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∈ SGL load-isolation switch can operate under the following canditions ∈ Altitude not more than 2000m; ∈ The range of ambient temperature is fron 5→ to 40→; ∈ Relative humidity not more than 95%; ∈ The environment without any explosive medium. ∈ The environment without any rain or snow attacking. Note:If the product is expected to be used in the environment where temperature is over +40→  or below-5→~45→.users shall tell it to the manufacturer.  
  
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 AC 50 Hz, rated voltage 660V, DC rated voltage 440V, rated current 1600A. It is used for making and breaking circuit infrequently.  |    
  
  
            
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