Name

Unit

Value

Main circuit

Rated working voltage (Ue)

kV

7.2

12

Rated working current (Ie)

A

630

Rated frequency (fr)

Hz

50~60

Power frequency withstand voltage

Wiring terminal to earth

kV

32

42

Vacuum breaks

kV

32

42

operation mechanism and auxiliary circuit to earth

kV

2.0

Lightening impulse withstand voltage

Wiring terminal to earth

kV

60

75

Vacuum breaks

kV

60

75

Rated making capacity（100 times）

kV

6.3

Rated breaking capacity（25 times）

kV

5

Ultimate breaking capacity（3 times）

kV

6.3

Rated short time withstand current and lasting time

kV/s

6.3/4

The main circuit resistance

μΩ

≤200

Mechanical life

10000time

30

Electric life

10000time

10

Operational power supply

Mechanical holding

closing coil current

A

≤6

opening coil current

A

≤2

Electric holding

closing current

A

≤5

holding current

A

≤0.5