Rated short-time working frequency withstand voltage: 42KV
Rated short-time working frequency withstand current: 40KA
Rated short circuit withstand time: 4S
Enclosure rating: NEMA12
II. Environmental conditions
1. Ambient temperature: -10℃ ~ +40℃
2. Relative humidity: Less than 85%, non-condensation.
3. Altitude: Less than 1000m.
4. Installation site: Vertical inclination shall be less than 5 degree. No fire hazard, explossion risk, conductive dust, corrosive gas and strong vibration exist.