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LITTELFUSE KLLU1400X Time-Delay Bolt-On Fuse, 1.4 kA, 600 V AC, 300 V DC - Time-Delay Bolt-On Fuses
LITTELFUSETime-Delay Bolt-On Fuses

LITTELFUSE KLLU1400X Time-Delay Bolt-On Fuse, 1.4 kA, 600 V AC, 300 V DC

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU1400X) is a 1.4 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-26106

Brand
LITTELFUSE
Item
KLLU1400X Time-Delay Bolt-On Fuse, 1.4 kA, 600 V AC, 300 V DC
Part Number
KLLU1400X
Category
Time-Delay Bolt-On Fuses
Available to Order
Also known as:KLLU1400XLITTELFUSE
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Technical Specifications

LITTELFUSE
Manufacturer Part Number
KLLU1400X
Series
KLLU
Type
KLLU Series, Bolt-On Body, Time-Delay, 1.4 kA
AC
600 V
DC
300 V

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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 KLLU1400X) is a 1.4 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 KLLU1400X fuse used for?

The LITTELFUSE KLLU1400X is a Class L time-delay bolt-on fuse used for overcurrent protection in high-current industrial applications. It protects feeders, switchboards, and large motor circuits where sustained inrush currents occur, such as in manufacturing plants, data centers, and power distribution systems.

What are the specifications of the LITTELFUSE KLLU1400X?

The LITTELFUSE KLLU1400X is a Class L, KLLU Series time-delay bolt-on fuse rated at 1.4 kA, 600 V AC, and 300 V DC. It features a bolt-on body for secure mounting in high-current industrial panels. The manufacturer part number is KLLU1400X.

Where to buy the LITTELFUSE KLLU1400X worldwide?

3G Electric supplies the LITTELFUSE KLLU1400X worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source genuine LITTELFUSE components for industrial overcurrent protection needs.

How to select the correct LITTELFUSE KLLU1400X fuse?

Select the LITTELFUSE KLLU1400X by verifying your system voltage (600 V AC or 300 V DC max) and continuous current rating (1.4 kA). Ensure the bolt-on mounting matches your fuse holder. For time-delay applications, confirm the inrush duration does not exceed the fuse's time-current curve. Consult a licensed electrician for proper 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.
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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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