160A 250A 400A 630A 1140V Low Voltage Vacuum Contactor Unit

EVS160-630 Heavy task Low voltage Vacuum Contactor

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

Certifications

Founded in 1958, Guoguang Electric Co., Ltd. Chengdu. is one of the Soviet Union's aids 156 key projects during the 1^st Five-Year plan, and also a comprehensive factory dedicated in manufacturing of microwave electron. In October of 2000, the factory is reorganized into a share-holding corporation that set foot in science research, manufacturing and trading. The headquarter and the manufacturing base are situated in the state-level economic and technological development zone of Longquanyi District, Chengdu city. The manufacturing base area is 133,340m² and the total area of structure is 80,000m². The total asset of the company is nearly 900 million RMB and net asset is 600 million RMB. Over 1100 staff members have been employed and over 30% of them are medium and high ranking technicians.

The main business scope of the company is: Research and production for all kinds of microwave electron vacuum parts, solid microwave devices and microwave encapsulation, vacuum contactor and breaker, vacuum chamber, switch gear, aircraft kitchen appliance(including train meal-trolley) , exhaust carts, all kinds of non-standard machinery and electrical equipment, vacuum gauge, vacuum measurement instruments, appliance of microwave energy, microwave source, medical laser appliances, etc. The products have been sold as far as overseas market and achieved great contributions for the national defense and scientific research work.

The company has been attaching much importance to the development of technology and equipment renewal since its establishment. To guarantee the production, the company has introduced much advanced equipment from U.S., France, Austria, Italy, Germany, etc. Our company has a complete internal matching capacity, besides the developing and researching of components, devices and overall unit, we can do raw material analysis, precision component processing, ceramic manufacturing and sealing, cathode manufacturing, surface treating, reliability and environment test.