马鞍山ZW20-12 series outdoor intelligent high-voltage vacuum circuit breaker
Product Description
Product Overview
The ZW20-12 series outdoor pole-mounted intelligent high-voltage circuit breaker adopts a miniaturized spring operating mechanism design, making it more stable and reliable. The enclosure uses sealing, explosion-proof, and insulation technology, with good overall sealing performance. This product uses vacuum arc extinguishing and SF6 gas as the insulating medium, and is a maintenance-free, high-quality pole-mounted circuit breaker product.
This product is mainly used for: switching on and off the load current and short-circuit current of the 10KV power system, suitable for substations and industrial and mining enterprises. It is equipped with an intelligent controller to protect and isolate faults in the power system; it is widely used in occasions with frequent grid operations. This circuit breaker can meet the various requirements of power automation control in conjunction with an intelligent controller and meets the corresponding technical standards required by the State Grid.
Operating Environment
◇ Ambient air temperature: -30℃~+40℃;
◇ Altitude: No more than 2000m;
◇ The surrounding air may be contaminated by dust, smoke, corrosive gases, steam, or salt spray;
◇ Wind speed does not exceed 34m/s without frequent violent vibrations;
◇ Pollution level: Level Ⅲ.
Technical Parameters
| Serial Number |
Item Name |
Unit |
Parameter |
| 1 |
Rated Voltage |
kV |
12/24 |
| 2 |
Rated Frequency |
Hz |
50 |
| 3 |
Rated Current |
A |
630/1000 |
| 4 |
Rated Short-Circuit Breaking Current |
kA |
12.5/16/20/25 |
| 5 |
Rated Peak Withstand Current (Peak) |
kA |
31.5/40/50/63 |
| 6 |
Rated Short-Time Withstand Current (4S) |
kA |
12.5/16/20/25 |
| 7 |
Rated Short-Circuit Making Current (Peak) |
kA |
31.5/40/50/63 |
| 8 |
Mechanical Life |
Times |
10000 |
| 9 |
Rated Short-Circuit Breaking Current Breaking Times |
Times |
30 |
| 10 |
1min Power Frequency Withstand Voltage (Phase-to-Phase/Phase-to-Ground/Open Circuit) |
kV |
42/49/60 |
| 11 |
Lightning Impulse Withstand Voltage Peak (Phase-to-Phase/Phase-to-Ground/Open Circuit) |
kV |
75/85/125 |
| 12 |
Secondary Circuit 1min Power Frequency Withstand Voltage |
kV |
2 |
| 13 |
Net Weight |
kg |
140 |
| 14 |
SF6 Gas Rated Gauge Pressure |
Mpa |
0 |
Dimensional Drawing
Contact Number：+8613623894894
Contact Number：+8615136360288
Email：13623894894@126.com
Address: No. 1, High-tech Road, Hebin Street Office, Yichuan County, Luoyang City, Intelligent Equipment Industrial Park
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