Re: DERATING OF SMDB- temp test as per IEC61439

Home Electrical Engineering Forum General Discussion DERATING OF SMDB- temp test as per IEC61439 Re: DERATING OF SMDB- temp test as per IEC61439

#12347
Abhilash
Participant

Abhilash said:

Dear All,

Kindly support me in the below matter for Type Test  IEC61439

I want to type test (ASTA) 250A SMDB with 4 outoings as per IEC 61439. Our enclosure is IP54 . I came to know that the Incomer MCCB 250A will not withstand the fulload current while temperature rise test since the enclosure is IP54 . 

If any of you have knowledge in this topic  kindly help me friends.

Abhilash

Dubai

Dear All,

Anybody can help