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3G Electric
LITTELFUSE KLLU1500X Time-Delay Bolt-On Fuse, 1.5 kA, 600 V AC / 300 V DC - Time-Delay Bolt-On Fuses
LITTELFUSETime-Delay Bolt-On Fuses

LITTELFUSE KLLU1500X Time-Delay Bolt-On Fuse, 1.5 kA, 600 V AC / 300 V DC

The LITTELFUSE KLLU Series Class L Time-Delay Bolt-On Fuse (MPN KLLU1500X) is a 1.5 kA, 600 V AC, 300 V DC industrial fuse with a bolt-on body. It provides time-delay overload protection for high-current circuits.

SKU 3G-OTH-27412

Brand
LITTELFUSE
Item
KLLU1500X Time-Delay Bolt-On Fuse, 1.5 kA, 600 V AC / 300 V DC
Part Number
KLLU1500X
Category
Time-Delay Bolt-On Fuses
Available to Order
Also known as:KLLU1500XLITTELFUSE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
Warning appliesProp 65 warning
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

LITTELFUSE
Manufacturer Part Number
KLLU1500X
Series
KLLU
Type
KLLU Series, Bolt-On Body, Time-Delay, 1.5 kA
AC
600 V
DC
300 V
RoHS
ROHS3 Compliant
Speed
Time-Delay
Standards
CE; CSA; UL
Applications
Electrical, Industrial
Catalog Page
N/A
Mounting Type
Bolt Mount
Response Time
Slow Blow
Current Rating
1.5 kA Current Rating This describes the maximum current these devices can safely handle. Exceeding this current may cause equipment damage or create electrical shock hazards.
Overall Length
10-3/4 in
Fuse Body Style
Bolt-On
Fuse Block Style
Rejection
Overall Diameter
3 in
AC Voltage Rating
600 V AC
Country of Origin
Mexico (subject to change)
DC Voltage Rating
300 V DC
Visual Indication
Non-Indicating
Fuse Class or Type
L
Interrupt Rating - AC
200 kA
Equivalent Brand and Series
Littlefuse KLLU

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 KLLU1500X) is a 1.5 kA, 600 V AC, 300 V DC industrial fuse with a bolt-on body. It provides time-delay overload protection for high-current circuits.

Frequently Asked Questions

What is the LITTELFUSE KLLU1500X fuse used for?

The LITTELFUSE KLLU1500X is a Class L time-delay bolt-on fuse rated 1.5 kA at 600 V AC or 300 V DC. It protects high-current industrial circuits, such as motor feeders, transformers, and main disconnects, against overloads and short circuits.

What are the specifications of the LITTELFUSE KLLU1500X?

The LITTELFUSE KLLU1500X is a KLLU Series Class L fuse with a bolt-on body. It is rated 1.5 kA, 600 V AC, and 300 V DC. It offers time-delay characteristics for handling inrush currents in industrial power distribution systems.

Where to buy the LITTELFUSE KLLU1500X worldwide?

3G Electric supplies the LITTELFUSE KLLU1500X fuse to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this KLLU Series time-delay fuse.

How to select the correct LITTELFUSE KLLU1500X fuse?

Select the LITTELFUSE KLLU1500X for circuits requiring a 1.5 kA, 600 V AC or 300 V DC Class L time-delay fuse. Verify the bolt-on mounting style matches your fuse holder. Always consult the manufacturer's data sheet for application-specific coordination and ampacity requirements.

Used in

Common applications for LITTELFUSE
Industrial drives — Littelfuse PSR series semiconductor fuses for overcurrent protection of variable-frequency drives and DC bus circuits.
Branch circuit protection — Littelfuse CCMR series time-delay fuses in control panels and distribution boards.
Compact equipment — Littelfuse SLC series Class G fuses in rejection-style holders for space-constrained branch circuits.
Main service entrance — Littelfuse KLPC series Class L bolt-on fuses for high-current industrial power distribution.
Motor circuits — Littelfuse FLSR series Class RK5 time-delay fuses for motor branch circuits and transformers.
Power supplies — Littelfuse 473 series axial-lead time-delay fuses for solder-in protection in power supplies and instrumentation.
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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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