No.

Item

Unit

Parameter

Load switch

Load switch + fuse

1

Rated current（Maximum voltage）

KV

3.6 、7.2 、12

2

Rated frequency

HZ

50

3

Rated current

A

630

100

4

Rated short-time withstand current

KA

20

/

5

Rated peak withstand current

KA

50

/

6

Rated short circuit duration (main circuit / ground loop)

S

3/2

/

7

Rated short circuit closing current

KA

50

80

8

Rated short-circuit breaking current

KA

/

31.5

9

Rated transfer current

A

/

1700

10

Rated power frequency withstand voltage

Interphase

KV

42

（1min）

Fracture room

KV

48

11

Interphase

KV

75

Rated lightning impulse withstand voltage

Fracture room

KV

85

12

Auxiliary and control loop to ground short-duration power frequency withstand voltage

KV

2000

13

Protection level

V

IP3X