Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 500 mA, 250 V AC, 125 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 500 mA, 250 V AC, 125 V DC

The LITTELFUSE FLNR Series Class RK5 Time-Delay Cylindrical Fuse (MPN FLNR.500) is a 500 mA, non-indicating fuse rated for 250 V AC and 125 V DC. 3G Electric interprets your demand for this specific overcurrent…

SKU 3G-OTH-25847

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLNR Series, Time-Delay, 500 mA, 250 V AC, 125 V DC
Category
Time-Delay Cylindrical Fuses
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

LITTELFUSE
Manufacturer Part Number
FLNR.500
Series
FLNR
Type
FLNR Series, Time-Delay, 500 mA, Non-Indicating
AC
250 V
DC
125 V
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The LITTELFUSE FLNR Series Class RK5 Time-Delay Cylindrical Fuse (MPN FLNR.500) is a 500 mA, non-indicating fuse rated for 250 V AC and 125 V DC. 3G Electric interprets your demand for this specific overcurrent protection component, sources it from our extensive industrial supply network, and delivers it with the technical accountability you expect across 14 departments — including electrical, where our specialist depth in controls and power distribution ensures the right solution.

Frequently Asked Questions

What is the LITTELFUSE FLNR.500 fuse used for?

The LITTELFUSE FLNR.500 is a Class RK5 time-delay cylindrical fuse rated 500 mA at 250 V AC or 125 V DC. It protects motor circuits, transformers, and lighting systems from overcurrent while tolerating harmless inrush currents. Common in industrial control panels and power distribution.

What are the specifications of the LITTELFUSE FLNR.500?

The FLNR.500 is a Class RK5, time-delay, non-indicating fuse from the FLNR series. It is rated 500 mA, 250 V AC, and 125 V DC. The manufacturer part number is FLNR.500. It is designed for overcurrent protection in industrial equipment where time-delay characteristics are required.

Where to buy LITTELFUSE FLNR.500 worldwide?

3G Electric supplies the LITTELFUSE FLNR.500 fuse worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source genuine LITTELFUSE components for industrial applications.

How to select the correct LITTELFUSE FLNR.500 fuse?

Select the FLNR.500 when your circuit requires a 500 mA, 250 V AC or 125 V DC Class RK5 time-delay fuse. Verify the voltage rating matches your system and that the time-delay characteristic suits motor or transformer starting currents. Always consult the LITTELFUSE FLNR series datasheet for application guidance.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 600 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR.600). Key specifications — Series: FLNR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 600 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR.600). Key specifications — Series: FLNR.
LITTELFUSE
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 20 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR020). Key specifications — Series: FLNR.
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 1 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR001). Key specifications — Series: FLNR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 1 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR001). Key specifications — Series: FLNR.
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 800 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR.800). Key specifications — Series: FLNR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 800 mA, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR.800). Key specifications — Series: FLNR.
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 50 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR050). Key specifications — Series: FLNR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 50 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR050). Key specifications — Series: FLNR.
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 3 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR003). Key specifications — Series: FLNR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 3 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR003). Key specifications — Series: FLNR.

More from LITTELFUSE

View all LITTELFUSE parts
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 600 mA, 600 V AC, 300 V DC, Indicating (MPN FLSR.600ID). Key specifications — Series: FLSR-ID.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 600 mA, 600 V AC, 300 V DC, Indicating (MPN FLSR.600ID). Key specifications — Series: FLSR-ID.
LITTELFUSE Fuse: Class RK5, IDSR Series, Time-Delay, 2 A, 600 V AC, 600 V DC, Indicating (MPN IDSR002). Key specifications — Series: IDSR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, IDSR Series, Time-Delay, 2 A, 600 V AC, 600 V DC, Indicating (MPN IDSR002). Key specifications — Series: IDSR.
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 5 A, 600 V AC, 300 V DC, Indicating (MPN FLSR005ID). Key specifications — Series: FLSR-ID.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 5 A, 600 V AC, 300 V DC, Indicating (MPN FLSR005ID). Key specifications — Series: FLSR-ID.
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 17.5 A, 600 V AC, 300 V DC, Indicating (MPN FLSR17.5ID). Key specifications — Series: FLSR-ID.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 17.5 A, 600 V AC, 300 V DC, Indicating (MPN FLSR17.5ID). Key specifications — Series: FLSR-ID.
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 3.5 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR03.5). Key specifications — Series: FLNR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 3.5 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR03.5). Key specifications — Series: FLNR.
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 6.25 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR6.25). Key specifications — Series: FLNR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLNR Series, Time-Delay, 6.25 A, 250 V AC, 125 V DC, Non-Indicating (MPN FLNR6.25). Key specifications — Series: FLNR.
LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 7 A, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR007). Key specifications — Series: FLSR.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 7 A, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR007). Key specifications — Series: FLSR.
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 3.5 A, 600 V AC, 300 V DC, Indicating (MPN FLSR03.5ID). Key specifications — Series: FLSR-ID.
LITTELFUSE
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 3.5 A, 600 V AC, 300 V DC, Indicating (MPN FLSR03.5ID). Key specifications — Series: FLSR-ID.