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LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 3.5 A, 250 V AC, 125 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 3.5 A, 250 V AC, 125 V DC

The LITTELFUSE FLNR Series Class RK5 Time-Delay Cylindrical Fuse (MPN FLNR03.5) is a 3.5 A, non-indicating fuse rated for 250 V AC and 125 V DC. 3G Electric interprets your demand for industrial circuit protection…

SKU 3G-OTH-25899

Also listed as: FLNR035 · FLNR03 5 · FLNR03-5

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLNR Series, Time-Delay, 3.5 A, 250 V AC, 125 V DC
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
FLNR03.5
Series
FLNR
Type
FLNR Series, Time-Delay, 3.5 A, Non-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 Series Class RK5 Time-Delay Cylindrical Fuse (MPN FLNR03.5) is a 3.5 A, non-indicating fuse rated for 250 V AC and 125 V DC. 3G Electric interprets your demand for industrial circuit protection and sources this specific fuse across 14 departments, with specialist depth in electrical controls to ensure the right solution.

Frequently Asked Questions

What is the LITTELFUSE FLNR03.5 fuse used for?

The LITTELFUSE FLNR03.5 is a Class RK5 time-delay fuse rated 3.5 A, 250 V AC / 125 V DC. It protects motor circuits, transformers, and lighting systems from overloads and short circuits. Its time-delay characteristic handles inrush currents without nuisance opening, making it suitable for industrial control panels and power distribution.

What are the specifications of the LITTELFUSE FLNR03.5?

The LITTELFUSE FLNR03.5 is a Class RK5, FLNR series, time-delay, non-indicating fuse. It is rated 3.5 A, 250 V AC and 125 V DC. The manufacturer part number is FLNR03.5. It is designed for cylindrical fuse holders and provides reliable overcurrent protection in industrial circuits.

Where to buy LITTELFUSE FLNR03.5 worldwide?

3G Electric supplies the LITTELFUSE FLNR03.5 fuse to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this Class RK5 time-delay fuse.

How to select the correct LITTELFUSE FLNR03.5 replacement?

To select the correct replacement, verify the fuse's voltage rating (250 V AC / 125 V DC), current rating (3.5 A), and Class (RK5). Ensure the interrupting capacity meets your system requirements. The FLNR series is time-delay, so it suits motor or transformer circuits. Always consult the equipment manual or a qualified engineer.

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
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