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CKJ50 1000A, 1250A Vacuum Contactors

CKJ50-1000A/1140V and CKJ50-1250A/1140V series AC Vacuum Contactor is applicable for AC 50HZ power system of rated voltage 1.14KV and rated current up to 1000 A and 1250A to open and close circuit, start and control AC motor frequently. It is suitable for composed magnetic starter with various protective devices and compose a explosion-proof magnetic starter and large mineral Switchgear.


Type

Unit

CKJ50-1000A/1140V

CKJ50-1250A/1140V

Rated voltage

KV

1.14

1.14

Rated current

A

1000

1250

Making capacity

A

5000(100 times)

Breaking capacity

A

4500(10 times)

Limit breaking capacity

A

5000(3 times)

Electrical life times(AC3)

times

600,000

Electrical life times(AC4)

times

6,000

Mechanical life times

times

1,000,000

Rated operating frequency (AC3)

times /h

600

Rated operating frequency (AC4)

times /h

120

Short-time operating frequency(20s)

times /h

1000

Contacts separation

mm

2.8±0.1

Over travel

mm

1.0±0.1






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