KLKD001 is a Littelfuse Midget / PV fuse rated 1A for 600 V AC / 600 V DC. It uses Fast-Acting operation with 100 kA AC / 50 kA DC (UL 248-14); 10 kA DC (UL 248-19) interrupting capability, suited to solar combiner boxes.
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For design-in and replacement checks, Littelfuse KLKD001 pairs a 1A rating with 600 V AC / 600 V DC in the KLKD family. The Fast-Acting Midget / PV Fuse format uses Fuse holder / cartridge mounting and Ferrule terminals, with 100 kA AC / 50 kA DC (UL 248-14); 10 kA DC (UL 248-19) fault-interruption data. Package detail: 10×38 mm midget; 10.31 mm diameter × 38.1 mm length. Typical applications include Solar combiner boxes; DC control circuits; UPS protection. Published standards/approvals reference UL 248-14; UL 248-19; UL 1741 GFDI; IEC 60269-6. Melamine body; copper-alloy caps. High-DC-rated 10×38 mm fast-acting fuse; 200 kA AC performance is Littelfuse self-certified. Verify coordination, derating and final suitability against the current Littelfuse datasheet before design-in.
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