Littelfuse LS2121-2 - POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover. Applications: Typical applications include heating, air conditioning and refrigeration systems, elevator systems, material handling equipment, control panels, motor controls, switchgear, and anywhere power needs to be distributed to more than one load.
Littelfuse

LS2121-2

Alternate Item Number: 0LS21212Z

UPC: 079458054491


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Overview

The Littelfuse LS2121-2 POWR-BLOKS power distribution block, part of the LX2XXX-DIN series, is engineered for safe and convenient cable splicing, fixed junction tap-off points, and splitting primary power into secondary circuits within industrial environments. This model features an integral DIN-Rail mount for straightforward installation in control panels and electrical enclosures, optimizing space and simplifying maintenance. The LX2XXX-DIN series is designed to enhance safety and operational efficiency in electrical systems. Its robust construction ensures long-term reliability and performance, even in demanding conditions. The DIN-Rail mounting mechanism allows for quick and easy installation and removal, significantly reducing downtime and labor costs. The POWR-BLOKS design guarantees secure connections, minimizing the risk of loose connections and potential electrical hazards. The LS2121-2 is an ideal solution for various applications including heating, air conditioning, and refrigeration systems, elevator systems, material handling equipment, control panels, motor controls, and switchgear. Anywhere power needs to be distributed to multiple loads, this Littelfuse power distribution block offers a dependable, space-saving, and efficient solution. An optional hinged safety cover is available to provide an additional layer of protection against accidental contact with live components, further enhancing system safety. Choose the Littelfuse LS2121-2 for a reliable and efficient power distribution solution that meets the demands of critical industrial applications.
  • Safe and convenient cable splicing
  • Fixed junction tap-off point capability
  • Splits primary power into secondary circuits
  • Integral DIN-Rail mount for easy installation
  • Optional hinged safety cover available for enhanced protection

Specifications

Application
Anywhere power needs to be distributed to more than one load
Brand Name
Littelfuse
Connection Type
Screw Terminal
Material
Polymer/Metal
Mounting Type
DIN-Rail
Poles
2
Series
LX2XXX-DIN
Series
POWR-BLOKS
Size
DIN-Rail Mount
Standard
UL Listed and CSA Certified RoHS
Sub Brand
LS Series
NH plastic base Size NH00 1000VAC 1000VDC 160A 2-Pole DIN Rail Connection Screw EP Type

F218758

NH plastic base Size NH00 1000VAC 1000VDC 160A 2-Pole DIN Rail Connection Screw EP Type
POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover.

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POWR-BLOKS power distribution blocks offer a safe, convenient way of splicing cables, providing a fixed junction tap-off point or splitting primary power into secondary circuits. LX2XXX-DIN series offers integral DIN-Rail mount and an optional hinged safety cover.
D2 5/8.SFLT ADO.2

1SNA199187R1400

D2 5/8.SFLT ADO.2

Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.