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LITTELFUSE FLSR04.5ID Time-Delay Indicating Fuse - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE FLSR04.5ID Time-Delay Indicating Fuse

The LITTELFUSE FLSR-ID Series FLSR04.5ID is a Class RK5, time-delay cylindrical fuse rated at 4.5 A, 600 V AC and 300 V DC, with an indicating feature. 3G Electric interprets this demand and supplies this genuine…

SKU 3G-OTH-28786

Also listed as: FLSR045ID · FLSR04 5ID · FLSR04-5ID

Brand
LITTELFUSE
Item
FLSR04.5ID Time-Delay Indicating Fuse
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
FLSR04.5ID
Series
FLSR-ID
Type
FLSR-ID Series, Time-Delay, 4.5 A, 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-ID Series FLSR04.5ID is a Class RK5, time-delay cylindrical fuse rated at 4.5 A, 600 V AC and 300 V DC, with an indicating feature. 3G Electric interprets this demand and supplies this genuine industrial fuse across 14 departments, with specialist depth in controls to support your electrical protection needs.

Frequently Asked Questions

What is a Littelfuse FLSR-ID time-delay fuse used for?

The Littelfuse FLSR-ID series time-delay fuse protects motor circuits and other inductive loads from overcurrent. Its 4.5 A rating and 600 V AC / 300 V DC capacity suit industrial control panels and power distribution. The indicating feature allows quick visual identification of a blown fuse, reducing downtime.

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

The Littelfuse FLSR04.5ID is a Class RK5, time-delay, indicating fuse rated 4.5 A, 600 V AC, and 300 V DC. It belongs to the FLSR-ID series and features a cylindrical body. The indicating function shows a blown fuse via a window or flag, aiding maintenance in industrial equipment.

Where to buy Littelfuse FLSR04.5ID fuses worldwide?

3G Electric supplies the Littelfuse FLSR04.5ID fuse to customers worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Class RK5 time-delay indicating fuse.

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

Select a Littelfuse FLSR-ID fuse by matching its voltage (600 V AC / 300 V DC) and current rating (e.g., 4.5 A) to your motor's full-load amps. Time-delay fuses tolerate startup inrush without nuisance opening. Verify the interrupting rating meets system fault current. Consult a qualified engineer for branch-circuit protection.

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
Class RK5 time-delay cylindrical fuse rated 7 A at 600 V AC and 300 V DC. Features an indicator that visually signals when the fuse has opened. Designed for overload and short-circuit protection in motor circuits, transformers, and general industrial equipment
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Class RK5 time-delay cylindrical fuse rated 7 A at 600 V AC and 300 V DC. Features an indicator that visually signals when the fuse has opened. Designed for overload and short-circuit protection in motor circuits, transformers, and general industrial equipment
Class RK5, time-delay cylindrical fuse rated 4 A, 600 V AC and 300 V DC, with visual blown-fuse indication. Suitable for overload and short-circuit protection in motor circuits, transformers, and general industrial equipment
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Class RK5, time-delay cylindrical fuse rated 4 A, 600 V AC and 300 V DC, with visual blown-fuse indication. Suitable for overload and short-circuit protection in motor circuits, transformers, and general industrial equipment
Class RK5 time-delay cylindrical fuse rated 40 A, 600 V AC and 300 V DC. The FLSR-ID series design accommodates inrush currents in motor circuits, transformers, and inductive loads. Built-in indicator shows when the fuse has opened, aiding troubleshooting in industrial control panels and distribution equipment
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Class RK5 time-delay cylindrical fuse rated 40 A, 600 V AC and 300 V DC. The FLSR-ID series design accommodates inrush currents in motor circuits, transformers, and inductive loads. Built-in indicator shows when the fuse has opened, aiding troubleshooting in industrial control panels and distribution equipment
Class RK5 time-delay cylindrical fuse rated 3.5 A, 600 V AC, and 300 V DC. Features an indicating function for visual blown-fuse detection. Suitable for overload and short-circuit protection in motor circuits, transformers, lighting panels, and industrial control panels
LITTELFUSE
Class RK5 time-delay cylindrical fuse rated 3.5 A, 600 V AC, and 300 V DC. Features an indicating function for visual blown-fuse detection. Suitable for overload and short-circuit protection in motor circuits, transformers, lighting panels, and industrial control panels
Class RK5 time-delay cylindrical fuse rated 50 A, 600 V AC, 300 V DC. Features an indicating function that provides a visual signal when the fuse opens. Suitable for overcurrent protection of motor circuits, transformers, and other inductive loads in industrial control panels and distribution equipment
LITTELFUSE
Class RK5 time-delay cylindrical fuse rated 50 A, 600 V AC, 300 V DC. Features an indicating function that provides a visual signal when the fuse opens. Suitable for overcurrent protection of motor circuits, transformers, and other inductive loads in industrial control panels and distribution equipment
Class RK5 time-delay cylindrical fuse rated 5.6 A, 600 V AC and 300 V DC. Features an integral blown-fuse indicator for visual identification of an open circuit. Suitable for overcurrent and short-circuit protection of motor circuits, transformers, and other inductive loads in industrial control panels and power distribution
LITTELFUSE
Class RK5 time-delay cylindrical fuse rated 5.6 A, 600 V AC and 300 V DC. Features an integral blown-fuse indicator for visual identification of an open circuit. Suitable for overcurrent and short-circuit protection of motor circuits, transformers, and other inductive loads in industrial control panels and power distribution

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The LITTELFUSE FLNR040 is a Class RK5, FLNR Series time-delay cylindrical fuse rated at 40 A, 250 V AC and 125 V DC, non-indicating. It provides overcurrent protection for motors, transformers, and lighting circuits, accommodating inrush currents without nuisance opening. Suitable for use in industrial and commercial power distribution systems
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The LITTELFUSE FLNR040 is a Class RK5, FLNR Series time-delay cylindrical fuse rated at 40 A, 250 V AC and 125 V DC, non-indicating. It provides overcurrent protection for motors, transformers, and lighting circuits, accommodating inrush currents without nuisance opening. Suitable for use in industrial and commercial power distribution systems
The LITTELFUSE FLSR010 is a Class RK5, time-delay cylindrical fuse rated at 10 A with 600 V AC and 300 V DC capacity. It is non-indicating and belongs to the FLSR series. This fuse is used for branch-circuit protection in industrial control panels, motor starters, and similar applications where time-delay characteristics accommodate inrush currents
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The LITTELFUSE FLSR010 is a Class RK5, time-delay cylindrical fuse rated at 10 A with 600 V AC and 300 V DC capacity. It is non-indicating and belongs to the FLSR series. This fuse is used for branch-circuit protection in industrial control panels, motor starters, and similar applications where time-delay characteristics accommodate inrush currents
Class RK5 time-delay cylindrical fuse rated 8 A, 600 V AC and 300 V DC. Features an indicating function that visually signals a blown fuse. Suitable for overload and short-circuit protection in motor circuits, transformers, and general industrial equipment
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Class RK5 time-delay cylindrical fuse rated 8 A, 600 V AC and 300 V DC. Features an indicating function that visually signals a blown fuse. Suitable for overload and short-circuit protection in motor circuits, transformers, and general industrial equipment
The LITTELFUSE FLNR012 is a Class RK5, FLNR Series time-delay cylindrical fuse rated 12 A at 250 V AC and 125 V DC. It is non-indicating and designed for branch-circuit protection in equipment with high inrush currents, such as motors, transformers, and lighting circuits. The time-delay characteristic prevents nuisance opening during startup
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The LITTELFUSE FLNR012 is a Class RK5, FLNR Series time-delay cylindrical fuse rated 12 A at 250 V AC and 125 V DC. It is non-indicating and designed for branch-circuit protection in equipment with high inrush currents, such as motors, transformers, and lighting circuits. The time-delay characteristic prevents nuisance opening during startup
Class RK5, time-delay cylindrical fuse rated 45 A, 600 V AC and 300 V DC. Features a blown-fuse indicator for visual identification. Provides overcurrent protection for motor circuits, transformers, and other inductive loads where temporary inrush currents occur
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Class RK5, time-delay cylindrical fuse rated 45 A, 600 V AC and 300 V DC. Features a blown-fuse indicator for visual identification. Provides overcurrent protection for motor circuits, transformers, and other inductive loads where temporary inrush currents occur
Midget time-delay cylindrical fuse rated 10 A, 500 V AC, and 300 V DC. Measures 13/32 in x 1 1/2 in. Provides overcurrent protection in circuits with temporary inrush currents, such as motor controls, transformers, and solenoids
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Midget time-delay cylindrical fuse rated 10 A, 500 V AC, and 300 V DC. Measures 13/32 in x 1 1/2 in. Provides overcurrent protection in circuits with temporary inrush currents, such as motor controls, transformers, and solenoids
Class RK5 time-delay cylindrical fuse rated 60 A, 600 V AC and 300 V DC. Features visual blown-fuse indication for faster troubleshooting. Accommodates temporary inrush currents typical of motor circuits, transformers, and other inductive loads in industrial control panels
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Class RK5 time-delay cylindrical fuse rated 60 A, 600 V AC and 300 V DC. Features visual blown-fuse indication for faster troubleshooting. Accommodates temporary inrush currents typical of motor circuits, transformers, and other inductive loads in industrial control panels
Time-delay midget fuse rated 600 mA, 500 V AC, 300 V DC. Measures 13/32 in x 1 1/2 in. Provides overcurrent protection for motor circuits, control transformers, and inductive loads requiring delayed blow characteristics
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Time-delay midget fuse rated 600 mA, 500 V AC, 300 V DC. Measures 13/32 in x 1 1/2 in. Provides overcurrent protection for motor circuits, control transformers, and inductive loads requiring delayed blow characteristics