Voltage Withstand Levels ..............................4
–– Technical Data ..............................................................................5
Accessories
–– Selection table ..............................................................................6
–– Earthing knives ..............................................................................7
–– Disconnector Control .....................................................................7
–– Motor Operation Mechanism UEMC 40_ .......................................7
–– Operating Arm ...............................................................................7
–– Manual Operating mechanism, alternative A, OJO-ZA 1 ................7
–– Manual Operating mechanism, alternative B, UEKO 2C3 ..............8
–– Support bearing .............................................................................9
–– Accessories to be ordered separately ...........................................9
–– Auxiliary switches .........................................................................10
–– Interlocking ....................................................................................12
–– Locking device ..............................................................................12
–– Locking coil ...................................................................................12
–– Extention shaft and support bearing ..............................................13
–– Fuse-bases ...................................................................................13
Dimension Drawings
–– OJON 1-1/1000 ja OJON 1-1 A 2500 .............................................14
–– OJON 1-1 A 2500/E3 ja OJON 1-1 A 4000/E2 .............................15
–– OJON 1-10/630 E1 ja OJON 1-24/630/E ......................................16
–– OJON 3-1 A 1000 ja OJON 3-1/1600 ...........................................17
–– OJON 3-1 A 2500 ja OJON 3-1 A 4000 ........................................18
–– OJON 3-10/630 ja OJON 3-10/1000 .............................................19
–– OJON 3-10/1600 ja OJON 3-12 A 2500 .......................................20
–– OJON OJON 3-12 A 4000 ja OJON 3-24 A 630 ...........................21
–– OJON 3-20/1000 ja OJON 3-20/1600 ...........................................22
–– OJON 3-24 A 2500 ja OJON 3-24 A 4000 ....................................23
–– Terminals ......................................................................................24
–– Disconnector earthing knives .........................................................25
–– Disconnector control .....................................................................26
–– Auxiliary switches .........................................................................27
–– Installation and interlocking ...........................................................28
–– Extension bushing and support bearing .........................................32
–– Fuse-bases ...................................................................................33
–– Manual operating device ................................................................35
2
OJON 4 GB
OJON
Indoor type Disconnectors
97-1038
1...24 kV
General
Compact dimensions, direct current
paths, double-knife construction
and cast resin insulators are common
to all OJON -type disconnectors.
The high short circuit strength of
these disconnectors is a result of
these features. Contact pressure
is achieved by spiral springs which
compress the knives.
Silver-plating prevents the contact
area of the contact and knives from
ageing, and keeps the temperature
rise within the limits set by the
standards. Owing to the double-knife
construction, forces needed to
operate the disconnectors remain
moderate even at high rated currents.
The operating levers of the disconnectors can be mounted on a flat
base. Busbar joints OJON–ZWJ 5
and 6 may be used for disconnectors rated 2500 A and 4000 A. The
frames and levers of the disconnectors are painted green, and the
shaft terminals are treated with
anti-rust varnish. The knives are
painted red, which makes their
position clearly visible and gives a
pleasant look to the whole disconnector.
The contacts of the disconnectors
are made of copper bar for 630 A and
of cast copper for 1000...4000 A.
Aluminium busbars can be connected, using jointing grease,
to 630...1600 A, disconnectors,
OJON–ZWJ 5 and 6 terminals and
earthing switches.
Special features of OJON
disconnectors
–
–
–
–
–
–
–
–
–
high short-circuit strength
versatile control devices
suitable for aluminium busbars
compact dimensions
silver-plated contacts
cast resin insulators
direct current paths
double-knife construction
red knives – position clearly
indicated
3
OJON 4 GB
Indoor type Disconnectors
Technical data and ordering information
Standards and operating conditions
The disconnectors meet the requirements of IEC Publ. 129 (1984) and the Safety Regulations of the Finnish Electrical Inspectorate (Sähköturvallisuusmääräykset). In accordance
with the standards, the ambient site temperature for indoor disconnectors, must be
–25 oC...+35 oC, and the access of unusually high quantities of dust, smoke, caustic
gasses and humidity to the site must be prevented.
Disconnectors OJON 3–1 A 1000, OJON 3–1/1600, OJON 3–1 A 2500 and OJON 3–1
A 4000 have been approved by the Register of Shipping of the U.S.S.R.
Mounting
Normally the disconnectors are mounted in the upright position with the hinges at the
bottom. Other positions are also possible provided that the operating or locking device
ensure that the knives stay in the open or closed position. Wall mounting with the knives
in a horizontal position must, however, be avoided, as the knives may bend down
sideways from the bearings.
Ordering information
1.
Type and quantity.
2.
Rated voltage Ur.
See tables 1 and 2, pages 4 and 5.
3.
Rated current Ir.
4.
Rated peak withstand current Ip.
Ip of the disconnector > network impulse short-circuit current Is.
The distance of the nearest post insulator is shown in table 2.
5.
Rated short-time withstand current Ik.
Ik of the disconnector > network I1s. Ik is given in table 2 as 1 s value.
Any other length of continuous short-circuit current Ik2 of the network is
reduced to 1 s value with the formula below.
The formula is valid when the duration of tk2 > 1s.
Ik = Ik2 Ö tk2 / s. tk is the duration of Ik2.
6.
Accessories: see table 3 on page 6.
Operating voltage and voltage withstand levels
In accordance with IEC 694 (1980)
Table 1
1 kV
3.6 kV
12 kV
24 kV
Lighting impulse voltage 1.2/50 ms
Across the isolating distance
Between phases and to earth
23
20
46
40
85
75
145
125
Power-frequency voltage 1 min
Across the isolating distance
Between phases and to earth
12
10
12
10
32
28
60
50
Withstand voltages
4
OJON 4 GB
Highest permissible
operating voltage
Indoor type disconnectors
Technical data and ordering information
Technical data
Table 2
Type
Rated
Rated
voltage normal
current
Rated
short-time
current
OJON
kV
kA 1s
3–1A1000
3–1/1600
3–1A2500
3–1A4000
1
1
1
1
3–10/630
3–10/1000
3–10/1600
3–12A2500
3–12A4000
12
12
12
12
12
3–24A630
3–20/1000
3–20/1600
3–24A2500
3–24A4000
24
24
24
24
24
r.m.s.
A
1)
1)
1000/1250
1600/2000
2500/2900
4000/4600
Rated
peak
withstand
current
kA
Distance of
nearest post
insulator from
diconnector
post insulator
Isolating Weight
distance
Nm
mm
50
80
90
90
100
120
150
150
360
400
350
350
630
1000
1600
2500
4000
31,5
40
50
60
60
80
100
100
150
150
3xa
3xa
3xa
3xa
3xa
40
45
60
150
160
630
1000
1600
2500
4000
20
30
40
60
60
50
75
100
150
150
3xa
3xa
3xa
3xa
3xa
2)
2)
2)
2)
mm
mm
mm
mm
Control
torque
40 + 20
50 + 20
70 + 30
130 + 40
kg
60
70
70
65
17
43
49
65
10
15
20
30
30
145
165
160
140
155
20
35
52
71
90
45 + 15
60 + 20
100 + 20
180 + 30
200 + 40
265
270
265
240
260
25
48
65
87
109
+
+
+
+
+
Commercial code
a = phase distance
(1 ) Highest permissible operating voltage 3.6 kV, see table 1 page 4.
(2 ) Higher value in acc. with IEC Publ. 408 (1972) when Un < 660 V.
Note: We can also deliver disconnectors with larger phase distances than detailed in the dimension drawings.
97-1033
97-1041
97-1032
Single pole disconnector current values are the same as the corresponding three phase unit detailed in the table.
OJON 3–1 A 1000
OJON 3–24 A 630
OJON3–10/1000
5
OJON 4 GB
Indoor type disconnectors
Accessories
Technical data and ordering information
Terminals
o
o
OJO–ZMA 10
o
o
Page
OJO–ZMA 38
OJON 3–24 A 2500
OJON 3–24 A 4000
OJON 3–20/1600
OJON 3–20/1000
OJON 3–24 A 630
OJON 3–12 A 4000
OJON 3–10/1600
OJON 3–10/1000
OJON 3–10/630
o
OJON–ZWJ 5 1)
OJON–ZWJ 6 1)
Earthing switches
OJON 3–1 A 4000
OJON 3–1 A 2500
Type
OJON 3–1/1600
Description
OJON 3–1 A 1000
Accessories
OJON 3–12 A 2500
Disconnenctor
OJO–ZMA 10
Earthing
switches
Table 3
24
o
24
o
7,25
OJO–ZMA 38
o
7, 25
Operating arm
YASKA 25
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o 7, 26
Insulated
operating rod
NWA–ZS 5
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
NWA–ZS 6
o
o
o
o
Operating hook
NWA–ZH 6
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o 7, 26
Manual operating
mechanism
OJO–ZA 1 2)
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o 7
o
o
o
o
o
o
o
o
o
o
o
o 8
o
o
o
o
o
o
o
o
o
o
o
o 10
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
Auxiliary switch
UEKO 2C3
OLAN_AL 1
o
o
o
o
OLAN + OLAN-ZT 4
Connecting
levers + frame
OJO–ZAY 11 4)
Locking device
OJO-ZE 1
3)
OJO-ZE 2
3)
Locking coil
o
o
o
o
o
o
7, 26
o
o
11
o
o 35
29
o
o
29
o
o
o
o
o
o
o
o
o
o
OJO–ZLA 6 5)
o
o
o
o
o
o
o
o
o
o
UEKO-ZL 1 6)
o
o
o
o
o
o
o
o
o
o
o
o
OJO–ZLA 3 4)
o
o
7,26
o
o
12, 30
12, 30
12, 31
Extension shaft
BDAM 25 x L
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o 13
Joint sleeve for
extension shaft
OJE–ZAA 25
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
13, 32
Support bearing
OJO–ZU 3
o
o
o
o
o
o
o
o
o
o
o
o
13, 32
1)
2)
3)
4)
5)
6)
Also applicable for aluminium busbars.
Depending on the mounting of the operating mechanism, the operating lever may turn below the mounting level.
Prevents the horizontally mounted disconnector from closing under its own weight.
For manual operating mechanism OJO-ZA 1.
Mounted on the side plate of the disconnector.
For use with manual operating mechanism UEKO 2C3.
6
OJON 4 GB
Accessories
Earthing knives, operating arms and manual
operating devices
Technical data and ordering information
Earthing Knives
As shown in table 3 (page 6) the 630 A OJON_ disconnectors can be supplied
with either an upper or lower earthing knives. Earthing knives have the same
short-circuit strength as the corresponding disconnectors.
98-1060
The main switch and earthing knives are interlocked with a locking device
so that they cannot be closed simultaneously. The locking device is normally
on the left side of the disconnectors. A locking device prevents the earthing
knife from opening and closing under its own weight.
Disconnector fitted with
earthing knives
Disconnector control
93-1065
The following can be used as an operating mechanism for the disconnectors:
– operating rod NWA–ZS 5 (>1 kV) or NWA-ZS 6 (< 1 kV) and hook end
NWA–ZH 6 and arm YASKA 25
– manual operating mechanism OJO–ZA 1 or UEKO 2C3
– motor-operated control mechanism UEMC 40_. Refer to catalogue
34 UEMC 36_ and 34 UEMC 44_.
Motor operating mechanism
UEMC 40_
Motor Operating device UEMC 40_
The type and construction of motor operating device depends on the location
and accessories required. The device can be fitted to the disconnector
shaft or the front of the cubicle. When mounting on the shaft, check that there
is enough space between the disconnector shaft and mounting surface. When
the motor operating device is fitted on the front of the cubicle, the drive is
transfered using a lever system. Local electrical control (Pushbuttons) of the
operating device is available.
Manual operation is also possible by using an operating rod or control handle
when a motor operating device is fitted.
98-1042
Operating arm
98-1039
Manual operating mechanism
OJO-ZA 1 with accessories
Manual operating mechanism
and angle link
The simplest control mechanism is an operating arm and an operating rod.
Opening of the disconnector can be prevented with locking coil OJO–ZLA 6.
Manual operating mechanism, alternative A,
OJO-ZA 1
The manual operating mechanism OJO–ZA 1 for mounting on the front wall
of the cubicle, interlocks the disconnector in the extreme positions with the
help of a stall lever. A suspended pin ensures retention in these positions. The
end that comes through the front panel of the cubicle is covered with a
protective cover that can be locked with a padlock. The manual operating
mechanism can be supplied both with locking coil OKO–ZLA 3 and auxiliary
switch OLAN–AL 1. When there is no auxiliary voltage, the interlock (of the
locking coil) can be opened manually. In accordance with the standards, the
closing movement of the disconnector is from down-position to up-position.
7
OJON 4 GB
Accessories
Earthing knives, operating arms and manual
operating devices
Technical data and ordering information
Manual operating mechanism, alternative B,
UEKO 2C3
97-1048
This manual operating mechanism comprises of a beveled gear on the end
of a shaft from the disconnector, a joint fitted with a position indicator on
the front panel and a control tube joining the two parts. Due to the joint,
the control tube can be moved through an angle of ±40 degrees from the
verticle position. The tube is to be cut to a suiatble length when installing.
The indicator locks the disconnector in the extreame positions. The operating
mechanism may also be locking with a locking coil UEKO-ZL 1 and padlock.
By turning the angle of the beveled gears the operating direction of the
disconnector can be adjusted to always be the same.
Ordering information
Alternative A
1. Quantity and type designation.
2. Types of shaft and intermediate rods.
(Dimensions for A and B given in the table
below and in drawing on page 35).
3. Type of support bearing.
4. Accessories (e.g operating handle) see page 6.
Alternative B
1. Quantity and type designation.
2. Tube length 2500 mm if the standard
lenght of 1500 mm is too short.
3. Additional accessories on page 6.
Delivery lengths
Dimension A
Alternatives:
OJO–ZAA 1 x 1200 shaft
1 x 1800
, A max = 1200 mm
, "
= 1800 mm
Alternatives:
Dimension B
NOTE!
8
OJON 4 GB
OJO–ZAW
1 x 150
1 x 700
flat intermediate bar
OJO–ZAW
2 x 1300 flat intermediate bar
2 x 1800
2 x 2800
, B max = 230 mm
, "
= 780 mm
, "
, "
, "
= 1380 mm
= 1880 mm
= 2880 mm
If dimensions A and B differ from the standard dimensions the next standard size will be cut
to a suitable length when mounting. Fine adjustment of the intermediate bars is between + 20 mm.
Accessories
Support bearing
Technical data and ordering information
Support bearting
Description
Type
Application
Page
Support bearing
OJO–ZU 3
OJON 3–10 ... 24_
32
To be ordered separately
Description
Type
Application, OJO-ZA 1 (UEKO 2C3)
Page
Auxiliary switch
OLAN 6 AL 1
OLAN 9 AL 1
6 change-over contacts
9 change-over contacts
27
35
Power reduction levers and frame OJO–ZAY 11
For auxiliary switch
35
Locking coil
OJO–ZLA 3
UEKO-ZL 1
Locks the manual operating mechanism
(UEKO 2C3) into the extreme positions
30
Angle link
YAEWK 3
Tubular intermediate
bar
OJ–ZDU 7 x 1500
OJ–ZDU 7 x 2500
Cut off to a suitable length when
mounting. C can be min. 550 mm.
35
Operating handle
OJO–ZAK 1
OJO–ZAK 2
UEKO-ZK 1
OJO ZA 1
OJO-ZA 1
(UEKO 2C3)
26
26
9
OJON 4 GB
Auxiliary switches
Technical data and ordering information
Auxiliary switches
Auxiliary switch OLAN-AL 1 can be fixed to the cubicle wall, in connection with
manual operating mechanism or to the frame of the disconnector. The
movement is transmitted from the shaft of the disconnector or manual
mechanism to the switch with levers and intermediate bars. Switches are
available with 6 or 9 change-over contacts. The contacts are silver-plated
and are double breaking. Protection class is IP20.
97-1029
Technical details of auxiliary switches
Insulation class
500 V
Continious load current
OLAN 6 AL 1, OLAN–ZT 4
and YAWAS 6 fitted to
OJON 3-12 A 4000
disconnector
16 A
Breaking capacity over 5000 breaks when L/R < 40 ms
24 V–
16 A
60 V–
10 A
110 V–
5A
220 V–
2A
Mechanical life 10 000 operations
Position indication
The auxiliary switch has a position indicator which can be used when adjusting
the movement transmission levers. The contact diagram shows the operation
of the contacts as the function of the turning angle of the control lever
To be ordered separately
Contact diagram
–
–
–
–
Terminals and cable glands MRRNL 16 tai 21
Universal tube terminal
MRPA 16 tai 21
Pica sensor
RPLA 16 tai 23
For additional parts see page 11
Connection diagram
The largest conductor size that can be connected is 4 square mm.
10
OJON 4 GB
Auxiliary switches
Additional parts
Technical data and ordering information
Additional Parts
Parts
Note
Mounting of
auxiliary switch
Description
Type
To manual operating
mechanism OJO–ZA 1
Transmission
levers with frame
OJO–ZAY 11
Adjustable lever
YAWAS 6
For fixing on
OJON 3–10...24 kV
disconnector
Support and
intermediate link
OLAN–ZT 4
Page
35
Models of installation p.20
29
1. 630...4000 A
2. 630...4000 A
3. 630...1000 A
on the left or the right side. 28
Choise of mode of installation as effect by the
placing of the earthing
switches, locking coil
and chock absorber.
OJON 3– 10 + OLAN 912
only mode 3 and 4 of
installation.
For separate mounting
Intermediate bar
OJ–ZDU 3x2000
OJ–ZDU 4x2000
The bar is to be cut to a
suitable length when
mounting
Adjustable lever
YAWAS 6
For shaft diam. 25
28
11
OJON 4 GB
Interlocking
Technical data and ordering information
Interlocking
The use of locking devices in connection with different disconnectors is
detailed in table 3, page 6.
A. Disconnector interlocking when subject to gravity or
short-circuit and other disturbances
When operating arm controlled, the disconnectors are interlocked with locking
device OJO–ZE_ or locking coil OKO–ZLA 6. When the disconnector is
mounted in a horizontal plane, locking device OJO–ZE_ must always be used
to prevent the knives from closing under their own weight. Manual operating
mechanism OJO–ZA 1 locks the disconnector in the closed and the open
position with no additional equipment.
97-1036
B. Disconnector interlocking to prevent unintentional
operation
Locking device, arm and
auxiliary contacts fitted on
OJON 1-10/630/E1
disconnector.
When operating arm controlled, locking coil OJO–ZLA 6, which is fixed to the
frame of the disconnector is used. Manual operating mechanism OJO–ZA 1
can be locked with a padlock or locking coil OJO–ZLA 3. Manual operating
mechanism type UEKO 2C3 can be locked with a padlock or locking coil
UEKO-ZL 1.
99-1013
Locking coils
Locking coil
OJO-ZLA 3
The auxiliary control voltage of locking coils (OJO–ZLA 3 and 6) is either
DC or full-wave rectified alternating current. In the absence of voltage, the
interlock can be opened by pulling the armature with the operating rod or by
hand. Locking coil OJO-ZLA 3 is used with the operating mechanism while
locking coil used OJO–ZLA 6 is fixed to the left or right side of the disconnector.
Locking coil UEKO-ZL1 is to be fitted to the manual operating mechanism
UEKO 2C3 position indicating device on the inside of the cubicle.
97-1050
Voltage of interlockup coil
Locking coil
UEKO-ZL 1
Voltage
OJO-ZLA 3, 6
24 VDC
30 VDC
48 VDC
60 VDC
110 VDC
125 VDC
220 VDC
230 VAC
X
X
X
X
X
X
X
X
UEKO ZL 1 Coil consumption and
time constant
X
X
X
X
1)
X
X
OJO-ZLA 3 12 W 40 ms
1) Rectifier included
Ordering information
1. Type and quantity
2. Coil voltage
3. Is locking coil OJO–ZLA 6 on the right or the left side of the
disconnector.
12
OJON 4 GB
Interlocking
Technical data and ordering information
Extension shaft and support bearing
When needed, the shaft of the disconnector can be extended with extension
shaft BDAM 25 x L. Extension sleeve OJE-ZAA 25 with its spring bolt pin and
1 or 2 support bearings OJO-ZU 3 are then needed.
To be ordered separately
98-1034
Extension shaft dim. 25 x L
Dimension L must be given when ordering.
Weight: 3.85 kg per meter
Extending the shaft
Fuse-bases
The frame of the fuse-bases is made of steel plate and the insulators of cast
resin. Fuse-links in accordance with DIN 43625 are suitable for the bases.
The fuse bases can be fitted with fuse blown axiliary contacts. The auxiliary
contacts are 1 NC rated at 10A.
To be ordered separately
97-1034
Fuse cartridges -EBD CEF_. Refer to brochure CEF_CMF 1.
Fuse changing handle O-ZHPA 5
Fuse bases
12 and 24 kV
13
OJON 4 GB
Indoor type disconnector
OJON 1–1
Dimension drawings
OJON 1–1/1000
OJON12
1 kV 1000 A
OJON 1–1 A 2500
107,5
285
107,5
1 kV 2500 A
70°
ø 25
8
40
16
281
64
169
8
174
116
M12
OJON-ZWJ 5
M12
315
40
ø 15
M12
40 80
OJON13
120
14
OJON 4 GB
285
500
20
Indoor type disconnectors
OJON 1–1
Dimension drawings
OJON 1–1 A 2500/E3
OJON 15
1 kV 2500 A
To be ordered
separately
OJON 1–1 A 4000/E2
OJON 16
1 kV 4000 A
To be ordered
separately
15
OJON 4 GB
Indoor type disconnectors
OJON 1–1
Dimension drawings
OJON 1–10/630 E1
12 kV 630 A
60
4
8
Ø
M16
15
R206
Ø
75°
25
385
230
265 345
72.5
M12
75
17.5
150
OJON18
228
20
40
110
150
292
445
OJON 1–24/630/E
24 kV 630 A
8
4
60
Ø
M16
15
R316
90°
Ø
495
455
375
25
340
75°
122.5
17.5
M12
75
OJON11
313
377
637
16
OJON 4 GB
20
40
250
110
250
Indoor type disconnectors
OJON 3–1
Dimension drawings
OJON 3–1A 1000
1 kV 1000 A
262
530
85
174
85
360
151
330
100
70
100
57
20
90 o
60 o
236
228 195
94
ø 25
OJON 38
ø 15
60
M12
M16
33
15
OJON 3–1/1600
1 kV 1600 A
310
620
195
590
200
200
167
70
6
ø 15
90°
65°
285
440
250
105,5
OJON 39
26
45
110
80
26
M16
110
20
17
M12
17
OJON 4 GB
Load type disconnectors
OJON 3–1
Dimension drawings
OJON 3–1 A 2500
1 kV 2500 A
110
620
110
322
590
200
210
80
70
200
40
6
90°
65°
285
250
R153
105,5
ø 25
M12
ø 15
OJON310
M12
45
M12
40
145
OJON - ZWJ 5
OJON 3–1 A 4000
1 kV 4000 A
110
110
620
390
590
200
245
100
200
70
90
14
50
6
40
90°
285
ø 25
65°
250
123
R193
107,5
45
OJON311
ø15
18
OJON 4 GB
M12
100
OJON - ZWJ 6
100
M 12
162
45
Indoor type disconnectors
OJON 3–10
Dimension drawings
OJON 3–10/630
12 kV 630 A
450
150
95
150
8
370
92,5
185
40
ƒ
ƒ
Ø
R206
25
OJON 312
75
0
0
228
400
445
OJON 3–10/1000
12 kV 1000 A
150
150
544
260
531
230
490
220
220
100
75°
330
295
422
R210
90°
380
105
OJON313
ø 25
85
M16
60
45,5
ø 15
460
19
OJON 4 GB
Indoor type disconnectors
OJON 3–10
Dimension drawings
OJON 3–10/1600
12 kV 1600 A
26
80
M16
310
M12
R240
90°
415
330
ø25
500
295
75°
97,5
ø25
26
220
85
220
272
OJON3_10
490
150
544
150
505
OJON 3–12 A 2500
12 kV 2500 A
548
700
150
107.5
80
150
640
315
40
280
280
6
60°
90°
370
390
330
R278
135
107.5
OJON 314
40
20
OJON 4 GB
Ø
M12
85
250
25
8
64
8
16
M12
OJON-ZWJ 5
Indoor type disconnectors
OJON 3–12
Dimension drawings
OJON 3–12 A 4000
12 kV 4000 A
150
595
150
700
640
350
100
280
280
45
90
45
14
14
M16
6
67°
90°
330
390
370
OJON 315
115
ø 25
R298
107,5
85
20
267
45
M12
M12
OJON-ZWJ6
OJON 3–24 A 630
24 kV 630 A
8
M16
ø 15
40
4
R316
90°
ø 25
495
455
340 375
75°
122,5
M12
75
17.5
255
313
20
250
590
250
OJON 316
636
255
540
21
OJON 4 GB
Indoor type disconnectors
OJON 3–20
Dimension drawings
OJON 3–20/1000
24 kV 1000 A
334
60
105
M16
4
R315
90°
ø 25
435
485
525
400
75°
ø 15
138
138
OJON 317
M12
280
280
85
610
250
664
635
250
OJON 3–20/1600
24 kV 1600 A
26
80
M16
388
M12
R340
90°
520
435
400
Ø 25
605
75°
138
Ø 15
26
85
280
280
346
OJON3_20
610
22
OJON 4 GB
250
664
240
685
Indoor type disconnectors
OJON 3–24
Dimension drawings
OJON 3–24 A 2500
24 kV 2500 A
720
250
840
780
390
350
80
40
250
350
20
105
6
60°
90°
500
440
ø 20
155
R388
OJON 318
480
ø 25
M12
85
107,5
40
8
64
8
16
M12
325
OJON-ZWJ 5
OJON 3–24 A 4000
24 kV 4000 A
840
250
775
425
100
350
45
350
14
45
90
14
M16
6
90°
67°
480
500
440
ø 25
155
R 408
M12
107,5
OJON319
250
780
45
85
342
OJON-ZWJ 6
M12
23
OJON 4 GB
Terminals
Dimension drawings
2500 A terminal
7,5
OJON-ZWJ 5
To be ordered as required for
2500 A disconnectors.
107,5
Silver plated electrolytic
copper.
40
M12
Weight: 2.1 kg
20
20
40
20
15
80
77
20
ø 14
OJONZWJ1
40
20
40
20
20
80
4000 A terminal
OJON-ZWJ 6
50
To be ordered as required
for 4000 A disconnectors.
Silver plated electrolytic
copper.
M12
40
20
M16
80
Weight: 4.45 kg
OJONZWJ2
45
24
OJON 4 GB
90 118
14
100
107,5
Earthing knives
Dimension drawing
Disconnector earthing knives
25
90°
ø25
90°
73
90°
OJOZMA21
C
A
A
B
Earthing knife type
Disconnector type
A
B
C
OJO-ZMA 10
OJO-ZMA 38
kg
OJON 3-10/630
185
750
173
9,0
OJON 3-24 A 630
255
1090
258
10,1
Note
When ordering the position
of the earthing knife is to be
stated (above or below).
25
OJON 4 GB
Disconnector control
Dimension drawings
Operating rod
Operation hook
YASKA 25
NWA-ZS 5
NWA-ZH 6
NWAZH6
Operating arm
YASKA
NWAZS5
NWA-ZS 6
Weight: 1,5 kg
NWAZS6
Weight: 0.9 kg
Weight: 0,9 kg
Operating handle
Operating
handle
OJO-ZAK_
Angle link
YAEWK 3
UEKO-ZK 1
A
570
Ø
(ø25.0
(Ø
25.0uritettu)
splined)
OJO-ZAK 1
OJO-ZAK 2
OJON 4 GB
25
A
330
500
Weight
kg
1,2
1,6
85
YAEWK
OJOZ1
Type
26
Ø
117
UEKOZK1
35
15
Ø
18
Weight: 1,8 kg
Auxiliary switches
Dimension drawings
Auxiliary switch
Auxiliary switch
OFC-ZA 1
OFC-ZA 2
OFCRN 24 A 3
OFCRN 12 A 3
101
OFCR21
OFCZA1
101
343
343
Auxiliary switch
OLAN-AL 1
132
30
A
90°
5°
Ø
5°
12
Ø
8
29 85
R45
25
100
M8
M8
48
Reikäaihio
PkPk21,
Pk1616
Knock-out hole
21. Pk
Type
OLAN 6AL1
OLAN 9 AL1
Change-over
contacts
A
Weight
kg
6
9
136
172
1,5
1,8
27
OJON 4 GB
Methods of mounting
Dimension drawing
OJ-ZDU 3 x 2000
OJ-ZDU 4 x 2000
ZDU4
Intermediate rod
ZDU3
Intermediate rod
Adjustment margin + 15 mm
Adjustment margin + 15 mm
Weight: 1,6 kg
Weight: 1,7 kg
Auxiliary switch support (right)
ZT4
OLAN-ZT 4
If the mounting position is
not mentioned it is fitted in
position 4.
28
OJON 4 GB
Weight: 0,8 kg
Methods of mounting and interlocking
Dimension drawings
Adjustable lever
YAWAS
YAWAS 6
+0
To be drilled when fitting Ø 5 +0,1
Weight: 0,8 kg
Locking device
OJO-ZE_
ZE
Ø 12 hole drilled when fitting
Type
A Weight
mm
kg
OJO-ZE 1
187
1,1
OJO-ZE 2
237
1,3
Ø 8 hole drilled when fitting
29
OJON 4 GB
Locking
Dimension drawing
Locking coil
OJO-ZLA 3
ZLA3
Position indicator
AMP No. 180909
Weight: 1,1 kg
Locking coil
ZLA6
OJO-ZLA 6
+0
Ø8 +0,1Drilled
when fitting
Incoming cable gland can also be turned upwards.
Weight: 2,3 kg
30
OJON 4 GB
Position indicator
Locking
Dimension drawings
Locking coil
Front of the cubicle
UEKOZL1
UEKO ZL1
31
OJON 4 GB
Extension bushing and support bearing
Dimension drawings
Extension bushing
OJE-ZAA 25
Drill when assembling
Extension shaft
ZAA25
Disconnectors shaft
Weight: 0,52 kg
2 pcs spring pins included.
Support bearing
OJO-ZU 3
ZU3
Mounting
To be used for 10...24 kV OJON-disconnector extension shaft support bearing.
Angle iron not included.
Weight: 0,35 kg
32
OJON 4 GB
Fuse base for indoor use
Dimension drawing
Fuse base
294
OFCRN 12 A 3
M12x30/30
e = 292
Fuse link
DIN 43625
276
8
233
163
Ø 17
620
Ø 15
Ø 17
95
30
180
OFCR1
366
490
20
By moving one insulator 3,6/7,2 kV e = 192 mm fuses can be fitted.
The fuse base can be fitted with a blown fuse auxiliay contact, see page 27.
The auxiliary switch is one NC contact.
Fuse base
444
OFCRN 24 A 3
M12x30/30
e = 442
8
Fuse links
DIN 43625
371
327
258
514
Ø 17
620
M12
Ø 15
95
Ø 17
30
180
OFCR2
366
20
638
33
OJON 4 GB
Fuse base for indoor use
Dimension drawing
Fuse base
OFCRN 36 A 3
539
M12x30/30
e = 537
Fuse links
DIN 43625
8
478
435
365
514
620
M12
Ø 15
40
95
OFCR3
180
366
34
OJON 4 GB
20
Ø 17
720
Manual operating mechanism
Dimension drawing
Manual operating
mechanism
Drilling the front plate
For removing the interlocking coil we recommend a covered
hole of 100 mm diameter for service access.
Diagram for cover plate fixing with 8 mm holes.
OJO-ZA 1
For shaft
Position indicator
ZA
Drill
Drillø 2,2
Poraa
Ø
10,2
Ø
2,2
Manual operating
mechanism
Poraa
Drill Ø ø
1111
Øø25
25 uritettu
splined
180°
180oo
180 closed
Kiinni
Drill Ø ø5555
Poraa
UEKO 2C3
A
45
Max.
Max.
40°
40 o
45
115
90oo closed
90°
kiinni
90
kiinni
54
Ohjausputki ø 33,5 x 1500 mm
Putken
katk. pituus
A - x150
mm
Transmission
tube Ø =33,5
1500
mm
Tube length = A - 150 mm
Erottimen
Shaft of theakseli
disconnector
35
OJON 4 GB
99-1012
Motor operating mechanism UEMC 40 K6
types mounted on the body of the
disconnector.
Ykkös-Offset Oy
3000, 99-10
Apparatus and Switchgear Business Unit
P.O.Box 613, FIN-65101 Vaasa, Finland
Phone: +358 10 22 4000
Fax:
+358 10 22 44661
OJON 4 GB 99-10
99-1011
Motor operating mechanism UEMC 40 A, B
ja D -types mounted on the front of the
cubicle.
36
OJON 4 GB