Within the FLNR Series, Littelfuse lists FLNR1.25 for 1.25A service. Electrical coordination uses the 250V AC / 125V DC rating and the stated 200kA AC interrupting level. Its dual-element, current-limiting construction is designed for both overload and short-circuit protection. Package and mounting details are included below; verify final use against the official datasheet.
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The Littelfuse FLNR Series identifies FLNR1.25 as its 1.25A option. Circuit selection should account for 250V AC / 125V DC operation and the stated 200kA AC interrupting level. Its dual-element, current-limiting construction is designed for both overload and short-circuit protection. The package is Class R, using Cartridge / Clip mounting and ferrule / blade (amp-dependent) terminals. Published dimensions are 50.8mm length; 14.3mm max body diameter. Typical applications include Motor, Transformer, Service Entrance, Feeder Circuits, General Purpose. Check the official Littelfuse datasheet before final coordination.
FLNR001
1A · 250V AC / 125V DC
37421000410
10A · 250V AC
37421000430
10A · 250V AC
37418000430
8A · 250V AC
37421000000
10A · 250V AC
37416300430
6.3A · 250V AC
37418000000
8A · 250V AC
37418000410
8A · 250V AC