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LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 900 A, 600 V AC - Time-Delay Bolt-On Fuses
LITTELFUSETime-Delay Bolt-On Fuses

LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 900 A, 600 V AC

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU900.X) is a 900 A, 600 V AC / 300 V DC industrial fuse. This bolt-on body fuse offers time-delay characteristics for handling inrush currents.

SKU 3G-OTH-25935

Also listed as: KLLU900X · KLLU900 X · KLLU900-X

Brand
LITTELFUSE
Item
Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 900 A, 600 V AC
Category
Time-Delay Bolt-On Fuses
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Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

LITTELFUSE
Manufacturer Part Number
KLLU900.X
Series
KLLU
Type
KLLU Series, Bolt-On Body, Time-Delay, 900 A
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 KLLU900.X) is a 900 A, 600 V AC / 300 V DC industrial fuse. This bolt-on body fuse offers time-delay characteristics for handling inrush currents.

Frequently Asked Questions

What is the LITTELFUSE KLLU900.X fuse used for?

The LITTELFUSE KLLU900.X is a 900 A, 600 V AC / 300 V DC Class L time-delay bolt-on fuse. It protects industrial equipment such as motors, transformers, and feeders from overcurrents while safely handling inrush currents. Common applications include switchboards, panelboards, and heavy machinery in manufacturing and utility plants.

What are the specifications of the LITTELFUSE KLLU900.X?

The LITTELFUSE KLLU900.X is a Class L, KLLU Series, bolt-on body, time-delay fuse rated 900 A, 600 V AC, and 300 V DC. It features a bolt-on mounting style for secure installation in industrial fuse holders. The time-delay characteristic allows it to withstand temporary inrush without nuisance opening.

Where to buy LITTELFUSE KLLU900.X worldwide?

3G Electric supplies the LITTELFUSE KLLU900.X fuse worldwide. As a global industrial 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 applications.

How to select the correct LITTELFUSE KLLU900.X fuse?

To select the LITTELFUSE KLLU900.X, verify your circuit voltage (600 V AC or 300 V DC max) and continuous current (900 A). Ensure the bolt-on mounting matches your fuse holder. The time-delay feature suits motor or transformer circuits with high inrush. Always consult the manufacturer's data sheet for coordination and interrupting rating.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
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