Item

Unit

Data

Rated voltage

kV

12

Rated frequency

Hz

50

Rated current

A

630/1250

Rated short circuit breaking current

kA

20/25

Rated peak withstand current (peak)

kA

50

Rated short-time withstand current (4S)

kA

20

Rated short-circuit closing current (peak)

kA

50

Mechanical life

Times

Spring Operation 10000   

Permanent Magnetic 30000

Rated current breaking

Times

O-0.3s-CO-180s-CO

Rated short-circuit breaking current

Times

30

Power frequency withstand voltage (1min)

kV

42(across open contacts:49/34)

Lightning impulse withstand voltage (peak) inter-phase

kV

75 ( across open contacts:85)

Closing time

ms

25~60

Total breaking time

ms

≤100

Arcing time

ms

≤20

Rated input power of energy storage motor

w

40

Rated operating voltage and rated voltage of auxiliary circuit

V

  DC 220,110,24                   AC 220,110,24

Storage time under rated voltage

s

≤10

Rated current of over- current tripper

A

5