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1. General

HVJ5 1.14 kv 250A AC vacuum contactor is designed for long-distance making and breaking of circuit, frequent starting and controlling of AC motors in the power systems, with AC 50Hz-60Hz, rated voltage of 1140V and rated current to 250A. It also can be equipped with thermal relay and all kinds of protection apparatus like electromagnetic starter, especially applied to explosion-proof starter and so on.

2. Main technical parameter

Rated voltage: 1140 v

Control voltage: 36V, 110V, 220V, 380V

Rated current: 250A

Opening distance: 2±0.2 mm

Over travel: 1±0.2 mm

Final pressure: 30±3 N

Main circuit power frequency voltage withstand: 4200 V

Auxiliary circuit power frequency voltage withstand: 2500 V

Control circuit power frequency voltage withstand: 2000 V

Making capacity: 10Ie,100 times

Breaking capacity: 8Ie,25 times

Limit breaking current(A): 4500,3 times

Electricity life times AC3: 60*10⁴

Electricity life times AC4: 60*10⁴

Mechanical life times: 300*10⁴

Overload capacity: 8Ie 10S

 Remark: “Ie” is Rated current of main circuit.