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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 250 mA, 600 V AC, 300 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 250 mA, 600 V AC, 300 V DC

The LITTELFUSE FLSR.250T is a Class RK5, time-delay cylindrical fuse rated at 250 mA, 600 V AC and 300 V DC. Part of the FLSR Series, this non-indicating fuse is designed for overcurrent protection in industrial…

SKU 3G-OTH-25828

Also listed as: FLSR250T · FLSR 250T · FLSR-250T

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLSR Series, Time-Delay, 250 mA, 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
FLSR.250T
Series
FLSR
Type
FLSR Series, Time-Delay, 250 mA, 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.250T is a Class RK5, time-delay cylindrical fuse rated at 250 mA, 600 V AC and 300 V DC. Part of the FLSR Series, this non-indicating fuse is designed for overcurrent protection in industrial circuits. 3G Electric interprets your demand and sources this genuine component across 14 industrial departments, with specialist depth in electrical controls to support your application.

Frequently Asked Questions

What is the LITTELFUSE FLSR.250T fuse used for?

The LITTELFUSE FLSR.250T is a Class RK5 time-delay fuse rated 250 mA, 600 V AC, 300 V DC. It protects motor circuits, transformers, and other inductive loads from overcurrent and short circuits, allowing harmless inrush currents to pass without nuisance opening.

What are the specifications of the LITTELFUSE FLSR.250T fuse?

The LITTELFUSE FLSR.250T is a Class RK5, time-delay, non-indicating fuse rated 250 mA, 600 V AC, 300 V DC. It belongs to the FLSR series and is designed for overcurrent protection in industrial equipment. The manufacturer part number is FLSR.250T.

Where to buy the LITTELFUSE FLSR.250T fuse worldwide?

3G Electric supplies the LITTELFUSE FLSR.250T 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 and deliver this Class RK5 time-delay fuse to any country.

How to select the correct LITTELFUSE FLSR series fuse for a motor circuit?

Select the LITTELFUSE FLSR series fuse based on motor full-load current and starting characteristics. The time-delay feature handles inrush without tripping. For a 250 mA motor, the FLSR.250T is appropriate. Always verify voltage rating (600 V AC / 300 V DC) and Class RK5 rejection requirements per NEC.

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
LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 300 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.300T)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 300 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.300T)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 200 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.200T)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 600 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.800T)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 150 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.150T)
LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 500 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.500T)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 500 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.500T)
LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 100 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.100T)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 100 mA, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR.100T)

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