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#: FLSR005ID

FUS 600V T/D CLASS RK5 5A INDICATING

Part#: LLSRK004ID

FUS 600V T/D CLASS RK1 4A INDICATOR P

Part#: FLM025

FUS 250V T/D MIDGET 25A

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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.

Prevention through Design with Special-Purpose GFCIs

With power comes great responsibility. Hundreds of workers are killed yearly from electrical shock, and tens of thousands of electrical shock incidents over the past several years resulted in injuries requiring time away from work. Find out how GFCIs, including commercial GFCIs and specialized ones with higher trip levels, effectively prevent such incidents. More Info

Products

New SPDN Devices Provide Equipment Protection from Transient Overvoltage Events Lasting Micro-seconds

Littelfuse NEMA-style Surge Protective Device (SPDN) series helps mitigate costly damage and downtime. It has more direct modes of protection in a small package. The external panel mount is available for sub-distribution board applications in construction, food and beverage, HVAC/R, oil and gas, light industrial and water/wastewater industries.

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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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