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Current ratings: Common values are 10A, 15A, 20A, 25A, and 30A, matching typical PV string and module requirements.
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Voltage rating: Most models are rated up to 1000V DC, compatible with modern PV arrays and combiner boxes.
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Type: Cylindrical/cartridge fuses are prevalent for PV use (commonly 10x38mm size, suitable for fuse holders).
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Breaking capacity: High interrupt rating to handle sizable DC fault currents.
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Compliance: Adheres to IS/IEC 60269-6 for photovoltaic fuse-links.
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Fuse rating should typically be 1.25x the maximum short-circuit current of the PV string, but not exceeding the module's maximum series fuse rating (often 25A).
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Each PV string requires a separate fuse for positive and negative sides to ensure safety and effective fault isolation.
