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LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 4.5 A, 600 V AC, 300 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLSR Series, Time-Delay, 4.5 A, 600 V AC, 300 V DC

The LITTELFUSE FLSR Series FLSR04.5 is a Class RK5, time-delay cylindrical fuse rated at 4.5 A, 600 V AC and 300 V DC. This non-indicating fuse is designed for overcurrent protection in industrial electrical systems.

SKU 3G-OTH-26747

Also listed as: FLSR045 · FLSR04 5 · FLSR04-5

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLSR Series, Time-Delay, 4.5 A, 600 V AC, 300 V DC
Category
Time-Delay Cylindrical Fuses
Available to Order
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

LITTELFUSE
Manufacturer Part Number
FLSR04.5
Series
FLSR
Type
FLSR Series, Time-Delay, 4.5 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 FLSR Series FLSR04.5 is a Class RK5, time-delay cylindrical fuse rated at 4.5 A, 600 V AC and 300 V DC. This non-indicating fuse is designed for overcurrent protection in industrial electrical systems.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a Littelfuse FLSR04.5 fuse used for?

The Littelfuse FLSR04.5 is a Class RK5 time-delay fuse rated 4.5 A, 600 V AC / 300 V DC. It protects motor circuits, transformers, and control panels from overloads and short circuits. Its non-indicating design suits industrial applications where fuse status is checked by testing rather than visual inspection.

What are the specifications of the Littelfuse FLSR04.5 fuse?

The Littelfuse FLSR04.5 is a Class RK5, time-delay, non-indicating cylindrical fuse. It is rated 4.5 A, 600 V AC, 300 V DC, and belongs to the FLSR series. The manufacturer part number is FLSR04.5. It is designed for branch-circuit protection in industrial equipment.

Where to buy Littelfuse FLSR04.5 fuses worldwide?

3G Electric supplies the Littelfuse FLSR04.5 fuse worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this Class RK5 time-delay fuse.

How to select the right Littelfuse FLSR series fuse for a motor circuit?

To select a Littelfuse FLSR series fuse, match the voltage rating (600 V AC / 300 V DC) and current rating (e.g., 4.5 A) to your circuit. Time-delay fuses handle inrush currents from motors. Verify the interrupting rating meets system fault current. Consult a qualified engineer for proper coordination.

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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