At 3A, KLSR003 extends the Littelfuse KLSR Series rating range. The manufacturer lists 600V AC / 250V DC service together with 200kA AC breaking performance. The economical single-element RK1 construction is extremely current-limiting and suited to non-inductive loads. Use the linked Littelfuse datasheet to confirm coordination, approvals and installation details.
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The Littelfuse KLSR Series identifies KLSR003 as its 3A option. The electrical profile combines 600V AC / 250V DC operation and 200kA AC breaking performance. The economical single-element RK1 construction is extremely current-limiting and suited to non-inductive loads. For installation, the listed format is Class R; mounting is Cartridge / Clip, with ferrule / blade (amp-dependent) terminals. Published dimensions are 127.0mm length; 20.6mm max body diameter. Typical applications include Resistance Heaters, Lighting, Non-Inductive Loads, General Purpose. Check the official Littelfuse datasheet before final coordination.
