ZW7-40.5 outdoor high voltage vacuum circuit breaker

Technical Specification

Rated voltage

40.5

Rated insulation

Power frequency withstand voltage

Dry

kV

95

Wet

80

level

Lightning impulse withstand voltage (peak)

185

Rated current

A

1250、1600、2000

Rated short-circuit breaking current

kA

20、25、31.5

Rated operation sequence

Points -0.3s combined -180s combined

Rated short circuit current breaking times

Times

≥30

Rated short circuit closing current (peak)

kA

50、63、80

Rated peak withstand current

Rated short-time withstand current

kA

20、25、31.5

Rated short circuit continuous current

S

4

Average opening speed

m/s

1.5±0.2

Average closing speed

0.7±0.2

Contact closing bounce time

≤2

Three-phase combined (minute) gate synchronous time difference

S

≤2

Closing time

≤150

Opening time

≤60

Mechanical life

Times

10000

Rated operating voltage and auxiliary circuit rated voltage

V

DC220、110、24

AC220、110、24

DC resistance per phase circuit (without transformer)

μΩ

≤100

Dynamic and static contacts allow wear thickness

mm

3

Weight

kg

800