Selection

Note:
ZN63-12 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 insulating cylinder is formed using the APG (Automatic Pressure Gelation) new process.
3.Inner skirts and reinforcing ribs are added to the insulating cylinder, which enhances the insulation level and the ability to withstand dynamicstable currents.
4.The vacuum arc extinguishing chamber is installed inside the insulating cylinder, effectively preventing damage and surface contamination caused by foreign objects, while reducing the overall size of the circuit breaker.
5.The operating mechanism adopts a spring-stored energy design, providing both electric and manual energy storage functions.
6.An advanced and rational buffer device ensures that there is no rebound during disconnection, reducing disconnection impact and vibration.
7.No adjustment needed and has minimal maintenance or maintenance-free operation.
8.The mechanical lifespan can reach up to 20,000 operations

 Technical data

The mechanical characteristic parameters of the circuit breaker are shown in Table 2

The opening and closing coil parameters are shown in Table 3

Energy storage motor parameters are shown in Table 4

Overall and mounting dimensions(mm)

Figure 1: Handcart type ZN63 (VS1) circuit breaker suitable for 800mm cabinet width overall dimensions

Figure 2: Fixed type ZN63A (VS1) circuit breaker suitable for 800mm cabinet width overall dimensions

Figure 3: Handcart type ZN63A (VS1) circuit breaker suitable for 1000mm cabinet width overall dimensions

Figure 4: Fixed type ZN63A (VS1) circuit breaker suitable for 1000mm cabinet width overall dimensions