Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
Describe the job or paste specifications. Press Enter or Search.
RFQ CartGet a QuoteSign inSign up
LITTELFUSE FLSR001 Time-Delay Cylindrical Fuse - Time-Delay Cylindrical Fuses
LITTELFUSETime-Delay Cylindrical Fuses

LITTELFUSE FLSR001 Time-Delay Cylindrical Fuse

<p>The LITTELFUSE FLSR001 is a time-delay cylindrical fuse from the FLSR series, rated at 1 A with a voltage rating of 600 V AC and 300 V DC. This Class RK5 fuse is non-indicating and designed for applications…

SKU 3G-OTH-26525

Also listed as: FLSR 001 · FLSR-001

Brand
LITTELFUSE
Item
FLSR001 Time-Delay Cylindrical Fuse
Part Number
FLSR001
Category
Time-Delay Cylindrical Fuses
Available to Order
Also known as:FLSR001LITTELFUSE
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

LITTELFUSE
Manufacturer Part Number
FLSR001
Series
FLSR
Type
FLSR Series, Time-Delay, 1 A, Non-Indicating
AC
600 V
DC
300 V

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

LITTELFUSE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

<p>The LITTELFUSE FLSR001 is a time-delay cylindrical fuse from the FLSR series, rated at 1 A with a voltage rating of 600 V AC and 300 V DC. This Class RK5 fuse is non-indicating and designed for applications requiring overload and short-circuit protection with a time-delay characteristic to withstand inrush currents.</p><p>Ideal for motor circuits, transformers, and other inductive loads, the FLSR001 is a reliable choice for industrial maintenance and OEM applications. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What are the voltage and current ratings of the LITTELFUSE FLSR001?

The FLSR001 is rated at 1 A, with a voltage rating of 600 V AC and 300 V DC.

Is the FLSR001 a time-delay fuse? What does that mean?

Yes, it is a time-delay fuse, meaning it can tolerate temporary overloads (like inrush currents) without opening, while still providing protection against sustained overcurrents.

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.
Not sure this is the right part? Photo-identify it→

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from LITTELFUSE

View all LITTELFUSE parts →
The LITTELFUSE FLSR.250T is a Class RK5, time-delay cylindrical fuse rated at 250 mA, 600 V AC, and 300 V DC. Part of the FLSR Series, this non-indicating fuse provides overcurrent protection for circuits containing inductive loads such as motors and transformers, allowing harmless inrush currents to pass without nuisance opening
LITTELFUSE
The LITTELFUSE FLSR.250T is a Class RK5, time-delay cylindrical fuse rated at 250 mA, 600 V AC, and 300 V DC. Part of the FLSR Series, this non-indicating fuse provides overcurrent protection for circuits containing inductive loads such as motors and transformers, allowing harmless inrush currents to pass without nuisance opening
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
LITTELFUSE
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
Time-delay cylindrical fuse from the FLM Series, rated 25 A at 250 V AC. Midget size (13/32 in x 1 1/2 in), non-indicating. Provides overcurrent protection with tolerance for temporary inrush currents, suited for motors, transformers, and control circuits
LITTELFUSE
Time-delay cylindrical fuse from the FLM Series, rated 25 A at 250 V AC. Midget size (13/32 in x 1 1/2 in), non-indicating. Provides overcurrent protection with tolerance for temporary inrush currents, suited for motors, transformers, and control circuits
LITTELFUSE
LITTELFUSE
Class RK5, time-delay cylindrical fuse rated 20 A at 250 V AC and 125 V DC. Non-indicating design. Provides overcurrent protection for circuits with inductive loads such as motors and transformers, accommodating inrush currents without nuisance opening
Class RK5 time-delay cylindrical fuse rated 300 mA at 600 V AC or 300 V DC. Non-indicating type from the FLSR series. Used for overcurrent protection in motor circuits, transformers, and other inductive loads where harmless inrush currents must pass without nuisance opening
LITTELFUSE
Class RK5 time-delay cylindrical fuse rated 300 mA at 600 V AC or 300 V DC. Non-indicating type from the FLSR series. Used for overcurrent protection in motor circuits, transformers, and other inductive loads where harmless inrush currents must pass without nuisance opening
Class RK5, time-delay cylindrical fuse from the FLNR Series. Rated 30 A at 250 V AC and 125 V DC. Non-indicating design. Suitable for branch-circuit protection of motors, transformers, and other inductive loads in industrial control panels and distribution equipment
LITTELFUSE
Class RK5, time-delay cylindrical fuse from the FLNR Series. Rated 30 A at 250 V AC and 125 V DC. Non-indicating design. Suitable for branch-circuit protection of motors, transformers, and other inductive loads in industrial control panels and distribution equipment
Class RK5 time-delay cylindrical fuse rated 15 A, 600 V AC and 300 V DC. Non-indicating design with time-delay characteristic for motor and transformer protection. Suitable for branch-circuit protection of inductive loads in industrial control panels and HVAC equipment
LITTELFUSE
Class RK5 time-delay cylindrical fuse rated 15 A, 600 V AC and 300 V DC. Non-indicating design with time-delay characteristic for motor and transformer protection. Suitable for branch-circuit protection of inductive loads in industrial control panels and HVAC equipment
The LITTELFUSE FLM002 is a 2 A, 250 V AC time-delay cylindrical fuse with a midget 13/32 in x 1 1/2 in body. It is non-indicating and part of the FLM series. This fuse is used for overcurrent protection in industrial control circuits, motor starters, and similar equipment where time-delay characteristics help prevent nuisance opening during temporary current surges
LITTELFUSE
The LITTELFUSE FLM002 is a 2 A, 250 V AC time-delay cylindrical fuse with a midget 13/32 in x 1 1/2 in body. It is non-indicating and part of the FLM series. This fuse is used for overcurrent protection in industrial control circuits, motor starters, and similar equipment where time-delay characteristics help prevent nuisance opening during temporary current surges

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first