EVS160-630 Heavy-task Low-voltage Vacuum Contactor

The series EVS 160-630 of heavy task low-voltage vacuum contactor is produced with the technology and key equipment introduced fromGermany. This product has met IEC, VDE technical standards. This series of vacuum contactors have such advantages as high capabilities of switch-on and switch-off, long electrical and mechanical lifetimes and high operating reliability under the bad conditions. The EVS vacuum contactor is used for low voltage DC electromagnetical structure, and can be assembled into 1, 2, 3...to n poles. They are especially suitable for being used in the basic industries, metallurgical, petrolic, chemical industries, mine and wharf. Its applicable to the power system with 50Hz alternating current, rated operating voltage up to 1140V, rated operating currentseparate into160A, 250A, 400A and 630A to switch-on or off the circuit at a short or long-distance, to start frequently and control alternating motor under the heavy task and to form electromagnetic starter with other kinds of protective devices. Main technical data: Item Type EVS160 EVS250 EVS400 EVS630 Rated operating voltage Ue 1140V 1140V 1140V 1140V Rated operating current Ie 160A 250A 400A 630A Rated frequency 50Hz 50Hz 50Hz 50Hz Rated turn-on capacity Cosφ=0.35 1920A 3000A 4800A 7560A Rated turn-off capacity Cosφ=0.35 1600A 2500A 4000A 6300A Max. allowable power of motor 660V 50Hz 140KW 220KW 350KW 560KW Close time 30ms 30ms 30ms 30ms Release time 20ms 20ms 15ms 15ms Mechanical lifetimeTimes 5×106 Max. operating frequencyTimes/h 3000 Electrical lifetime Ac2 Ac3 Ac4 3 ×106 5 ×106 0.12 ×106 2 ×106 5 ×106 0.08 ×106 2 ×106 5×106 0.08 ×106 1 ×106 3 ×106 0.06 ×106