We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 800 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, 800 A, 600 V AC

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU800.X) is a 800 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-25858

Also listed as: KLLU800X · KLLU800 X · KLLU800-X

Brand
LITTELFUSE
Item
Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 800 A, 600 V AC
Category
Time-Delay Bolt-On Fuses
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

LITTELFUSE
Manufacturer Part Number
KLLU800.X
Series
KLLU
Type
KLLU Series, Bolt-On Body, Time-Delay, 800 A
AC
600 V
DC
300 V

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU800.X) is a 800 A, 600 V AC, 300 V DC industrial fuse. It features a bolt-on body and time-delay operation for overcurrent protection.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the LITTELFUSE KLLU800.X fuse used for?

The LITTELFUSE KLLU800.X is a Class L time-delay bolt-on fuse rated 800 A, 600 V AC, 300 V DC. It provides overcurrent protection in industrial power distribution, motor circuits, and feeder applications where high interrupting capacity and time-delay characteristics are required.

What are the specifications of the LITTELFUSE KLLU800.X?

The LITTELFUSE KLLU800.X is a KLLU Series Class L bolt-on fuse with time-delay operation. It is rated 800 A, 600 V AC, and 300 V DC. The manufacturer part number is KLLU800.X. It is designed for industrial overcurrent protection in high-current circuits.

Where to buy the LITTELFUSE KLLU800.X worldwide?

3G Electric supplies the LITTELFUSE KLLU800.X 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 on this KLLU Series time-delay bolt-on fuse.

How to select the correct LITTELFUSE KLLU800.X fuse for an application?

Select the LITTELFUSE KLLU800.X by matching its 800 A rating, 600 V AC or 300 V DC voltage, and time-delay characteristic to your circuit's overcurrent protection requirements. Ensure the bolt-on mounting style fits your fuse holder. 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 900 A, 600 V AC, 300 V DC (MPN KLLU900.X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 900 A, 600 V AC, 300 V DC (MPN KLLU900.X)
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1.8 kA, 600 V AC, 300 V DC (MPN KLLU1800X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1.8 kA, 600 V AC, 300 V DC (MPN KLLU1800X)
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 2 kA, 600 V AC, 300 V DC (MPN KLLU2000X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 2 kA, 600 V AC, 300 V DC (MPN KLLU2000X)
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1.2 kA, 600 V AC, 300 V DC (MPN KLLU1200X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1.2 kA, 600 V AC, 300 V DC (MPN KLLU1200X)
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1.35 kA, 600 V AC, 300 V DC (MPN KLLU1350X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1.35 kA, 600 V AC, 300 V DC (MPN KLLU1350X)
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1.4 kA, 600 V AC, 300 V DC (MPN KLLU1400X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1.4 kA, 600 V AC, 300 V DC (MPN KLLU1400X)

More from LITTELFUSE

View all LITTELFUSE parts
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 800 A, 600 V AC, 480 V DC (MPN KLPC800.X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 800 A, 600 V AC, 480 V DC (MPN KLPC800.X)
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 700 A, 600 V AC, 300 V DC (MPN KLLU700.X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 700 A, 600 V AC, 300 V DC (MPN KLLU700.X)
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 4 kA, 600 V AC, 300 V DC (MPN KLLU4000X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 4 kA, 600 V AC, 300 V DC (MPN KLLU4000X)
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 350 A, 600 V AC, 480 V DC (MPN KLPC350.X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 350 A, 600 V AC, 480 V DC (MPN KLPC350.X)
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 450 A, 600 V AC, 480 V DC (MPN KLPC450.X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 450 A, 600 V AC, 480 V DC (MPN KLPC450.X)
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1 kA, 600 V AC, 300 V DC (MPN KLLU1000X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 1 kA, 600 V AC, 300 V DC (MPN KLLU1000X)
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 2 kA, 600 V AC, 480 V DC (MPN KLPC2000X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 2 kA, 600 V AC, 480 V DC (MPN KLPC2000X)
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 1.9 kA, 600 V AC, 480 V DC (MPN KLPC1900X)
LITTELFUSE
LITTELFUSE Fuse: Class L, KLPC Series, Bolt-On Body, Time-Delay, 1.9 kA, 600 V AC, 480 V DC (MPN KLPC1900X)