1. General
HVJ5 1.14 kv 250AAC vacuum contactor is designed for long-distance making and breaking of circuit, frequentstarting 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 beequipped 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:10In,100 times
Breaking capacity:8In,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:8In 10S
Remark:“In” is Rated current of main circuit.