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LITTELFUSE JLS040 Fast-Acting Cylindrical Fuse - Fast-Acting Cylindrical Fuses
LITTELFUSEFast-Acting Cylindrical Fuses

LITTELFUSE JLS040 Fast-Acting Cylindrical Fuse

The LITTELFUSE JLS Series Fast-Acting Cylindrical Fuse (SKU JLS040, MPN JLS040) is a Class J, 40 A, 600 V AC, non-indicating fuse with a cylindrical body. This fast-acting fuse from LITTELFUSE is designed for…

SKU 3G-OTH-133111

Also listed as: JLS 040 · JLS-040

Brand
LITTELFUSE
Item
JLS040 Fast-Acting Cylindrical Fuse
Part Number
JLS040
Category
Fast-Acting Cylindrical Fuses
Available to Order
Also known as:JLS040LITTELFUSE
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Technical Specifications

LITTELFUSE
Manufacturer Part Number
JLS040
Type
Class J, Cylindrical Body, Fast-Acting, 40 A, Non-Indicating
AC
600 V

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

Product Description

The LITTELFUSE JLS Series Fast-Acting Cylindrical Fuse (SKU JLS040, MPN JLS040) is a Class J, 40 A, 600 V AC, non-indicating fuse with a cylindrical body. This fast-acting fuse from LITTELFUSE is designed for overcurrent protection in industrial equipment.

Frequently Asked Questions

What is the LITTELFUSE JLS040 fuse used for?

The LITTELFUSE JLS040 is a Class J, fast-acting cylindrical fuse rated 40 A and 600 V AC. It provides overcurrent protection in industrial equipment such as motor control centers, panelboards, and branch circuits where fast response to short circuits is required.

What are the specifications of the LITTELFUSE JLS040 fuse?

The LITTELFUSE JLS040 is a Class J, fast-acting, non-indicating cylindrical fuse rated 40 A and 600 V AC. It is part of the JLS series and has a cylindrical body. The manufacturer part number is JLS040, and it is designed for overcurrent protection in industrial applications.

Where to buy LITTELFUSE JLS040 fuses worldwide?

3G Electric supplies the LITTELFUSE JLS040 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 Class J fast-acting fuse to any country.

How to select the correct LITTELFUSE JLS series fuse for an application?

To select the correct LITTELFUSE JLS series fuse, verify the voltage rating (600 V AC maximum), current rating (e.g., 40 A for the JLS040), and that the fuse is fast-acting for circuits requiring rapid overcurrent interruption. Ensure the Class J rejection feature matches the fuse holder to prevent substitution with lower-rated fuses.

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 fast-acting cylindrical fuses. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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