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

3G Electric
LITTELFUSE KLK004 Fast-Acting Cylindrical Fuse - Fast-Acting Cylindrical Fuses
LITTELFUSEFast-Acting Cylindrical Fuses

LITTELFUSE KLK004 Fast-Acting Cylindrical Fuse

The LITTELFUSE KLK Series Fast-Acting Cylindrical Fuse (MPN KLK004) is a midget, fast-acting fuse rated at 4 A, 600 V AC, and 500 V DC. It measures 13/32 in x 1 1/2 in and is designed for overcurrent protection in…

SKU 3G-OTH-134007

Also listed as: KLK 004 · KLK-004

Brand
LITTELFUSE
Item
KLK004 Fast-Acting Cylindrical Fuse
Part Number
KLK004
Category
Fast-Acting Cylindrical Fuses
Available to Order
Also known as:KLK004LITTELFUSE
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
KLK004
Type
Midget, Fast-Acting, 4 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 KLK004) is a midget, fast-acting fuse rated at 4 A, 600 V AC, and 500 V DC. It measures 13/32 in x 1 1/2 in and is designed for overcurrent protection in industrial equipment.

Frequently Asked Questions

What is the LITTELFUSE KLK004 fuse used for?

The LITTELFUSE KLK004 is a fast-acting midget fuse used for overcurrent protection in industrial equipment. It safeguards sensitive circuits in control panels, motor drives, and power supplies where rapid response to short circuits is critical. Its 4 A rating and 600 V AC / 500 V DC capability make it suitable for general-purpose industrial applications.

What are the specifications of the LITTELFUSE KLK004?

The LITTELFUSE KLK004 is a KLK Series, midget, fast-acting cylindrical fuse rated at 4 A, 600 V AC, and 500 V DC. Its physical dimensions are 13/32 in x 1 1/2 in. The manufacturer part number is KLK004, and it is designed for overcurrent protection in industrial environments.

Where to buy LITTELFUSE KLK004 worldwide?

You can source the LITTELFUSE KLK004 fuse 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 time; we supply genuine LITTELFUSE components for industrial overcurrent protection needs.

How to select the right LITTELFUSE KLK series fuse?

To select the correct LITTELFUSE KLK series fuse, match the voltage rating (600 V AC or 500 V DC) and current rating (e.g., 4 A for KLK004) to your circuit requirements. Ensure the fast-acting characteristic suits sensitive loads. Verify physical dimensions (13/32 in x 1 1/2 in) fit your fuse holder. Consult the LITTELFUSE datasheet for application guidance.

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 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

More from LITTELFUSE

View all LITTELFUSE parts
Midget fast-acting fuse rated 3.5 A, 600 V AC and 500 V DC. Measures 13/32 in x 1 1/2 in. Provides overcurrent protection in control panels, motor circuits, and power supplies
LITTELFUSE
Midget fast-acting fuse rated 3.5 A, 600 V AC and 500 V DC. Measures 13/32 in x 1 1/2 in. Provides overcurrent protection in control panels, motor circuits, and power supplies
Fast-acting cylindrical fuse rated 100 mA, 600 V AC and 500 V DC. Midget size with 13/32 in x 1 1/2 in body. Used for overcurrent protection in control panels, power supplies, and motor control centers
LITTELFUSE
Fast-acting cylindrical fuse rated 100 mA, 600 V AC and 500 V DC. Midget size with 13/32 in x 1 1/2 in body. Used for overcurrent protection in control panels, power supplies, and motor control centers

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first