Littelfuse FLNR450 Class RK5 Fuse – 450A – 250V Time-Delay Fuse
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The Littelfuse FLNR450 is a 450 Amp Class RK5 dual-element time-delay fuse designed for industrial and commercial electrical distribution systems. Part of the FLNR series, this knife-blade fuse provides dependable overload and short-circuit protection for feeders, transformers, motors, and power distribution equipment. Its time-delay characteristics permit temporary inrush currents without nuisance opening while maintaining reliable fault interruption performance.
Electrical Rating
- Current Rating: 450 Amps
- Maximum AC Voltage: 250 VAC
- Maximum DC Voltage: 125 VDC
- Interrupting Rating:
- 300 kA AC
- 20 kA DC
Key Specifications
- Manufacturer: Littelfuse
- Catalog Number: FLNR450
- Series: FLNR
- Fuse Class: RK5
- Construction Type: Knife-Blade
- Fuse Type: Dual Element Time-Delay
- Indicating: No
Protection Characteristics
- Time-delay (slow-blow) operation
- Dual-element fuse construction
- Provides overload and short-circuit protection
- Accommodates motor starting and transformer inrush currents
- High interrupting capacity for industrial power systems
Construction Feature
- Knife-blade terminal design
- Non-indicating fuse configuration
- Industrial-grade construction for demanding applications
- Designed for reliable operation in electrical distribution equipment
Mounting & Compatibility
- Mounting Method: Fuse Block / Clip / Holder
- Compatible with standard Class RK5 fuse holders and fuse blocks
- Suitable for switchboards, panelboards, and industrial control equipment
Applications
- Motor branch circuit protection
- Transformer protection
- Industrial machinery and equipment
- Commercial electrical distribution systems
- Feeder and branch circuit applications
Product Data
- Manufacturer: Littelfuse
- Catalog Number: FLNR450
- Product Type: Time-Delay Fuse
- Series: FLNR
- Fuse Class: RK5
- Type Fuses
- Vendor Littelfuse
- Brand Littelfuse
Returns are easy
You may return items within 30 days of delivery for a refund.
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