- Electronic & Instrument Enclosures[10]
- Power Distribution Equipment[10]
- Terminal Blocks[1]
- Electrical Plugs & Sockets[7]
- Push Button Switches[7]
- Circuit Breakers[4]
- Fuses[2]
- Wall Switches[1]
- Electric Heaters[3]
- Home Appliances Stocks[2]
- Fans[4]
- Industrial Metal Detectors[1]
- Ventilation Fan Parts[1]
- Other Industrial Filtration Equipment[1]
- Ventilation Fans[1]
- Cable Glands[3]
- Cable Ties[1]
- Electrical Ceramics[2]
- Switching Power Supply[5]
- Contact Person : Mr. Wu Fandy
- Company Name : Tengfei Electric Co., Ltd.
- Tel : 86-577-6213 5980
- Fax : 0577-62788201
- Address : Zhejiang,Wenzhou,17# Tengfei Rd, Dongfeng Industrial Zone, Liushi Town, Yueqing City, Wenzhou, Zhejiang, china
- Country/Region : China
- Zip : 325604
ZN12-12 Indoor high voltage vacuum circuit breaker
ZN12-12 Series Indoor high voltage vacuum circuit breaker
Ambient conditions
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.
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
ZN12-12 Indoor high voltage vacuum circuit breaker
