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LITTELFUSE FLNR045ID Class RK5 Time-Delay Indicating Fuse - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE FLNR045ID Class RK5 Time-Delay Indicating Fuse

The LITTELFUSE FLNR-ID Series FLNR045ID is a Class RK5, time-delay cylindrical fuse rated at 45 A, 250 V AC and 125 V DC, with an indicating feature. 3G Electric interprets your demand for overcurrent protection and…

SKU 3G-OTH-27971

Brand
LITTELFUSE
Item
FLNR045ID Class RK5 Time-Delay Indicating Fuse
Category
Time-Delay Cylindrical 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
FLNR045ID
Series
FLNR-ID
Type
FLNR-ID Series, Time-Delay, 45 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 FLNR045ID is a Class RK5, time-delay cylindrical fuse rated at 45 A, 250 V AC and 125 V DC, with an indicating feature. 3G Electric interprets your demand for overcurrent protection and sources this genuine industrial fuse across 14 departments — with specialist depth in electrical components as an authorised distributor.

Frequently Asked Questions

What is the LITTELFUSE FLNR045ID fuse used for?

The LITTELFUSE FLNR045ID is a Class RK5 time-delay fuse rated 45 A, 250 V AC / 125 V DC. It protects motor circuits, transformers, and other inductive loads from overcurrent and short circuits. The indicating feature shows when the fuse has opened, simplifying troubleshooting in industrial control panels and distribution equipment.

What are the specifications of the LITTELFUSE FLNR045ID?

The LITTELFUSE FLNR045ID is a Class RK5, time-delay fuse from the FLNR-ID series. It is rated 45 A, 250 V AC and 125 V DC. The indicating function provides visual confirmation of a blown fuse. The manufacturer part number is FLNR045ID, and it is designed for overcurrent protection in industrial circuits.

Where to buy the LITTELFUSE FLNR045ID worldwide?

You can source the LITTELFUSE FLNR045ID 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; we provide competitive pricing and reliable sourcing for this and other LITTELFUSE fuse models.

How to select the correct LITTELFUSE FLNR-ID fuse for an application?

To select the correct LITTELFUSE FLNR-ID fuse, match the voltage rating (250 V AC or 125 V DC) and current rating (45 A for the FLNR045ID) to your circuit requirements. Consider the time-delay characteristic for motor starts or transformer inrush. Always verify the Class RK5 rejection feature fits your fuse holder. Consult a qualified engineer for coordination studies.

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 cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Class RK5 time-delay cylindrical fuse rated 40 A, 250 V AC and 125 V DC. Features an indicating function for blown-fuse detection. Used for overcurrent protection in branch circuits, motor and transformer applications
LITTELFUSE
Class RK5 time-delay cylindrical fuse rated 40 A, 250 V AC and 125 V DC. Features an indicating function for blown-fuse detection. Used for overcurrent protection in branch circuits, motor and transformer applications
LITTELFUSE Fuse: Class RK5, FLNR-ID Series, Time-Delay, 50 A, 250 V AC, 125 V DC, Indicating (MPN FLNR050ID)
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LITTELFUSE Fuse: Class RK5, FLNR-ID Series, Time-Delay, 50 A, 250 V AC, 125 V DC, Indicating (MPN FLNR050ID)
LITTELFUSE Fuse: Class RK5, FLNR-ID Series, Time-Delay, 35 A, 250 V AC, 125 V DC, Indicating (MPN FLNR035ID)
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LITTELFUSE Fuse: Class RK5, FLNR-ID Series, Time-Delay, 35 A, 250 V AC, 125 V DC, Indicating (MPN FLNR035ID)
LITTELFUSE Fuse: Class RK5, FLNR-ID Series, Time-Delay, 60 A, 250 V AC, 125 V DC, Indicating (MPN FLNR060ID)
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR-ID Series, Time-Delay, 60 A, 250 V AC, 125 V DC, Indicating (MPN FLNR060ID)
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 45 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR045)
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 45 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR045)
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 40 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR040)
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 40 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR040)

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