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Overview
- Watertight O-ring seal for IP67-rated protection in high-humidity/corrosive environments
- Fiberglass-reinforced polymer body resists impact and outperforms phenolic alternatives
- Ultrasonically-welded terminals prevent leaks and ensure maximum mechanical strength
- Accommodates stranded or solid copper conductors with crimp terminations
- Single-pole design for 600V applications; available in single and two-pole configurations
Specifications
Application | Street Lighting |
Brand Name | Littelfuse |
Special Features | Watertight |
Sub Brand | LEB Series |
Type | Fuseholder |

US6JPAK
Mersen UltraSafe modular class J fuseholders introduce a new level of safety and ease for installing or replacing class J fuses. UltraSafe fuseholders qualify as finger-safe to an IP20 grade of protection under IEC standards. The US3J accommodates 30A class J or IEC cylindrical 22x58mm fuses. The US6J accommodates 60A class J. UltraSafe fuseholders are available in compact 1, 2, or 3-pole units, with or without visual blown fuse indication. Multiple poles can be assembled in the field by ordering and installing pin-tie handles. US3J and US6J fuseholders can be mounted on 35mm DIN-rail. Body material is a tough and durable polyamide. 60A size pin tie kit series.
LEXAA
The Littelfuse 600 V in-line watertight fuse holders are the ideal answer for all high humidity and corrosive environments where fuses are required. Available in both breakaway and non-breakaway, single and double pole versions, these fuse holders allow maximum flexibility for any application.
9T58K0000G24
Unclassified Transformrs. Small Core & Cl Tran. 9t58 Ip C&C Kit Xfrmr. Fuse Kits For EncapsulTED Xfmrs. 0000G24Frequently Asked Questions
What are UL Class Fuses used for?
UL Class Fuses protect electrical systems and personnel. They include innovative features like indication to improve productivity and system safety.
What do Littelfuse high-speed fuses protect?
Littelfuse high-speed fuses protect critical power semiconductor devices from short circuits. They are used in power conversion applications like inverters, variable-speed drives, UPS, and DC drive systems.
What applications do medium voltage fuses protect?
Medium voltage fuses protect transformers, potential transformers, feeders, and motor circuits. They are available in various current, voltage, interrupting rating, and mounting configurations.
What are the voltage and current ratings for 10x38 mm fuses?
10x38 mm fuses offer compact supplemental protection with ratings from 125 to 1000 volts and 1/10 to 30 amperes. They come in time-delay, fast-acting, board mount, or solar versions.
What is the maximum voltage for Littelfuse solar fuses?
Littelfuse offers solar fuses and holders up to 1500 Vdc. These are suitable for both high-current and low-current photovoltaic applications.
What are the key features of Littelfuse fuse blocks?
Littelfuse fuse blocks and holders are chosen for their compact designs, indication feature, and flexibility for DIN-rail mounting.
How do POWR-BLOKS power distribution blocks enhance safety?
POWR-BLOKS power distribution blocks are touch-safe and have available covers. This enhances safety by reducing the risk of accidental contact during cable splicing and power distribution.
What are pre-engineered fusible switches designed for?
Pre-engineered fusible switches and panels are UL Listed, pre-built, and customizable. They are designed to meet NEC® coordination requirements, ideal for the Construction Market.
What is the purpose of the Industrial Shock-Block® GFCI?
The Industrial Shock-Block® GFCI is a special-purpose GFCI designed for people protection in industrial facilities. It meets UL Standard 943C Class C and Class D.
What are the benefits of high-resistance grounding?
High-resistance grounding limits point-of-fault damage and eliminates arc-flash hazards and transit overvoltages associated with ground faults. NGR monitors detect failures in the grounding circuit.
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.


