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CHECK IF STRING FUSES ARE REQUIRED AND THEIR SIZE

*This calculator is a quick reference. Its not intended as a replacement of AS5033

 

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Note: All terminologies mentioned below means the same rating listed on the back of the panel or the datasheet of the panel. This is the maximum size of string protection device in Amps.

Maximum series fuse rating or Module Reverse Current ratings or Maximum Overcurrent protection rating: IMod Reverse
Required if more than one string and if : ISC_Mod x (no. of strings – 1) > IMod_Reverse
If Required, size of the string overcurrent protection: (AS5033_3.5.5.1) ITrip > 1.5 x ISC_Mod And
ITrip < 2.4 x ISC_Mod And
ITrip ≤ IMod_Reverse

CHECK

Maximum series fuse rating of the Panel :  
?
The value must be betweeen 10 to 50 (inclusive).
Number of strings in Parallel:  
?
The value must be greater than 0.
Panel Short circuit current:  
?
The value must be greater than 0

Result:

String fuse is:
String fuse size must be:


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