Model Number: ZN28-12 series Brand Name: GAOYAN BRAND Key Specifications/Special Features: ZN28-12 Series 12KV indoor AC Medium-voltage Vacuum Circuit Breakers1. General introduction: As indoor AC medium voltage apparatus for rated voltage of 12kv and three-phase 50 Hz, the ZN28-12 series vacuum circuit breaker is mainly equipped inside the mental-enclosed switchgear to product and control the electrical equipment in mineral and industrial enterprises, power plant and substation. It also applies to the places with frequent operation.2. Normal service conditions: Suitable Altitude: 1000m-4000mAmbient Temperature: -10℃～+40℃.Altitude: 2000m and below.
Relative Humidity: Daily average≤95%, Daily average of water vapor pressure ≤ 2.2Kpa;
Month average: 90%, Monthly average of water vapor pressure ≤1.8Kpa.
Earthquake intensity: ≤8 degree
Application occasions should be free from corrosive, inflammables and vapor.
3. Packing & shipping
Plastic bag with Foam for inner, cartons for outer.
Or we can package as customer's requirements.
4. Why us
1>Advanced technology
High quality—WITHOUT ANY maintenance.
Professional sales team—we promise you the best service, we promise to provide you the most suitable plan, we promise you the top quality and in time delivery.
2>Guarantee
12 Months (Any quality issue, free of charge)
3>Delivery
1)Packing: standard wooden outside
2)Delivery: 25 working days after we get the deposit.
3)Form A or C/O: FREE for you
4>About payment:
30% deposit, 70% before shipping.