Push Button Box NPH1, Chint

1. General
Electric ratings: AC50/60Hz, AC415V/DC250V; Degree of protection: IP65; Standard: IEC/EN60947-5-1
2. Operating conditions
Ambient temperature is -5℃~+40℃, the average temperature during 24 hours couldn’t exceed +35℃.
Altitude: ≤2000m.
Atmosphere condition: Relative humidity of the atmosphere couldn’t exceed 50% when the highest temperature is +40℃; much higher relative humidity is allowable under the condition of lower temperature, for example, when the temperature reaches +20℃, the relative humidity is up to 90%. As for dews, which contingently appear due to change of temperature, special steps should be taken.
Pollution grade: 3
Installation category: Ⅱ
Tightening torque is 0.8~1.2N·m for the cable terminals. Cross section of the cable connection is 0.5~2.5mm2, and 8mm conductor length is needed.