SPFI020 is a Littelfuse PV / gPV fuse rated 20A for 1000 V DC. It uses PV Full-Range operation with 20 kA DC interrupting capability, suited to photovoltaic wire harnesses.
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Designed for equipment protection, Littelfuse SPFI020 matches a 20A rating with 1000 V DC in the SPFI family. The In-Line Solar PV Fuse format uses In-line wire harness mounting and Crimp / overmold wire-harness ends terminals, with 20 kA DC fault-interruption data. Package detail: In-line 10 mm class solar fuse; 63.5 mm overall length; 10.31 mm fuse body diameter. Typical applications include Photovoltaic wire harnesses. Published standards/approvals reference UL 248-1; UL 248-19; IEC 60269-6 (electrical). No separate fuse holder required; one-piece cap design supports crimping and overmolded or heat-shrink insulated harness assemblies. Verify coordination, derating and final suitability against the current Littelfuse datasheet before design-in.
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