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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 3.5 A, 600 V AC, 300 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 3.5 A, 600 V AC, 300 V DC

The LITTELFUSE FLSR03.5 is a Class RK5, time-delay cylindrical fuse from the FLSR Series, rated at 3.5 A, 600 V AC and 300 V DC, non-indicating. 3G Electric interprets this demand and sources the exact OEM part…

SKU 3G-OTH-25631

Also listed as: FLSR035 · FLSR03 5 · FLSR03-5

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLSR Series, Time-Delay, 3.5 A, 600 V AC, 300 V DC
Category
Time-Delay Cylindrical Fuses
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Delivery
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
FLSR03.5
Series
FLSR
Type
FLSR Series, Time-Delay, 3.5 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 FLSR03.5 is a Class RK5, time-delay cylindrical fuse from the FLSR Series, rated at 3.5 A, 600 V AC and 300 V DC, non-indicating. 3G Electric interprets this demand and sources the exact OEM part, providing accountability across 14 industrial departments — with specialist depth in controls to support your electrical protection needs.

Frequently Asked Questions

What is the LITTELFUSE FLSR03.5 fuse used for?

The LITTELFUSE FLSR03.5 is a Class RK5 time-delay fuse rated 3.5 A, 600 V AC, 300 V DC. It protects motors, transformers, and lighting circuits from overloads and short circuits. Its time-delay characteristic allows it to withstand harmless inrush currents without nuisance opening.

What are the specifications of the LITTELFUSE FLSR03.5 fuse?

The LITTELFUSE FLSR03.5 is a Class RK5, time-delay, non-indicating fuse. It is rated 3.5 A, 600 V AC, 300 V DC, and belongs to the FLSR Series. The manufacturer part number is FLSR03.5. It is designed for overcurrent protection in industrial equipment.

Where to buy LITTELFUSE FLSR03.5 worldwide?

3G Electric supplies the LITTELFUSE FLSR03.5 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 an application?

To select the correct LITTELFUSE FLSR series fuse, match the voltage rating (600 V AC or 300 V DC) and current rating (e.g., 3.5 A) to your circuit requirements. Consider the time-delay feature for motor or transformer starting currents. Always consult the manufacturer's data sheet for coordination and interrupting rating.

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, 35 A, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR035)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 35 A, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR035)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 30 A, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR030)
LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 2.5 A, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR02.5)
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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 2.5 A, 600 V AC, 300 V DC, Non-Indicating (MPN FLSR02.5)

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