• 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

Electrical Vacuum Interrupter Integrity Test 20 Years Shelf Life

Place of Origin Sichuan, China (Mainland)
Model Number TJC20-7.2/630
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 7.2kV Rated Current 630A
Rated Frequency 50/60Hz Net Weight 1.7kg
Shelf Life 20 Years
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Product Description



1 Rated Voltage kV 7.2
2 Lightning Impulse Withstand Voltage (Peak) kV 60
3 Short-time (1min) Power-frequency Withstand Voltage kV 32
4 Rated Frequency Hz 50/60
5 Rated Current A 630
6 Rated Short-time Withstand Current kA 6.3
7 Rated duration of Short-circuit s 4
8 Rated Breaking Current A 5040
9 Limiting Breaking Current kA 6.3
10 Rated Making Current kA  
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 3.0*104
16 Clearance Between Open Contacts mm 4.5~6
17 Contact Closing Force Due to Bellows and Atmosphere N 70±10
18 Counter force of Contacts at Full Stroke N 120±10
19 Circuit Resistance at Min. Rated Contact Force μΩ ≤ 160
20 Contact Limit Erosion mm 1.5
21 Mass of Moving Parts kg 0.42
22 Internal Gas Pressure Pa ≤ 1.33*10-3
23 Shelf Life Year 20



Electrical Vacuum Interrupter Integrity Test 20 Years Shelf Life 0   

About Us :


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.