No.

Item

Unit

Value

1

Rated voltage

KV

12

2

Rated lighting impulse withstand voltage

KV

Inter phase or to ground 75,fructure 80

3

Rated short-time power frequency withstand voltage

KV

Inter phase or to ground 42,fructure 48

4

Rated short-circuit breaking current

KA

20

25

31.5

40

5

Rated current

A

630/1250/1600

1250/1600/2000/2500

1600/2000/3150

6

Rated thermo stability current(valid)

KA

25

31.5

40

7

Rated dynamic stability current(peak)

KA

63

80

100

8

Rated short-circuit making current(peak)

KA

63

80

100

9

Rated operations of short-circuit breaking current interruption

Times

50(40kA is 30)

10

Rated working current of over current and tripping coil

A

5

11

Rated operating sequence

0-0.3s-CO-180s -CO/0-180s-CO-180s-CO(40KA)

12

Rated current of auxiliarate switch

A

AC10,DC5

13

Rated voltage of energy saving release

V

AC.DC220 AC.DC110

14

Closing time

Times

≤75

15

Opening time

≤60(40)

16

Power of energy saving motor

W

275

17

Energy saving time

S

≤15

18

Mechanical life

Times

20000