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General characteristics of circuit-breakers with right lateral operating mechanism for
IP30 UniAir type switchgear (12 – 17.5 – 24 kV)
Circuit-breaker
Standards
Rated voltage
Rated insulation voltage
Withstand voltage at 50 Hz
Impulse withstand voltage
Rated frequency
Rated normal current (40°C)
Rated breaking capacity
(rated symmetrical short-circuit current)
Rated short-time withstand
current (3s)
Making capacity
Operation sequence
[ O - 0.3s - CO - 15s - CO ]
Opening time
Arcing time
Total breaking time
Closing time
Overall
dimensions
H
(maximum)
D
Pole centre distance I [mm]
W
Weight
(3)
Application of PR521 protection device
Application of PR521/DK protection device
Table of standardised dimensions
Electric circuit diagram
Operating temperature
Tropicalization
IEC: 60068-2-30, 60721-2-1
Electromagnetic compatibility
(1) For circuit-breakers with PR 521 device and 3 current sensors, increase the weight indicated by 20 kg
(2) Rated current of the current sensors (the PR521 device and the current sensors are optional)
(3) DK type phase current sensors on board the circuit-breaker and toroidal CT for DK type homopolar protection not on board (the PR521/DK device and the DK sensors are
optional)
(4) VD4/UniAir for P1/E Unit IP30 version (unit with plug-in circuit-breaker); the circuit-breaker for the same Arc Proof version unit is not available
(5) VD4/UniAir-2R for P1E/2R Unit IP30 version (unit with withdrawable circuit-breaker on supply and load side); the circuit-breaker for the same Arc Proof version unit is not
available
(6) VD4/UniAir-A for P1/A Unit IP30 version (unit with fixed "upside-down" circuit-breaker); the circuit-breaker for the same Arc Proof version unit is not available
(7) VD4/UniAir-F for P1/F Unit IP30 version (unit with fixed circuit-breaker without wheels and cabled to terminal box); the circuit-breaker for the same Arc Proof version unit
is not available
12
VD4/UniAir 12
IEC 62271-100
CEI 17-1 (file 1375)
Ur [kV]
12
Us [kV]
12
Ud (1 min) [kV]
28
Up [kV]
75
fr [Hz]
50-60
Ir [A]
630
Isc [kA]
12.5
16
20
25
12.5
Ik [kA]
16
20
25
31.5
Ip [kA]
40
50
63
[ms]
40...60
10...15
[ms]
[ms]
50...75
[ms]
50...70
734.5
(4) (5) (6)
H [mm]
W [mm]
374
(4) (5) (6)
(4) (5) (6) (7)
D [mm]
1170
300
70
(4) (5) (6)
- 67
[kg]
In [A]
40 - 80 - 250 - 1250
(3)
1VCD000102
1VCD000103
1VCD000104
1VCD000105
1VCD400098
1VCD400097
- 5 ... + 40
[°C]
IEC 60694
VD4/UniAir 17
17.5
17.5
38
95
50-60
800
1250
630
—
—
12.5
16
16
16
20
20
20
25
25
25
—
—
12.5
16
16
16
20
20
20
25
25
25
—
—
31.5
40
40
40
50
50
50
63
63
63
40...60
10...15
50...75
50...70
- 725
(7)
734.5
(4) (5) (6)
- 282
(7)
374
(4) (5) (6)
(4) (5) (6) (7)
1170
300
(7)
70
(4) (5) (6)
(2)
40 - 80 - 250 - 1250
(3)
(4)
1VCD000102
(5)
1VCD000103
(6)
1VCD000104
(7)
1VCD000105
(4) (5) (6)
1VCD400098
(7)
1VCD400097
- 5 ... + 40
VD4/UniAir 24
24
24
50
125
50-60
800
1250
630
—
—
12.5
16
16
16
20
20
20
—
—
—
—
—
12.5
16
16
16
20
20
20
—
—
—
—
—
31.5
40
40
40
50
50
50
—
—
—
40...60
10...15
50...75
50...70
- 725
(7)
734.5
- 282
(7)
374
1170
300
- 67
(7)
70
(4) (5) (6)
(2)
40 - 80 - 250 - 1250
(3)
(4)
1VCD000102
(5)
1VCD000103
(6)
1VCD000104
(7)
1VCD000105
(4) (5) (6)
1VCD400098
(7)
1VCD400097
- 5 ... + 40
800
1250
—-
—-
16
16
20
20
—-
—-
—-
—-
16
16
20
20
—-
—-
—-
—-
40
40
50
50
—-
—-
(4) (5) (6)
- 725
(7)
(4) (5) (6)
- 282
(7)
(4) (5) (6) (7)
- 67
(7)
(2)
(4)
(5)
(6)
(7)
(4) (5) (6)
(7)
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