We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 3 A, 600 V AC, 500 V DC - Fast-Acting Cylindrical Fuses
LITTELFUSEFast-Acting Cylindrical Fuses

LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 3 A, 600 V AC, 500 V DC

The LITTELFUSE KLK Series Fast-Acting Cylindrical Fuse (MPN KLK003) is a midget-style fuse rated at 3 A, 600 V AC, and 500 V DC. It features a 13/32 in x 1 1/2 in physical size and is designed for fast-acting…

SKU 3G-OTH-127807

Also listed as: KLK 003 · KLK-003

Brand
LITTELFUSE
Item
Fuse: KLK Series, Midget, Fast-Acting, 3 A, 600 V AC, 500 V DC
Category
Fast-Acting Cylindrical Fuses
Available to Order
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

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
KLK003
Type
Midget, Fast-Acting, 3 A, 13/32 in x 1 1/2 in
AC
600 V
DC
500 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

The LITTELFUSE KLK Series Fast-Acting Cylindrical Fuse (MPN KLK003) is a midget-style fuse rated at 3 A, 600 V AC, and 500 V DC. It features a 13/32 in x 1 1/2 in physical size and is designed for fast-acting overcurrent protection in industrial equipment.

Frequently Asked Questions

What is the LITTELFUSE KLK003 fuse used for?

The LITTELFUSE KLK003 is a fast-acting midget fuse used for overcurrent protection in industrial control panels, motor circuits, and power supplies. It quickly interrupts fault currents to safeguard sensitive equipment, making it suitable for applications requiring rapid response to short circuits or overloads.

What are the specifications of the LITTELFUSE KLK003 fuse?

The LITTELFUSE KLK003 is a KLK Series midget, fast-acting fuse rated at 3 A, 600 V AC, and 500 V DC. It has a physical size of 13/32 in x 1 1/2 in. The manufacturer part number is KLK003, and it is designed for cylindrical fuse holders in industrial environments.

Where to buy LITTELFUSE KLK003 fuses worldwide?

You can source LITTELFUSE KLK003 fuses through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times; we supply genuine LITTELFUSE components for industrial applications.

How to select the correct LITTELFUSE KLK003 fuse for an application?

To select the LITTELFUSE KLK003, verify that your circuit requires a 3 A fast-acting fuse with a voltage rating of 600 V AC or 500 V DC. Ensure the physical size (13/32 in x 1 1/2 in) fits your fuse holder. Always confirm the interrupting capacity meets your system's fault current level per LITTELFUSE guidelines.

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 fast-acting 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 →

Compatible alternatives & equivalents

Cross-referenced by specification & description
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 6 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK006)
LITTELFUSE
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 6 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK006)
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 1 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK001)
LITTELFUSE
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 1 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK001)
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 2 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK002)
LITTELFUSE
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 2 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK002)
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 4 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK004)
LITTELFUSE
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 4 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK004)
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 5 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK005)
LITTELFUSE
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 5 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK005)
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 3.5 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK03.5)
LITTELFUSE
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 3.5 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK03.5)

More from LITTELFUSE

View all LITTELFUSE parts →
LITTELFUSE Fuse: JLS Series, Class J, Cylindrical Body, Fast-Acting, 15 A, 600 V AC, Non-Indicating (MPN JLS015)
LITTELFUSE
LITTELFUSE Fuse: JLS Series, Class J, Cylindrical Body, Fast-Acting, 15 A, 600 V AC, Non-Indicating (MPN JLS015)
LITTELFUSE Fuse: JLS Series, Class J, Cylindrical Body, Fast-Acting, 45 A, 600 V AC, Non-Indicating (MPN JLS045)
LITTELFUSE
LITTELFUSE Fuse: JLS Series, Class J, Cylindrical Body, Fast-Acting, 45 A, 600 V AC, Non-Indicating (MPN JLS045)
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 30 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK030)
LITTELFUSE
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 30 A, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK030)
LITTELFUSE Fuse: BLF Series, Midget, Fast-Acting, 1 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN BLF001)
LITTELFUSE
LITTELFUSE Fuse: BLF Series, Midget, Fast-Acting, 1 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN BLF001)
LITTELFUSE Fuse: BLF Series, Midget, Fast-Acting, 2 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN BLF002)
LITTELFUSE
LITTELFUSE Fuse: BLF Series, Midget, Fast-Acting, 2 A, 250 V AC, 13/32 in x 1 1/2 in, Non-Indicating (MPN BLF002)
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 500 mA, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK.500)
LITTELFUSE
LITTELFUSE Fuse: KLK Series, Midget, Fast-Acting, 500 mA, 600 V AC, 500 V DC, 13/32 in x 1 1/2 in (MPN KLK.500)
LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 15 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD015)
LITTELFUSE
LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 15 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD015)
LITTELFUSE Fuse: JLS Series, Class J, Cylindrical Body, Fast-Acting, 20 A, 600 V AC, Non-Indicating (MPN JLS020)
LITTELFUSE
LITTELFUSE Fuse: JLS Series, Class J, Cylindrical Body, Fast-Acting, 20 A, 600 V AC, Non-Indicating (MPN JLS020)