Vacuum Circuit Breaker 12kV (ZW43G)

Model NO.

ZW43-12(G)

Type

Circuit Breaker

Function

Conventional Circuit Breaker

Certification

ISO9001-2000, CE, CCC

Rated Short Circuit Duration

4s

Mechanical Life Time

10,000 times

Rated Current of Over Current Release

5A

Contact Opening Distance 

8-10mm

Weight

90Kg

Trademark

VACEM

Origin

Wenzhou, China

Item

Unit

ZW43-12(G)/630-16

ZW43-12(G)/630-20

Rated voltage

kV

12

Rated current

A

630

Rated short-circuit breaking current

kA

16

20

Rated short circuit making current (peak)

kA

40

50

Rated peak withstand current

kA

40

50

Rated short time withstand current

kA

16

20

Rated short circuit duration

s

4

Rated insulation level lighting impulse withstand voltage (peak)

kV

phase to phase, to earth 75; fracture 85

Rated insulation level 1 min P.F. withstand voltage

kV

phase to phase, to earth 42;fracture 48

Rated operating sequence

O-0.3s-CO-180-CO (electrical mechanism)

Rated short circuit current breaking times

time

30

Mechanical life time

time

10000

Rated operation voltage (O/C coil)

V

DC220,110; AC220

Allowable attrition thickness of moving and fixed contact

mm

3

Rated current of over current release

A

5

Current ratio of current transformer

200/5 400/5 630/5

Contact opening distance

mm

9±1

Contact over travel

mm

2+1(-0.5)

Average opening speed

m/s

1.2±0.2

Average closing speed

m/s

0.6±0.2

Opening time

ms

15~50

Closing time

ms

25~80

Closing bounce time

ms

≤2

Tri-phase O/C synchronous

ms

≤2

Each phase circuit DC resistance

μΩ

≤80

Energy-stored motor rated voltage

V

DC/AC 220

Energy-stored motor rated power

W

70

Energy-stored motor energy-stored time

S

≤8

Weight

Kg

90