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LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 601 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, 601 A, 600 V AC

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU601.X) is a 601 A, 600 V AC, 300 V DC industrial fuse. It features a bolt-on body and time-delay operation for overcurrent protection.

SKU 3G-OTH-27736

Also listed as: KLLU601X · KLLU601 X · KLLU601-X

Brand
LITTELFUSE
Item
Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 601 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
KLLU601.X
Series
KLLU
Type
KLLU Series, Bolt-On Body, Time-Delay, 601 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 KLLU601.X) is a 601 A, 600 V AC, 300 V DC industrial fuse. It features a bolt-on body and time-delay operation for overcurrent protection.

Frequently Asked Questions

What is the LITTELFUSE KLLU601.X fuse used for?

The LITTELFUSE KLLU601.X is a Class L time-delay bolt-on fuse used for overcurrent protection in industrial power distribution, switchboards, and motor control centers. Its 601 A rating and 600 V AC / 300 V DC capacity make it suitable for high-current feeder circuits and equipment requiring sustained overload handling.

What are the specifications of the LITTELFUSE KLLU601.X?

The LITTELFUSE KLLU601.X is a Class L, KLLU Series time-delay bolt-on fuse rated 601 A, 600 V AC, and 300 V DC. It has a bolt-on body design for secure mounting. The manufacturer part number is KLLU601.X, and it is part of the LITTELFUSE KLLU series of industrial fuses.

Where to buy the LITTELFUSE KLLU601.X worldwide?

3G Electric supplies the LITTELFUSE KLLU601.X fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact 3G Electric for pricing and lead time on this KLLU series fuse.

How to select the correct LITTELFUSE KLLU601.X fuse for an application?

To select the LITTELFUSE KLLU601.X, verify your circuit's continuous current does not exceed 601 A and that the system voltage is within 600 V AC or 300 V DC. Ensure the bolt-on mounting matches your fuse holder. The time-delay feature accommodates motor start-up inrush without nuisance opening.

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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