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LITTELFUSE Fuse: Class RK5, FLNR-ID Series, Time-Delay, 450 A, 250 V AC, 125 V DC - Time-Delay Blade Fuses
LITTELFUSETime-Delay Blade Fuses

LITTELFUSE Fuse: Class RK5, FLNR-ID Series, Time-Delay, 450 A, 250 V AC, 125 V DC

The LITTELFUSE FLNR-ID Series Class RK5 Time-Delay Blade Fuse (MPN FLNR450ID) is a 450 A, 250 V AC / 125 V DC indicating fuse. 3G Electric interprets your demand for this specific overcurrent protection component…

SKU 3G-OTH-27537

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLNR-ID Series, Time-Delay, 450 A, 250 V AC, 125 V DC
Category
Time-Delay Blade Fuses
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

LITTELFUSE
Manufacturer Part Number
FLNR450ID
Series
FLNR-ID
Type
FLNR-ID Series, Time-Delay, 450 A, Indicating
AC
250 V
DC
125 V

Technical Documents

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

Product Description

The LITTELFUSE FLNR-ID Series Class RK5 Time-Delay Blade Fuse (MPN FLNR450ID) is a 450 A, 250 V AC / 125 V DC indicating fuse. 3G Electric interprets your demand for this specific overcurrent protection component, sources it as an authorised distributor, and supports your application with specialist expertise across 14 industrial departments — including electrical, combustion, and controls.

Frequently Asked Questions

What is the LITTELFUSE FLNR450ID fuse used for?

The LITTELFUSE FLNR450ID is a Class RK5 time-delay fuse rated 450 A at 250 V AC or 125 V DC. It is used for motor and transformer protection in industrial power distribution, providing overload and short-circuit protection with an indicating feature for blown-fuse detection.

What are the specifications of the LITTELFUSE FLNR450ID?

The LITTELFUSE FLNR450ID is a Class RK5 time-delay fuse from the FLNR-ID series. It is rated 450 A, 250 V AC, and 125 V DC. The indicating feature shows when the fuse has opened. The manufacturer part number is FLNR450ID.

Where to buy the LITTELFUSE FLNR450ID worldwide?

You can source the LITTELFUSE FLNR450ID through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to select the correct LITTELFUSE FLNR450ID fuse?

To select the correct LITTELFUSE FLNR450ID fuse, verify the system voltage (250 V AC or 125 V DC) and continuous current (450 A). Ensure the Class RK5 time-delay characteristic matches your motor or transformer inrush requirements. The FLNR-ID series includes a visual indicator for blown-fuse identification.

Used in

Common applications for LITTELFUSE
Power electronics protection — Littelfuse PSR Series semiconductor fuses for IGBT and diode protection in variable frequency drives.
Solar photovoltaic systems — Littelfuse SPF Series fast-acting fuses for string overcurrent protection in PV arrays.
Automotive electrical systems — Littelfuse MIDI® 498 Series bolt-on fuses for battery and alternator protection in vehicles.
Industrial control panels — Littelfuse KLKD Series midget fuses for branch circuit protection in control transformers and relays.
Motor control centers — Littelfuse BLF Series fast-acting fuses for short-circuit protection of motor starters and contactors.

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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