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Electrical Industry New Product News

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.

This Class aBat partial range ESR fuse has superior short circuit protection and a low minimum breaking capacity (MBC)—from 300 % or 3 times the fuse’s rated current to 250 kA—to cover a range of over currents that traditional high-speed partial range fuses do not protect against.

The ESR fuse safely interrupts most faults in a battery storage system to avoid catastrophic failures and costly shutdowns.

Features and Benefits:

--High dc interrupting rating provides superior short-circuit protection and the ability to scale-up systems without the need to redesign the existing circuit protection, saving time and costs

--The low minimum breaking current offers easy coordination with battery modules and reduces size and rating of dc contactors to save space and costs

--Extremely fast acting delivers high-speed performance

--Low watt loss maximizes efficiency by preventing energy loss and minimizing the wasted power of components

--Conforming to the IEC60269-7 battery standard, the ESR series is specifically designed to safeguard evolving battery technologies with fuse circuit protection

--Compact NH 1XL and 3XL sizes save space and offer design flexibility

Applications:

--Battery energy storage systems (BESSs) – Battery Protection Unit (BPU) and battery racks
--Power conversion systems
--Dc common bus systems
--Hybrid PV-BESS inverters

Liquatite® Flexible Conduit Solutions for Infrastructure Installations

Liquidtight flexible conduit types will vary for infrastructure installations depending on the specific application, such as for transportation, wastewater, telecommunications, EV, or utilities. Depending on the application, conduit solutions may require extra corrosion resistance, low smoke/zero-halogen properties, UL listing, UV resistance, high durability, or more. Liquatite® conduits offer solutions for these applications.

Electri-Flex Delivers a Comprehensive Line of High/Low-Temperature Flexible Liquidtight

Electri-Flex's specialty High/Low-Temperature Liquatite® provides versatile flexible electrical conduits for extreme environments, featuring metal and nonmetallic, UV-stabilized options resistant to corrosion, oils, and acids. It includes specific types for flexibility, RFI/EMI shielding, and wide temperature ranges, suitable for various demanding applications.

Sustainable Power Meets Unmatched Safety: Electri-Flex's Liquatite® for Renewable Energy

Manufactured to meet the unique challenges of renewable energy installations. Electri-Flex's range of liquid-tight flexible electrical conduits, including Types ATLA, LA, NM, NMHT, and ABR are not only UL-listed, and CSA certified but engineered with features like UV resistance, flame retardant, extreme working temperatures, oil and mild acid resistance, and more.

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.

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

The AF0025 Series is a cost-effective arc-flash protection solution for OEM applications. With a depth of only 1.82” (46.23 mm), this compact relay significantly reduces arc-fault damage in AC and DC compartments by detecting the light from an arc-flash and rapidly providing a trip signal.

How to Properly Protect a BESS Power Circuit from Overcurrents

A battery energy storage system requires proper circuit protection. Overcurrents not only frequently damage systems, but are also the culprit of downtime, which is detrimental to a company’s bottom line. Fuses are a great way to protect a system simply and cost-effectively. Learn how to properly protect a BESS power circuit from overcurrents with this application guide.