Littelfuse, Inc.

Electrical Industry Company Profile

Littelfuse, Inc.

8755 W Higgins Road
Chicago, IL 60631
(800) 832-3273

Product Data

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Part#: FLNR040ID

FUS 250V T/D CLASS RK5 40A INDICATING

Part#: KLK025

FUS 600V F/A MIDGET 25A

Part#: KLNR200

FUS 250V F/A CLASS RK1 200A

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Catalogs

INDUSTRIAL CIRCUIT PROTECTION CATALOG

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PROTECTION RELAYS & CONTROLS CATALOG

Videos

Littelfuse, Inc.

How to Properly Protect a BESS Power Circuit from Overcurrents

Overcurrents can cause extensive damage in a battery energy storage system as well as costly downtime. That is why circuit protection is imperative. Circuit protection fuses have many advantages including easy installation and replacement, low watt loss and a compact size. But, sizing fuses accurately is challenging. Littelfuse provides the formulas to calculate fuse sizes for maximum protection, reliability and cost-effectiveness.

Littelfuse, Inc.

Maximizing Your HVAC Applications for Optimal Performance

For critical HVAC application needs, leading brands rely on Littelfuse with nearly 100 years of experience. From overload to overcurrent, and accuracy to durability, we have your equipment needs covered with protection, control and sensing components to enhance your overall HVAC system performance.

Products

ESR Fuses Offer a Wider Range of Protection for Battery Racks

The Littelfuse Energy Storage Rack (ESR) series of fuses are designed specifically to protect battery racks from a range of fault currents to help prevent equipment damage or expensive system failures. The 1500 V dc high-speed square body fuse is extremely fast-acting to respond quickly to safeguard the battery module. Available in NH 1XL and 3XL sizes and a variety of amperages.

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Press Releases

Littelfuse Launches Its Class J Fuse Disconnect Switch

Product combines switch and fuses to simplify operation and protection while saving space

CHICAGO, October 4, 2023 — Littelfuse, Inc., (NASDAQ: LFUS), a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world, has launched its Class J Fuse Disconnect Switch.

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