Pole Mounted Outdoor Vacuum Circuit Breaker

NO.

Name

Unit

Parameter

1

Rated Voltage

12

2

Rated insulation level

1 min power frequency withstand voltage

Wet:34,Dry:42(positive,negative),48(fracture and isolation clearance)

Lightning impulse withstand voltage(peak)

earth,phase

75

insulating fracture

85

3

Rated Current

A

400,63

4

Rated short-circuit breaking current (peak)

KA

12.5,16,20

5

Rated short-circuit closing current (peak)

31.5.40.50

6

Rated dynamic current (rated limit through-current)

31.5,40,50

7

Rated short time withstand current

12.5,16,20

8

Breaking times of rated short-circuit switch-off current

Times

30

9

Rated duration of short-circuit

S

4

10

Rated operating order

O-0.3S-CO-180S-CO

11

Mechanical life

Times

10000

12

Automatic striking and grinding cumulative thickness

mm

3

13

Operating mechanism rated switch-on voltage

V

AC,DC110/220