No.

Description

Unit

Data

1

Rated voltage (Un)

KV

24

2

Max.working voltage(Umax)

KV

24

3

Rated frequency

Hz

50

4

Rated current

A

630

5

Rated short time current
1 secretary(Ith)
3. secretary(Ith)

kA rms

20
10

6

Rated peak current (Idvn)

kA peak

50

7

Rated short circuit making capacity ima

kA peak

50

8

Rated mainly load breaking current capacity cosΦ=0.7

A rms

630

9

Max Mainly active load breaking capacity cosΦ=0.7

A rms

630

10

Rated closed breaking capacity cos Φ=0.3

A rms

630

11

Rated single breaking capacity

A rms

630

12

Rated cable charging capacity

A rms

50

13

Power frequency withstand voltage 50Hz 1 min

kA rms
kA rms

55
65

14

To earth Interphase/insulating voltage peak

kV peak
kV peak

145
125

15

Mechanical life

2500 operation

16

Mac.operating torque when Closing Opening

N.M.
N.M.

64

64

17

Operating angle on the shaft

Degree

80

18

Operating time

Ms

35

19

Arc-extinguish time

Ms

20

20

Earthing switch attachment Rated short-time current
Peak withstand current
Short circuit making capacity
Power frequency withstand voltage
(Lighting )impulse resisting voltage
Pole distance

kA rms
kA peak
kA peak
kV
kV
Mm

25

50

50

55

125

275