High reliability ZN28(A)-12 indoor high voltage vacuum circuit breaker
| Min. Order: | 1 Set/Sets |
|---|---|
| Payment Terms: | L/C, D/P, D/A, T/T, WU |
| Supply Ability: | 100sets/month |
| Place of Origin: | Hubei |
Company Profile
| Location: | Wuhan, Hubei, China (Mainland) |
|---|---|
| Business Type: | Manufacturer, Distributor/Wholesaler |
Product Detail
| Means of Transport: | Ocean, Air, Land |
|---|---|
| Type: | Vacuum |
| Poles Number: | 3 |
| Brand Name: | feite |
| Production Capacity: | 100sets/month |
| Packing: | as required |
| Delivery Date: | within two weeks |
Product Description
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 | kv | 40.5 | |
| Rated lighting impulse withstand voltage(peak) | kv | 185 | |
| Rated short-time power frequency withstand voltage(1min) | kv | 95 | |
| Rated short-circuit breaking current | kA | 25 | 31.5 |
| Rated current | A | 1250/1600 | 1250/1600/2000 |
| Rated peak withstanding current | kA | 63 | 80 |
| Rated operations of short-circuit breaking current interruption | times | 20 | |
| Rated duration of short-circuit | s | 4 | |
| Rated operating sequence | 0-0.3-CO-180s -CO | ||
| Supply voltage of open and close installation | v | AC,DC220 AC,DC110 | |
| Closing time | ms | 50~100 | |
| Opening time | ms | 30~60 | |
| Rated single capacitor bank breaking current | A | 630 | |
| Rated back to back capacitor bank breaking current | A | 400 | |
| Mechanical life | times | (M1 degree)10000 | |
| Mechanical characteristics adjustment data | |||
| Rated contact stroke | mm | 22±2 | |
| Contact overtravel | mm | 8±2 | |
| Average opening speed | m/s | 1.8±0.2 | |
| Average closing speed | m/s | 0.65±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