Home / Indoor Type High-voltage Circuit Breaker / VD 9-12 Indoor Permanent Magnetic Vacuum Circuit Breaker

VD 9-12 Indoor Permanent Magnetic Vacuum Circuit Breaker

Specification: 1000-1200 USD/PIECE
Use Parts: 10 PIECE
Supply Ability: 1000 PIECE
Payment Terms: TT , LC , Others
Tags:
Specification1000-1200 USD/PIECE
Use Parts1 PIECE
Supply Ability1000 PIECE
PortNingbo or Shanghai
Payment TermsTT , LC , Others
Place of OriginHang Zhou,China

VD9-12 Indoor Permanent Magnetic Vacuum Circuit Breaker

VD9-12 type indoor permanent magnetic vacuum circuit breaker is main switchgear to control and protect distribution system of network industrial enterprises, our patented CDY permanent magnetic operating mechanism is cooperated with breaker, and direct driving system makes this type of breaker more excellent, specially suitable for frequently switching, or breaking short circuit for many times.A special carries provided for breaker, forms carrier type breaker system.

Main Technical Parameters

Item

Description

Unit

Data

1

Rated voltage

KV

12

2

1min Power frequency withstand voltage

42

3

Lightning impulse withstand voltage(peak)

75

4

Rated frequency

Hz

50

5

Rated current

A

630  1250

630 1600 2500

1250  2000  3150

6

Rated short circuit breaking current

KA

20

25

31.5

40

7

Rated short circuit withstand current

20

25

31.5

40

8

Duration of rated short circuit current

S

4

9

Rated peak withstand current

KA

50

63

80

100

10

Rated short circuit making current

50

63

80

100

11

1min Power frequency withstand voltage on secondary circuit

V

2000

12

Rated single/back capacitor bank breaking current

A

630/400(40KA:800/400)

13

Rated capacitor bank making current

KA

12.5

14

Opening time

ms

≤50

15

Closing time

≤70

16

Mechanical life

time

30000

17

Nos of breaking rated current

30000

18

Nos of breaking rated short circuit breaking current

50

19

Permissible abraded thickness of moving, static contacts

mm

3

20

Opening distance of contact

9±1(1600A:11±1)

21

Over travelling distance contact

3.5±0.5

22

Jumping time of contact at closing

ms

≤2(40KA≤3)

23

Asynchrony of three phase opening, closing

≤2

24

Average opening speed

m/s

0.9~1.2

25

Average closing speed

0.5~0.8

26

Rebound height of contact opening

mm

0

27

Ressistance of main circuit

μΩ

≤40(Below1250A)

≤35(1600~2000A)≤25(Over2500)

28

Contacting pressure at closing contact

N

2000±200(20KA)2400±200(25KA)

3100±200(31.5KA)4300±200(40KA)

29

Rated operating sequence


off-0.3S-on/off-180s-on/off

 

Note:Please contact the factory to confirm the latest parameters

Outline and installation dimension


Send a message to us

CONTACT US

+86-577-62697170
Liushi Town, Yueqing, Wenzhou, Zhejiang Province.

COMPANY DETAILS

Yueqing Aiso Electric Co.,Ltd. is located in Liushi Town, Yueqing, Wenzhou, Zhejiang Province. Industrial Zone, Liushi town is China's high and low voltage electrical appliances.
Yueqing Aiso Electric Co., Ltd