● ZN63(VS1)-12P indoor AC MV vacuum circuit breaker is a three-phase AC 50HZ indoor switchgear with a rated voltage of 12KV. It can be used in industrial and mining enterprises, power plants and substations for the control and protection of electrical facilities, and is suitable for places with frequent operations.
● Standard: IEC 62271-100.

Selection

Note: ZN63(VS1)-12P adopts a double spring integrated mechanism by default. If a single spring modular mechanism is required, a single spring needs to be added to the model backup;

Operating conditions

1. The ambient temperature is not higher than +40°C and not lower than -15°C (storage and transportation at -30°C are allowed);

2. The altitude is not higher than 1000m;

3.  Relative temperature: the daily average is not more than 95%, and the monthly average The value is not more than 90%, the daily average value of saturated vapor  pressure  is  not  more  than  2.2×10-’MPa,  and  the  monthly  average value  is  not  more  than 1.8×10MPa;

4. The seismic intensity does not exceed 8 degrees;

5. There is no fire, explosion hazard, serious pollution, Places subject to chemical corrosion and severe vibration.

Features

1. The arc extinguishing chamber and operating mechanism of the circuit breaker are arranged in a front-to-back configuration and connected as a whole through a transmission mechanism.

2. The hermetically sealed pole adopts epoxy resin insulation material to seal the vacuum arc extinguishing chamber and the main circuit conductive components as a whole.

3. The  vacuum  arc   extinguishing  chamber   utilizes  a   hermetically   sealed  pole,  enhancing  the   product’s  ability  to  withstand environmental pollution.

4. The operating mechanism adopts a spring-stored energy design, providing both electric and manual energy storage functions.

5.  It features an advanced and rational buffer device, ensuring no rebound during disconnection and reducing disconnection impact and vibration.

6.  It has advantages such as simple assembly, high insulation strength, high reliability, good product consistency, and maintenance- free operation.

7. The mechanical lifespan can reach up to 20,000 operations.

Technical data 

Technical datas are shown in Table 1

The mechanical characteristic parameters are shown in Table 2

Opening and closing coil parameters are shown in Table 3

Energy storage motor parameters are shown in Table 4

Overall and mounting dimensions(mm)

Handcart type outline size drawing (suitable for 800mm cabinet)