Executive Standards:

1.IEC60439-3:2001/GB7251.3-2006:LV switchgear&controlgear assemblies part 3

2.IEC61439-1:2011/GB7251.1-2006:LV switchgear&controlgear assemblies part 1

3.IEC62208:2002/GB/T20641-2006:Empty enclosure for LV&controlgear assemblies

4.IEC60529:2001/GB4208-2008:Degree of protection provided by enclosure(IP code)

Ambient Condition:

1. Ambient Temperature: -25℃ ~ +50℃

2. Relative Humidity: Less than 80% in 40℃,higher humidity is allowed for low temperature.

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