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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 25 A, 600 V AC, 300 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 25 A, 600 V AC, 300 V DC

The LITTELFUSE FLSR Series Fuse (MPN FLSR025) is a Class RK5, time-delay cylindrical fuse rated at 25 A, 600 V AC and 300 V DC, non-indicating. 3G Electric interprets your demand for industrial overcurrent…

SKU 3G-OTH-26702

Also listed as: FLSR 025 · FLSR-025

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLSR Series, Time-Delay, 25 A, 600 V AC, 300 V DC
Category
Time-Delay Cylindrical Fuses
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LITTELFUSE
Manufacturer Part Number
FLSR025
Series
FLSR
Type
FLSR Series, Time-Delay, 25 A, Non-Indicating
AC
600 V
DC
300 V

Technical Documents

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

Product Description

The LITTELFUSE FLSR Series Fuse (MPN FLSR025) is a Class RK5, time-delay cylindrical fuse rated at 25 A, 600 V AC and 300 V DC, non-indicating. 3G Electric interprets your demand for industrial overcurrent protection, sources this genuine component, and supports your application with specialist expertise across 14 departments — including electrical, power transmission, and controls — backed by deep knowledge in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the LITTELFUSE FLSR025 fuse used for?

The LITTELFUSE FLSR025 is a Class RK5 time-delay fuse rated 25 A, 600 V AC / 300 V DC. It protects motors, transformers, and lighting circuits from overloads and short circuits. Its time-delay characteristic allows harmless inrush currents without nuisance opening, making it suitable for industrial equipment and panelboards.

What are the specifications of the LITTELFUSE FLSR025 fuse?

The LITTELFUSE FLSR025 is a Class RK5, time-delay, non-indicating fuse from the FLSR Series. It is rated 25 A, 600 V AC and 300 V DC. The manufacturer part number is FLSR025. It is designed for cylindrical fuse holders and provides branch-circuit protection in industrial applications.

Where to buy LITTELFUSE FLSR025 fuses worldwide?

3G Electric supplies the LITTELFUSE FLSR025 fuse worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source genuine components to support your maintenance and production needs.

How to select the correct LITTELFUSE FLSR025 fuse for a circuit?

To select the LITTELFUSE FLSR025, verify your circuit voltage does not exceed 600 V AC or 300 V DC, and the continuous load current is below 25 A. Ensure the fuse holder accepts Class RK5 dimensions. For motor circuits, confirm the time-delay rating handles starting inrush. Consult a qualified electrician for code compliance.

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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