LITTELFUSE FLSR400 Fuse,Class RK5,400A,FLSR Series 486L61

Fuse, 400 A, 600V AC, 300V DC, Class RK5, FLSR Series, Nonindicating, Time Delay, Body Style Blade, Fits Fuse Block Style Rejection, Interrupt Rating 200kA at 600V AC, 20kA at 300V DC, Fuse Size 11-5/8 in L x 2-19/32 in dia, Length 11 5/8 in, Diameter 2 19/32 in, Equivalent Brand and Series Bussmann FRS-R, Edison ECSR, Littelfuse FLSR, Mersen TRS-R, Equivalent Series ECSR, FLSR, FRS-R, TRS-R, Compatible Fuse Block Series LFR, Body Material Fiberglass, Dual Element These 600VAC UL Class RK5 fuses are time delay and nonindicating. They tolerate temporary inrush currents without opening, which prevents nuisance-blowing from motor and equipment startups. Also called slow-blow Class RK5 fuses, these 200kA IR fuses open to disconnect an electrical circuit when exposed to sustained loads and shor.

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July 4, 2026

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