High reliability ZN28(A)-12 indoor high voltage vacuum circuit breaker

Payment Terms: T/T,L/C,D/A,D/P,WU
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Basic Info.
  • Type: Vacuum 
  • Poles Number:
  • Brand Name: feite 
  • Place of Origin: Hubei  
  • Min.Order: 1 Set/Sets
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 100sets/month
  • Packing:as required
  • Delivery Date: within two weeks
Ambient condition
1 Ambient temperature: max +40°C min -15°C(conveyance under -30°C is allowed)
2 Altitude: ≤1000m
3 Relative humidity: daily average relative humidity: ≤95%; monthly average relative humidity≤90%; daily average saturated vapor pressure ≤2.2*10-3 MPa; monthly average value  ≤1.8*10-3 MPa
4 Earthquake intensity: ≤8 degree
5 The installation should be free from fire, explosion, severe vibration, chemical corrosion and serious pollution
Order instruction
Complete model and order quantity of the product
Rated current, rated voltage, distance of each poles
Rated short circuit breaking current, operation voltage
Required accessory and quantity
Other requirement please contact with us directly
Main Technical Data
Rated voltage                                                           kv40.5
Rated lighting impulse withstand voltage(peak)kv185
Rated short-time power frequency withstand voltage(1min)     kv95
Rated short-circuit breaking current                              kA2531.5
Rated current                                                             A1250/16001250/1600/2000
Rated peak withstanding currentkA6380
Rated operations of short-circuit breaking current interruptiontimes20
Rated duration of short-circuit                              s4
Rated operating sequence                                             0-0.3-CO-180s -CO
Supply voltage of open and close installationvAC,DC220 AC,DC110
Closing timems50~100
Opening timems30~60
Rated single capacitor bank breaking current                  A630
Rated back to back capacitor bank breaking current                  A400
Mechanical life                                           times(M1 degree)10000
Mechanical characteristics adjustment data
Rated contact stroke                                      mm22±2
Contact overtravelmm8±2
Average opening speed                                   m/s1.8±0.2
Average closing speed                                    m/s0.65±0.2
Contact bouncing duration at closing operation                ms≤3
Type of operatinf structure Special 3AV sprinf operating structure
Three-pole simultaneity                                     ms≤2
Condactive circuit resistance of each phases                                 μΩ≤45
Mechanical characteristics adjustment data
Rated contact stroke mm 11±1
Contact overtravel mm 8±2
Average opening speed m/s 1.0~1.8
Average closing speed m/s 0.6~1.1 0.8~1.3 0.8~1.3
Contact bouncing duration at closing operation ms ≤2
Core distance between phases mm 210,230,250,275
Three-pole simultaneity ms ≤2
Condactive circuit resistance of each phases μΩ <40

Send message to this supplier
Ms. Dawn feng (salesman)
Tel: 86-27-84799945
Mobile: 13477541427
Enter between 20 to 3,000 chatacters.
Contact Method
Wuhan Feite Electric Co.,Ltd
NO.113,Tian e hu Avenue Caidian District, Wuhan, Hubei, China (Mainland) / 430113
Fax: 86-27-69162588
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