Within Littelfuse’s FLSR Series, FLSR17.5 is specified for 17.5A service at 600V AC / 300V DC. It combines dual-element Class RK5 fuse performance with a documented 200kA AC interrupting rating. Confirm application details against the manufacturer datasheet.
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The FLSR Series catalog number FLSR17.5 delivers a 17.5A rating and 600V AC / 300V DC operating capability. With a Class R form factor, the part is intended for cartridge / clip mounting and carries a 200kA AC primary rating. Published dimensions for this rating/configuration are 127.0mm length; 20.7mm max body diameter. Its dual-element time-delay behavior is intended to ride through normal motor inrush while protecting against overloads and short circuits. Typical uses cover Motor, Transformer, Service Entrance, Feeder Circuits, general-purpose circuits. Check UL 248-12 and the manufacturer datasheet before final selection.
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