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LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 20 A, 600 V AC, 300 V DC - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 20 A, 600 V AC, 300 V DC

The LITTELFUSE FLSR-ID Series FLSR020ID is a Class RK5, time-delay cylindrical fuse rated at 20 A, 600 V AC and 300 V DC, with an indicating feature. This component provides overcurrent protection with a delayed…

SKU 3G-OTH-29037

Brand
LITTELFUSE
Item
Fuse: Class RK5, FLSR-ID Series, Time-Delay, 20 A, 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
FLSR020ID
Series
FLSR-ID
Type
FLSR-ID Series, Time-Delay, 20 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 FLSR020ID is a Class RK5, time-delay cylindrical fuse rated at 20 A, 600 V AC and 300 V DC, with an indicating feature. This component provides overcurrent protection with a delayed response for handling inrush currents, and its visual indication aids in identifying a blown fuse during maintenance.

Frequently Asked Questions

What is the LITTELFUSE FLSR020ID fuse used for?

The LITTELFUSE FLSR020ID is a Class RK5 time-delay fuse rated 20 A, 600 V AC / 300 V DC, with an indicating feature. It protects motors, transformers, and other inductive loads from overcurrent and short circuits in industrial control panels, HVAC equipment, and distribution systems.

What are the specifications of the LITTELFUSE FLSR020ID?

The LITTELFUSE FLSR020ID is part of the FLSR-ID Series, a Class RK5 time-delay cylindrical fuse. It carries 20 A, 600 V AC / 300 V DC, and includes an indicating function that shows when the fuse has opened. The manufacturer part number is FLSR020ID.

Where to buy LITTELFUSE FLSR020ID worldwide?

3G Electric supplies the LITTELFUSE FLSR020ID fuse worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this Class RK5 time-delay fuse to any country.

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

Select the LITTELFUSE FLSR-ID fuse based on motor full-load current and starting characteristics. The FLSR020ID, rated 20 A, provides time-delay to handle inrush without nuisance opening. Verify voltage (600 V AC / 300 V DC) and ensure the fuse class (RK5) matches your panel's rejection requirements.

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, 25 A, 600 V AC, 300 V DC, Indicating (MPN FLSR025ID)
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LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 25 A, 600 V AC, 300 V DC, Indicating (MPN FLSR025ID)
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LITTELFUSE Fuse: Class RK5, FLSR-ID Series, Time-Delay, 2.8 A, 600 V AC, 300 V DC, Indicating (MPN FLSR02.8ID)

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