ZN85-40.5 (3AV3) Indoor AC HV Vacuum Circuit Breaker three-phase AC 50Hz, 40.5kV power systems ke liye applicable hai. Yeh industrial and mining enterprises, power plants aur transformer substations me equipment ko protect aur control karne ke liye use hota hai. Yeh breaker un locations ke liye bhi suitable hai jahan frequent operations required hote hain.

Circuit breaker vacuum interrupter (upper part) aur mechanism (lower part) structure adopt karta hai, jo adjustment ke liye convenient hai. Isme compound insulated structure (air + organic material) ka compact aur lightweight design diya gaya hai. Yeh SIEMENS-made vacuum interrupter ya ZMD vacuum interrupter ke saath match ho sakta hai, jo axial magnetic field arc extinguishing adopt karta hai, low current chopping aur excellent asymmetry breaking performance provide karta hai.

Spring operating mechanism simple design ka hai aur 10,000 operations tak maintenance-free performance deta hai. Leading screw driving mechanism smooth, labor-saving aur self-locking capability ke saath aata hai, aur overrunning clutch se equipped hai.