Overview
The Littelfuse FLNR35 is a Class RK5 dual-element time delay fuse designed for reliable overcurrent and short-circuit protection in low-voltage power distribution circuits. Rated for 35 amps and 250 volts AC / 125 volts DC, this cartridge fuse features advanced short-circuit and overload protection through its dual-element design. This box contains 10 units, ideal for equipment replacement stockpiling and maintenance operations.
Key Features
- Dual-element design provides advanced short-circuit and overload protection
- Time-delayed performance that eliminates nuisance opening
- Rated for 200kA interrupting capacity at 250 VAC and 20kA at 125 VDC
- Current-limiting design for enhanced circuit protection
- UL Listed and CSA Certified
- Non-indicating version (visual blown-fuse indicator versions available separately)
Technical Specifications
This FLNR35 fuse is a Class RK5 dual-element time delay fuse rated for 35 amps and 250 volts AC / 125 volts DC. The fuse body is constructed from ceramic, enclosing dual-element technology that responds to both continuous overloads and momentary inrush currents without nuisance trips. Time-delay characteristics allow the fuse to be sized closer to the running ampacity of inductive loads while maintaining short-circuit protection.
Typical Applications
The FLNR35 is suitable for service entrance switches, transformers, switchboard mains and feeders, motor control central mains, and motor branch circuits. Class RK5 fuses are often used to protect circuits for service entrance switches, transformers, distribution panelboards, and fluorescent lights. These fuses are ideal for HVAC equipment, pump motors, compressors, and other general industrial machinery requiring coordinated overload and short-circuit protection.
Compatibility & Replacements
Compatible With
- 250V AC electrical distribution panels and switchboards
- 125V DC industrial control circuits
- Standard cartridge fuse holders and clips rated for Class RK5
- Low-voltage motor control centers and disconnect switches
- Distribution transformers and service entrance equipment
Replaces / Drop-In Replacement For
- Other FLNR35 fuses from previous stock or different distributors
- Generic RK5 Class 35-amp, 250V fuses of equivalent rating
- Verify compatibility with your specific equipment manufacturer or system integrator before ordering to ensure proper fuse socket/clip compatibility
Works With
- UL Class RK5 listed fuse equipment and assemblies
- NEMA electrical standards and NEC code compliance
- CSA-certified equipment in North American installations
- Standard cartridge fuse puller tools and safety disconnects
