Product Information
‑20‑
1.3.2 Technical Specifications
Table 1–9 General specifications
Item Specifications
Environment Operating location Indoors
Operating ambient temperature ‑20℃ to +60℃
Temperature change less than 0.5 ℃/min
For applications with normal load: Derating of rated current by
2.5% per 1℃ rise when above 50℃; Maximum temperature:
60℃
For overload applications: Derating of rated current by 2.5% per
1℃ rise when above 40℃; Maximum temperature: 60℃
Storage temperature ‑40℃ to +70℃
Transportation temperature ‑40℃ to +70℃
Relative humidity in work
environment
Relative humidity range: 5% to 95%
Standard models cannot be used in environments with
corrosive gases. Select models with corrosion‑resistant coated
housing for such environments.
Relative humidity for storage 5% to 95%
Relative humidity for
transportation
Lower than 95% at +40℃
Altitude The maximum altitude of the star power grid is 4000 m (13123
ft), and the maximum altitude of delta power grid is 2000 m
(6562 ft).
De‑rated by 1% per 100 m increase when the altitude is above
1000 m.
Vibration When transported in transport packages: conforming to EN
60721‑3‑2, Class 2M3
When package removed: conforming to ISTA 1H
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