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Name

Unit

Value

Main circuit

Rated working voltage (Ue)

V

1140

Rated working current (Ie)

A

250

Rated frequency (fr)

Hz

50~60

Rated making capacity

A

12Ie (AC-4)

Rated breaking capacity

A

10Ie (AC-4)

Withstand overload current capacity/s

A/s

8Ie/10

Power frequency withstand voltage

Between phases, phase to earth

kV

4.2

Vacuum breaks

kV

10

Lightening impulse withstand voltage

kV

8

Control circuit

Rated voltage (Us)

V

220

Rated power (Ps)electric holding

VA

≤600/50 (absorbing/holding)

Auxiliary circuit

Form

4a+3b

Rated value

AC 380V/5A

Control circuit, auxiliary circuit to earth power frequency withstand voltage

kV

2

Rated operating frequency

Long-term

time/h

600(AC-3), 300(AC-4)

Short-term

time/h

3600

Mechanical endurance

10000 times

30

Electrical endurance

10000 times

6

Mechanical characteristics

Closing time

ms

≤200

Original opening time

ms

≤160

3-phase synchronism

ms

≤3

Closing tripping

ms

≤10

Remark: rated control voltage can be made according to customer’s requirements.