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About the Fuse / MCB / MCCB Sizing
Select correct fuse rating, MCB curve, and MCCB interrupt capacity for DC strings, combiners, and AC outputs
What you can calculate
- gPV string fuses
- MCB B/C/D curve
- DC-rated MCCB
- Interrupt kA
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3-5 min
DC Cable Sizing
Size DC string and main cables per IEC 60364-7-712 & CEA standards with temperature and installation derating
Open 3-5 min
AC Cable Sizing
Size AC cables from inverter to grid per IS 732 & IEC 60364 with full load current derating and voltage drop
Open 2-4 min
Voltage Drop
Calculate voltage drop % for DC and AC circuits and verify compliance with IEC & IS limits across the system
Open 3-5 min
Short Circuit Current
Calculate maximum DC and AC short-circuit current at each system point for protection device sizing
Open 3-5 min
Combiner Box (AJB) Sizing
Size Array Junction Boxes with string count, fuse ratings, SPD specification, and busbar current capacity
Open 3-5 min
DCDB Sizing
Size DC Distribution Boards with main MCCB, busbar, SPD, monitoring, and enclosure IP rating selection
Open