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LITTELFUSE Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 650 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, 650 A, 600 V AC

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU650.X) is a 650 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-27377

Also listed as: KLLU650X · KLLU650 X · KLLU650-X

Brand
LITTELFUSE
Item
Fuse: Class L, KLLU Series, Bolt-On Body, Time-Delay, 650 A, 600 V AC
Category
Time-Delay Bolt-On Fuses
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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
KLLU650.X
Series
KLLU
Type
KLLU Series, Bolt-On Body, Time-Delay, 650 A
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 KLLU650.X) is a 650 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 KLLU650.X fuse used for?

The LITTELFUSE KLLU650.X is a Class L time-delay bolt-on fuse used for overcurrent protection in industrial power distribution, switchboards, and motor control centers. Its 650 A rating and 600 V AC / 300 V DC capacity make it suitable for high-current branch circuits and feeder protection.

What are the specifications of the LITTELFUSE KLLU650.X?

The LITTELFUSE KLLU650.X is a Class L, KLLU Series time-delay bolt-on fuse rated 650 A, 600 V AC, and 300 V DC. It has a bolt-on body for secure mounting and provides time-delay operation to handle inrush currents. The manufacturer part number is KLLU650.X.

Where to buy the LITTELFUSE KLLU650.X worldwide?

3G Electric supplies the LITTELFUSE KLLU650.X worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this fuse to any country.

How to select the correct LITTELFUSE KLLU series fuse?

Select the LITTELFUSE KLLU series fuse based on system voltage (600 V AC or 300 V DC), continuous current (650 A for the KLLU650.X), and available fault current. Ensure the bolt-on mounting matches your panel. Consult a qualified engineer for coordination with upstream protection devices.

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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Cross-referenced by specification & description
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