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LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 3.5 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, 3.5 kA, 600 V AC

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU3500X) is a 3.5 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-26339

Brand
LITTELFUSE
Item
Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 3.5 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
KLLU3500X
Series
KLLU
Type
KLLU Series, Bolt-On Body, Time-Delay, 3.5 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 KLLU3500X) is a 3.5 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 KLLU3500X fuse used for?

The LITTELFUSE KLLU3500X is a Class L time-delay bolt-on fuse used for overcurrent protection in high-current industrial applications such as switchboards, panelboards, and motor control centers. Its time-delay characteristic allows it to withstand temporary inrush currents without nuisance opening.

What are the specifications of the LITTELFUSE KLLU3500X fuse?

The LITTELFUSE KLLU3500X is a KLLU Series Class L time-delay bolt-on fuse rated 3.5 kA, 600 V AC, and 300 V DC. It features a bolt-on body for secure mounting in high-current circuits. The manufacturer part number is KLLU3500X.

Where to buy the LITTELFUSE KLLU3500X fuse worldwide?

3G Electric supplies the LITTELFUSE KLLU3500X fuse worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this LITTELFUSE KLLU Series fuse globally.

How to select the correct LITTELFUSE KLLU3500X fuse for an application?

To select the correct LITTELFUSE KLLU3500X fuse, verify your circuit's voltage (600 V AC or 300 V DC max) and continuous current (3.5 kA). Ensure the bolt-on body matches your mounting requirements. The time-delay feature is ideal for motor or transformer circuits with high inrush. Consult a qualified engineer for coordination studies.

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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