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Switch cabinet accessoriesHLVP-12(VS1) Side-mounted 630A 1250A Indoor VCB Vacuum Circuit Breaker
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HLVP-12 series side-mounted vacuum circuit breaker is a indoor high voltage switchgear.It applies to a three phase power system under rated voltage 12KV and rated frequency 50Hz as a protective and control appliance.Because of the special superiority of vacuum circuit breaker,it is especially suitable for a site needs frequent operation or cut-off short circuit current many times under a rated current.

HLVP-12 series side-mounted vacuum circuit breaker adopts fixed installation.It is mainly used in fixed switch cabinet.The circuit breaker can be used independently, and can be also used for ring power supply, box transformer or various non-standard power supply systems.

NO.

ITEM

UNIT

DATA

1

Rated voltage

KV

12

2

Rated current

A

630/1250

630/1250

3

Rated short-circuit breaking current

KA

25

31.5

4

Rated short-circuit closing current

KA

63

80

5

Rated peak-resistant current

KA

63

80

6

4S Rated short-time withstand current

KA

25

31.5

7

Rated insulation level

Power frequency withstand voltage

(rated before and after breaking)

KV

42(Fracture 48)

Impulse withstand voltage

(rated before and after breaking)

KV

75(Fracture 84)

8

Rated operating sequence

O-0.3s-CO-180s-CO

9

Life

Times

10000

10

Rated short-circuit breaking current breaking frquency

Times

50

11

Rated closing voltage of operating mechanism(DC)

V

110,220

12

Rated opening voltage of operating mechanism(DC)

V

110,220

13

Contact distance

mm

11±1

14

Overtravel(Contact spring compression length)

mm

3.5±3.5

15

Three phase opening/closing bounce time

ms

2

16

Contact closing bounce time

ms

2

17

Average opening speed

m/s

0.9-0.12

18

Average closing speed

m/s

0.4-0.8

19

Opening time

Max. operating voltage

s

0.05

Min. operating voltage

s

0.08

20

Closing time

s

0.1

21

Circuit resistance of each phase

μΩ

50

22

The accumulated thickness that allows wear of moving/fixed contact

mm

3

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