VS1-10 vacuum circuit breaker protection switch VS1-12 / 630A (ZN63) indoors

AC high voltage vacuum circuit breakers ZN63A (VS1) -12 type indoor AC high voltage vacuum circuit breaker 1. General within ZN63A (VS1) -type indoor hereinafter referred to as the circuit breaker is a three-phase AC rated voltage indoor switchgear, for industrial and mining enterprises, power plants and substations for control and protection of electrical installations to use, and is suitable for frequent operation place. Circuit breaker in line "AC high voltage circuit breakers" 855-1996 "within 3.6-40.5kV indoor AC high voltage vacuum circuit breakers", DL403-91, "AC high voltage circuit breaker ordering technology within 10-35KV household" standards and meet IEC56 (87 publications) of the relevant requirements. Circuit breaker operating mechanism and the circuit breaker body-in-one design, either as a fixed installation unit can also be equipped with a special promotion mechanism, composed handcart unit use. 2. Model and meaning 3. Conditions 3.1 Ambient temperature not higher than + 40 ℃, not lower than -15 ℃ (to allow storage at -30 ℃ when); 3.2 altitude less than 1000m; 3.2 relative humidity: daily average not more than 95%, on average less than 90% saturated vapor pressure on average less than 2.2 × 10 Mpa, average less than 1.8 × 10 Mpa; 3.4 earthquake heat does not exceed 8 degrees; 3.5 no fire, explosion, serious pollution, chemical corrosion and severe vibration. 4. Technical parameters 4.1 Main specifications and technical parameters