1.General
HVJ5 1.14 kv 250A AC vacuum contactor from JUCRO electric 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.
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