• Rose
    The delivery time of CW Magnetron is quick, and very important: the products always sent match the order. I trust them because i've never been disapointed with them.
  • Edward Deanda
    Please develop more Vacuum Contactor Unit and with better prices, so we can sell your products to more clients and gain larger markets. Thanks you
Contact Person : Dai
Phone Number : 15008451881

Secondary Sealing Vacuum Interrupter Switch Exhaust For High Voltage Power Switch

Place of Origin Sichuan, China (Mainland)
Model Number TJC20-12/400
Minimum Order Quantity Negotiation
Price Negotiation
Packaging Details Export packing-layer board box/carton box
Delivery Time within 10 working days
Payment Terms T/T
Supply Ability 200 Pieces per month
Product Details
Rated Voltage 12kV Rated Current 400A
Rated Frequency 50/60Hz Net Weight 1.7kg
Shelf Life 20 Years
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Product Description



1 Rated Voltage kV 12
2 Lightning Impulse Withstand Voltage (Peak) kV 75
3 Short-time (1min) Power-frequency Withstand Voltage kV 42
4 Rated Frequency Hz 50/60
5 Rated Current A 400
6 Rated Short-time Withstand Current kA 4
7 Rated duration of Short-circuit s 4
8 Rated Breaking Current A  
9 Limiting Breaking Current kA 4
10 Rated Making Current kA 4
11 Rated Operating Frequency AC-3 Operations/h  
AC-4 300
12 Short-time Operating Frequency Operations/h  
13 Utilization Category AC  
14 Electrical Endurance AC-3 Operations 2.5*105
AC-4 10*104
15 Mechanical Endurance Operations 3*105
16 Clearance Between Open Contacts mm 5.5~7
17 Contact Closing Force Due to Bellows and Atmosphere N 70±10
18 Counter force of Contacts at Full Stroke N 110±10
19 Circuit Resistance at Min. Rated Contact Force μΩ ≤ 160
20 Contact Limit Erosion mm 1.5
21 Mass of Moving Parts kg 0.37
22 Internal Gas Pressure Pa ≤ 1.33*10-3
23 Shelf Life Year 20



Secondary Sealing Vacuum Interrupter Switch Exhaust For High Voltage Power Switch 0   


About Us :


Founded in 1958, Guoguang Electric Co., Ltd. Chengdu. is one of the Soviet Union's aids 156 key projects during the 1stFive-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.