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The Littelfuse Inc. 03452LS1HX020 is a fuse holder knob from the 345 Series, designed for shock-safe panel mounting applications. This knob style features a screwdriver slot for easy operation and fuse extraction. It is compatible with various fuse sizes including 3AB, 3AG, 5x20mm, and 2AG, depending on the selected knob.
The fuseholder body is constructed from black glass-filled thermoplastic (UL 94V0), while the knob is made from glass-filled thermoplastic (UL94 V-0) available in grey, blue, or black. The terminals are tin-plated copper alloy, with options for dual-purpose soldering or NEMA quick connect, and 1/4” NEMA/DIN quick connect.
This component is designed to eliminate the possibility of electrical shock, adhering to IEC standards 60127-6. It offers an anti-tease feature to prevent accidental circuit interruption. The operating temperature range is -40°C to +85°C. Ingress protection is rated at IP40, protecting against solid objects greater than 1mm, and IP52 for protection against dust and dripping water when tilted up to 15°.
The insulation resistance is 10,000 megohm minimum at 500 VDC.
The contact resistance is less than 0.005 ohm average at currents up to 1 ampere.
The operating temperature range is -40°C to +85°C.
The standard version is IP40; versions ending with 'NP' are IP52.
It is compatible with 3AB, 3AG, 5x20mm, and 2AG fuses.
It accommodates panel thicknesses from 0.012" to 0.360" depending on mounting style (low/high profile, quick mount, rear mount).
The maximum mounting torque is 15 in-lb.