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LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 4 A, 600 V AC, 600 V DC - Fast-Acting Cylindrical Fuses
LITTELFUSEFast-Acting Cylindrical Fuses

LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 4 A, 600 V AC, 600 V DC

The LITTELFUSE KLKD Series Fast-Acting Cylindrical Fuse (MPN KLKD004) is a midget fuse rated at 4 A, 600 V AC, and 600 V DC. It measures 13/32 in x 1 1/2 in and is designed for fast-acting overcurrent protection.

SKU 3G-OTH-127886

Also listed as: KLKD 004 · KLKD-004

Brand
LITTELFUSE
Item
Fuse: KLKD Series, Midget, Fast-Acting, 4 A, 600 V AC, 600 V DC
Category
Fast-Acting Cylindrical Fuses
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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
KLKD004
Type
Midget, Fast-Acting, 4 A, 13/32 in x 1 1/2 in
AC
600 V
DC
600 V

Technical Documents

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

Product Description

The LITTELFUSE KLKD Series Fast-Acting Cylindrical Fuse (MPN KLKD004) is a midget fuse rated at 4 A, 600 V AC, and 600 V DC. It measures 13/32 in x 1 1/2 in and is designed for fast-acting overcurrent protection.

Frequently Asked Questions

What is the LITTELFUSE KLKD004 fuse used for?

The LITTELFUSE KLKD004 is a fast-acting midget fuse used for overcurrent protection in industrial control panels, instrumentation, and DC power supplies. It safeguards sensitive circuits from short circuits and overloads where rapid response is critical to prevent damage to downstream components.

What are the specifications of the LITTELFUSE KLKD004 fuse?

The LITTELFUSE KLKD004 is a KLKD Series midget fuse rated at 4 A, 600 V AC, and 600 V DC. It has a fast-acting characteristic and measures 13/32 in x 1 1/2 in. The manufacturer part number is KLKD004, and it is designed for cylindrical fuse holders.

Where to buy LITTELFUSE KLKD004 fuses worldwide?

3G Electric supplies the LITTELFUSE KLKD004 fuse worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this fast-acting midget fuse for your overcurrent protection needs.

How to select the correct LITTELFUSE KLKD fuse for my application?

To select the correct LITTELFUSE KLKD fuse, match the voltage rating (600 V AC/DC) and current rating (e.g., 4 A for KLKD004) 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 LITTELFUSE application notes for 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 fast-acting 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: KLKD Series, Midget, Fast-Acting, 5 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD005)
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LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 5 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD005)
LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 2 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD002)
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LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 2 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD002)
LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 3 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD003)
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LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 3 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD003)
LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 12 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD012)
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LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 12 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD012)
LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 1 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD001)
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LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 1 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD001)
LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 20 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD020)
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LITTELFUSE Fuse: KLKD Series, Midget, Fast-Acting, 20 A, 600 V AC, 600 V DC, 13/32 in x 1 1/2 in (MPN KLKD020)

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