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LITTELFUSE FLNR450 Time-Delay Blade Fuse - Time-Delay Blade Fuses
LITTELFUSETime-Delay Blade Fuses

LITTELFUSE FLNR450 Time-Delay Blade Fuse

The LITTELFUSE FLNR450 is a Class RK5, time-delay blade fuse rated at 450 A, 250 V AC and 125 V DC. Part of the FLNR Series, this non-indicating fuse is designed for overcurrent protection in industrial electrical…

SKU 3G-OTH-27438

Also listed as: FLNR 450 · FLNR-450

Brand
LITTELFUSE
Item
FLNR450 Time-Delay Blade Fuse
Part Number
FLNR450
Category
Time-Delay Blade Fuses
Available to Order
Also known as:FLNR450LITTELFUSE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

LITTELFUSE
Manufacturer Part Number
FLNR450
Series
FLNR
Type
FLNR Series, Time-Delay, 450 A, Non-Indicating
AC
250 V
DC
125 V

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LITTELFUSE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The LITTELFUSE FLNR450 is a Class RK5, time-delay blade fuse rated at 450 A, 250 V AC and 125 V DC. Part of the FLNR Series, this non-indicating fuse is designed for overcurrent protection in industrial electrical systems.

Frequently Asked Questions

What is the LITTELFUSE FLNR450 fuse used for?

The LITTELFUSE FLNR450 is a Class RK5, time-delay fuse rated 450 A at 250 V AC or 125 V DC. It protects industrial circuits, motors, and transformers from overloads and short circuits, especially where high inrush currents occur. Its non-indicating design suits applications where visual blown-fuse indication is not required.

What are the specifications of the LITTELFUSE FLNR450 fuse?

The LITTELFUSE FLNR450 is a Class RK5, time-delay blade fuse rated 450 A, 250 V AC, and 125 V DC. It is part of the FLNR Series, non-indicating, with manufacturer part number FLNR450. This fuse provides overload and short-circuit protection for industrial equipment requiring a high interrupting rating.

Where to buy the LITTELFUSE FLNR450 fuse worldwide?

You can source the LITTELFUSE FLNR450 fuse worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine LITTELFUSE components for industrial applications.

How to select the correct LITTELFUSE FLNR450 fuse for an application?

To select the LITTELFUSE FLNR450, verify your circuit's voltage (250 V AC or 125 V DC max) and continuous current (450 A). Ensure the Class RK5 time-delay characteristic matches your motor or transformer inrush. Confirm the fuse holder or disconnect switch accepts FLNR Series blade dimensions. Consult a qualified engineer for coordination studies.

Used in

Common applications for LITTELFUSE
Industrial drives — Littelfuse PSR series semiconductor fuses for overcurrent protection of variable-frequency drives and DC bus circuits.
Branch circuit protection — Littelfuse CCMR series time-delay fuses in control panels and distribution boards.
Compact equipment — Littelfuse SLC series Class G fuses in rejection-style holders for space-constrained branch circuits.
Main service entrance — Littelfuse KLPC series Class L bolt-on fuses for high-current industrial power distribution.
Motor circuits — Littelfuse FLSR series Class RK5 time-delay fuses for motor branch circuits and transformers.
Power supplies — Littelfuse 473 series axial-lead time-delay fuses for solder-in protection in power supplies and instrumentation.
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LITTELFUSE Products

3G Electric supplies LITTELFUSE time-delay blade fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Class RK5, time-delay blade fuse rated 300 A at 600 V AC or 300 V DC. Features a visual blown-fuse indicator for quick identification. Suitable for overcurrent protection in motor circuits, transformers, and branch circuits with high inrush currents
LITTELFUSE
Class RK5, time-delay blade fuse rated 300 A at 600 V AC or 300 V DC. Features a visual blown-fuse indicator for quick identification. Suitable for overcurrent protection in motor circuits, transformers, and branch circuits with high inrush currents

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