Littelfuse LSSY-L - Box cover units provide an economical method of protecting small motors against overcurrent damage. For use with Edison-Base plug fuses (TOO, TLO) or Type S plug fuses (SOO, SLO) with adapters (SAO).
Littelfuse

LSSY-L

Alternate Item Number: LSSYL

UPC: 079458019612

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Overview

The Littelfuse LSSY-L (SKU: LSSY-L) box cover unit provides an economical and reliable method for protecting small motors against overcurrent damage. Engineered by Littelfuse, a recognized leader in circuit protection, this unit is designed for straightforward integration into industrial and commercial electrical systems. Its primary function is to safeguard motor windings and components from the detrimental effects of excessive current, thereby extending motor lifespan and minimizing costly downtime. The LSSY-L is compatible with two common types of plug fuses: Edison-Base plug fuses, specifically models TOO and TLO, and Type S plug fuses, models SOO and SLO. For Type S fuses, an adapter (SAO) is required for proper fitment and function. This dual compatibility offers flexibility in fuse selection based on existing infrastructure or specific application requirements. The robust construction of the LSSY-L ensures durability in typical industrial environments, while its design prioritizes ease of installation and maintenance. This makes it an ideal choice for applications such as HVAC systems, manufacturing equipment, pumps, and other small motor-driven machinery where reliable overcurrent protection is paramount. By preventing overcurrent faults, the LSSY-L helps maintain operational efficiency and reduces the risk of electrical fires or equipment failure. Trust the Littelfuse LSSY-L for dependable and cost-effective motor protection. UNSPSC Code: 39121617. Country of Origin: US.
  • Economical method for protecting small motors against overcurrent damage.
  • Compatible with Edison-Base plug fuses (TOO, TLO).
  • Compatible with Type S plug fuses (SOO, SLO) with SAO adapter.
  • Designed for industrial and commercial electrical systems.
  • Ensures motor lifespan and minimizes downtime.

Specifications

Application
Industrial
Brand Name
Littelfuse
Special Features
1 FUSE HOLDER, SWITCH, AND SWITCH LIGHT
Sub Brand
LSSY-L Series
Type
Box Cover
Ferraz Shawmut Nylon Fuse Pullers are fully insulated, made of high-dielectric, high impact nylon with no-slip handles and protective finger stops for greater safety when inserting fuses. Yellow color for safety. 600 Volts 600 Amps large size series.

34-003G

Ferraz Shawmut Nylon Fuse Pullers are fully insulated, made of high-dielectric, high impact nylon with no-slip handles and protective finger stops for greater safety when inserting fuses. Yellow color for safety. 600 Volts 600 Amps large size series.
For use with Littelfuse FLNR_ID/FLSR_ID, IDSR, LLNRK/LLSRK and KLNR/KLSR series fuses.

LRU-2661R

For use with Littelfuse FLNR_ID/FLSR_ID, IDSR, LLNRK/LLSRK and KLNR/KLSR series fuses.
Fuse Package, Includes 18 Amp Fuse, Probe Wrench, Hex Wrench, Chemlok 205 Adhesive, Label, Instruction Sheet. Overall Length 6.38 inch, Diameter 1.75 inch.

166PF8-18

Fuse Package, Includes 18 Amp Fuse, Probe Wrench, Hex Wrench, Chemlok 205 Adhesive, Label, Instruction Sheet. Overall Length 6.38 inch, Diameter 1.75 inch.

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.