EVS160-630 Heavy-task Low-voltage Vacuum Contactor

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

Technical data for auxiliary switches: 

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

 

EVS160-630 Heavy-task Low-voltage Vacuum Contactor