Littelfuse rates KLNR020 at 20A as part of the KLNR Series. Its key electrical ratings are 250V AC / 125V DC with 200kA AC breaking capability. 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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For 20A service, KLNR020 is a listed member of the Littelfuse KLNR Series. The device is rated for 250V AC / 125V DC and carries a published 200kA AC breaking capacity. The economical single-element RK1 construction is extremely current-limiting and suited to non-inductive loads. Mechanical selection uses a Class R format with Cartridge / Clip installation and ferrule / blade (amp-dependent) termination. Published dimensions are 50.8mm length; 14.3mm max body diameter. Typical applications include Resistance Heaters, Lighting, Non-Inductive Loads, General Purpose. Check the official Littelfuse datasheet before final coordination.
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