Description
The Littelfuse FLSR.800 is a precision-engineered 0.8-amp, 600-volt time-delay Class RK5 fuse built to deliver consistent, high-performance overcurrent protection across demanding industrial and commercial electrical applications. Its dual-element, current-limiting construction intelligently tolerates temporary inrush currents — eliminating nuisance trips — while responding rapidly to genuine overload and short-circuit conditions that could damage equipment or compromise safety.
The compact cylindrical cartridge form factor ensures secure, reliable installation in standard fuse holders, panelboards, and switchgear. With an interrupting capacity of up to 200kA AC, the FLSR.800 is well-suited for protecting control circuits, transformers, motors, and other sensitive low-current equipment where precision and dependability are critical.
Key Features
- 0.8A time-delay (slow-blow) protection for inrush-tolerant applications
- 600V AC / 300V DC voltage rating for versatile system compatibility
- Class RK5 dual-element, current-limiting design for superior protection coordination
- Withstands temporary inrush currents to eliminate nuisance tripping
- High interrupting capacity up to 200kA AC for enhanced industrial safety
- Cartridge-style construction for secure, straightforward mounting in standard fuse holders
- Ideal for control circuits, transformers, motors, and general-purpose low-current protection
- Reliable overload and short-circuit response to safeguard equipment and personnel







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