At 20A, Littelfuse FLSR020 extends the FLSR Series range for 600V AC / 300V DC applications. Its dual-element Class RK5 fuse design is paired with 200kA AC interrupting capability. Confirm application details against the manufacturer datasheet.
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The 20A Littelfuse FLSR020 is part of the FLSR Series and is designed around a 600V AC / 300V DC rating. Its cartridge / clip format uses ferrule / blade (amp-dependent) terminals, while the listed primary interrupting capability is 200kA AC. 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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