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#: JTD090ID

FUS 600V T/D CLASS J 90A INDICATING

Part#: L50QS400

FUS 500V SEMICONDUCTOR 400A

Part#: L50QS800

FUS 500V SEMICONDUCTOR 800A

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Catalogs

PROTECTION RELAYS & CONTROLS CATALOG

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INDUSTRIAL CIRCUIT PROTECTION 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.

How to Size a Neutral Grounding Resistor

One of the most critical decision when designing stable and safe electrical systems is system grounding. The key parameter that determines the neutral grounding resistor’s affect on the circuit is the let-through current. This video will focus on how to determine what level of let-through current to specify when designing a resistance-grounded system.

Products

Littelfuse Launches Its Class J Fuse Disconnect Switch to Simplify Operation and Protection

The compact Class J Fuse Disconnect Switch combines a switch and multiple fuses into a single product, offering a simpler way to manually open and close a circuit while safeguarding against overcurrent and short circuits while saving space.

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Press Releases

Littelfuse Launches Its Most Compact Arc-Flash Relay for Tight Spaces

AF0025 Series OEM-solution provides AC and DC arc-flash protection with flexible mounting options

CHICAGO, September 27, 2023 — Littelfuse, Inc., (NASDAQ: LFUS), a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world launches its AF0025 series, a cost-effective arc-flash protection solution in our most compact package for OEM applications.

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