EVS160-630 of heavy task low-voltage vacuum contactor is produced with the technology and key equipment introduced from Germany;
The series EVS 160-630 of heavy task low-voltage vacuum contactor is produced with the technology and key equipment introduced from Germany. 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 current separate into 160A, 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
Type of auxiliary
Rated Voltage
Rated thermal current
Service life
Class of application
Rated switching current
Mechanical
electrical
With screw connection
220V DC
6A
5×106
2×105
DC 11
0.4A DC
380V AC
6A
AC 11
4A AC
