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LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 45 A, 600 V AC, 300 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 45 A, 600 V AC, 300 V DC

The LITTELFUSE FLSR-ID Series FLSR045ID is a Class RK5, time-delay cylindrical fuse rated at 45 A, 600 V AC and 300 V DC, with an indicating feature. This time-delay fuse provides overcurrent protection for…

SKU 3G-OTH-28145

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLSR-ID Series, Time-Delay, 45 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
FLSR045ID
Series
FLSR-ID
Type
FLSR-ID Series, Time-Delay, 45 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 FLSR045ID is a Class RK5, time-delay cylindrical fuse rated at 45 A, 600 V AC and 300 V DC, with an indicating feature. This time-delay fuse provides overcurrent protection for industrial circuits, sourced and supported by 3G Electric across 14 industrial departments, with specialist depth in electrical controls.

Frequently Asked Questions

What is the LITTELFUSE FLSR045ID fuse used for?

The LITTELFUSE FLSR045ID is a Class RK5, time-delay, indicating fuse rated 45 A, 600 V AC / 300 V DC. It protects motor circuits, transformers, and other inductive loads where temporary inrush currents occur, while its blown-fuse indicator speeds troubleshooting in industrial control panels and power distribution.

What are the specifications of the LITTELFUSE FLSR045ID?

The LITTELFUSE FLSR045ID is a Class RK5, time-delay, indicating fuse from the FLSR-ID series. It is rated 45 A, 600 V AC, 300 V DC. The manufacturer part number is FLSR045ID. It provides overload and short-circuit protection with a visual blown-fuse indicator for quick identification.

Where to buy the LITTELFUSE FLSR045ID worldwide?

3G Electric supplies the LITTELFUSE FLSR045ID fuse to customers worldwide. As a global industrial solutions provider, we handle full 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 correct LITTELFUSE FLSR045ID replacement?

To select the correct LITTELFUSE FLSR045ID replacement, verify the voltage rating (600 V AC / 300 V DC), current rating (45 A), and Class (RK5). Confirm the FLSR-ID series and indicating feature match your application. Always consult the equipment nameplate and follow NEC guidelines for fuse sizing and 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 40 A, 600 V AC, 300 V DC, Indicating (MPN FLSR040ID)
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LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 40 A, 600 V AC, 300 V DC, Indicating (MPN FLSR040ID)
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LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 6 A, 600 V AC, 300 V DC, Indicating (MPN FLSR006ID)
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LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 35 A, 600 V AC, 300 V DC, Indicating (MPN FLSR035ID)

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