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LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 2.5 kA, 600 V AC - Time-Delay Bolt-On Fuses
LITTELFUSETime-Delay Bolt-On Fuses

LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 2.5 kA, 600 V AC

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU2500X) is a 2.5 kA, 600 V AC / 300 V DC industrial fuse with a bolt-on body. It provides time-delay operation for overcurrent protection in…

SKU 3G-OTH-27758

Brand
LITTELFUSE
Item
Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 2.5 kA, 600 V AC
Category
Time-Delay Bolt-On Fuses
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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
KLLU2500X
Series
KLLU
Type
KLLU Series, Bolt-On Body, Time-Delay, 2.5 kA
AC
600 V
DC
300 V

Technical Documents

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

Product Description

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU2500X) is a 2.5 kA, 600 V AC / 300 V DC industrial fuse with a bolt-on body. It provides time-delay operation for overcurrent protection in high-current applications.

Frequently Asked Questions

What is the LITTELFUSE KLLU2500X fuse used for?

The LITTELFUSE KLLU2500X is a Class L time-delay bolt-on fuse rated 2.5 kA at 600 V AC / 300 V DC. It protects industrial equipment such as switchboards, panelboards, and motor control centers from overcurrents and short circuits in high-current applications.

What are the specifications of the LITTELFUSE KLLU2500X?

The LITTELFUSE KLLU2500X is a KLLU Series Class L fuse with a bolt-on body. It is rated 2.5 kA interrupting capacity, 600 V AC, and 300 V DC. The time-delay feature allows it to withstand temporary inrush currents without nuisance opening.

Where to buy the LITTELFUSE KLLU2500X worldwide?

3G Electric supplies the LITTELFUSE KLLU2500X fuse to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Class L time-delay bolt-on fuse.

How to select the correct LITTELFUSE KLLU2500X replacement?

To select the correct LITTELFUSE KLLU2500X replacement, verify the voltage rating (600 V AC / 300 V DC), current rating (2.5 kA interrupting capacity), and physical dimensions of the bolt-on body. Always match the KLLU Series time-delay characteristic for proper coordination with downstream devices.

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 bolt-on fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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