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Home > Electrical & Electronics > Breaker & Protector > Circuit Breaker > ZN28G/ZN28A-12 Series 12kv 630a Side Mounted Indoor High Voltage Vacuum Circuit Breaker
ZN28G/ZN28A-12 Series 12kv 630a Side Mounted Indoor High Voltage Vacuum Circuit Breaker
US$ 3,000 - 6,000
MOQ: 1 Set
Key Specifications
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Place of Origin:
Zhejiang, China
Model Number:
ZN28G/ZN28A-12
Type:
Vacuum
Payment & Shipping
Payment Methods:
Port of Shipment:
WENZHOU/NINGBO
Delivery Detail:
Delivery time depends on order quantity.
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Place of Origin
Zhejiang, China
Model Number
ZN28G/ZN28A-12
Type
Vacuum
Poles Number
3
AMBIENT CONDITION
1. the ambient temperature:not higher than+40℃,not less than 10℃
2.the altitude:≤1000M
3.relative humidity: daily average value is not greater than 95%, monthly average is not greater than 90%;air relative humidity on average less than 2210-3Mpa, on average less than 1.810-3Mpa
4.the surrounding air is not corrosive and flammable gas, steam and other significant pollution
5.earthquake intensity:≤8 degree
TECHNICAL SPECIFICATION
| Item | Units | Parameters | ||
| Rated voltage | KV | 12 | ||
| Rated current | A | 630-3150 | ||
| Rated short-citcuit breaking current | KA | 20 | 31.5 | 40 |
| Rated short-circuit closing current | KA | 50 | 80 | 100 |
| Rated dynamic steady electric current(peak) | KA | 50 | 80 | 100 |
| Rated thermal stability current(RMS) | KA | 20 | 31.5 | 40 |
| Rated thermal stability time | s | 4 | ||
| the breaking times of rated short circuit breaking current | Times | 30(50) | ||
| Rated operating sequence | 0-0.3s-CO-180s-CO | |||
| a minute power frequency withstand voltage(RMS) | KV | the phase 42, section 48 | ||
| lighting shock pressure | KV | the phase 75, section 85 | ||
| Mechanical life | Times | 20000 | ||
| Rated storage and operation voltage | times | 10000 | ||
| Note: 20KA, 31.5KA t=0.3s t1=180s 40KA t=180s t1=180s | ||||
OVERALL DIMENSION
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Business Type
Manufacturer, Trading Company
Year Established
1999
Factory Size
1,000-3,000 square meters
Total Employees
51 - 100 People
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