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