ZYJCZ33（W）7.2kV 400A Vacuum Contactor

Name

Unit

Value

Main circuit

Rated working voltage (Ue)

kV

7.2

12

Rated working current (Ie)

A

400,630

Rated frequency (fr)

Hz

50

Rated making capacity

A

10Ie

Rated breaking capacity

A

8Ie

Rated short time withstand current

A

10Ie

Rated peak withstand current

A

25Ie

Rated short circuit duration

s

4

Power frequency withstand voltage

Between phases, phase to earth

kV

32

42

Vacuum breaks

kV

32

42

Lightening impulse withstand voltage

kV

60

75

Control circuit

Rated voltage1 (Us)

V

AC or DC. 110/220

Rated power (Ps)

Electric holding

VA

≤1000/100 (absorbing/holding)

Mechanical holding

VA

≤1200/600 (closing/opening)

Auxiliary circuit

Form

3a+3b

Rated value

AC380V/5A, DC380V/1A

Control circuit, auxiliary circuit to earth power frequency withstand voltage

kV

2

Rated operating frequency

Long-term or mechanical holding type

time/h

300

Short-term

time/h

600

Mechanical endurance²

10000 times

30

Electrical endurance

10000 times

10

Mechanical characteristics

Closing time

ms

≤200

Original opening time

ms

≤160(electric holding)

≤60(mechanical holding)

3-phase synchronism

ms

≤3

Closing tripping

ms

≤10