Littelfuse 3455HS1A - PANELMNT SHKSAFE FUSHLDR 5X20MM FUS HS1A. Designed to eliminate the possibility of electrical shock, as defined in IEC standards 65 and 257. Shock-Safe fuseholders feature a low profile body, fingergrip knob and anti-tease feature that eliminates circuit interruptionwhen knob is accidentally depressed.
Littelfuse

3455HS1A

Alternate Item Number: 03455HS1X

UPC: 079458004359


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Overview

The Littelfuse 3455HS1A is a panel-mount, shock-safe fuseholder specifically designed for 5x20mm fuses. Engineered to meet stringent IEC standards 65 and 257, this fuseholder actively eliminates the possibility of electrical shock, a critical safety requirement in industrial and commercial electrical systems. Its design prioritizes operator safety and operational continuity. The fuseholder features a low-profile body, which is advantageous for installation in space-constrained panel environments. For enhanced user interaction and safety, it includes a finger-grip knob that allows for easy and secure fuse access. A key operational benefit is the integrated anti-tease feature. This mechanism prevents accidental circuit interruption that could occur if the knob is inadvertently depressed during routine operation or maintenance procedures, thereby ensuring uninterrupted system function. Manufactured in the US, the Littelfuse 3455HS1A (SKU: 3455HS1A) offers dependable performance and adherence to international safety protocols. This fuseholder is an ideal choice for applications demanding robust fuse protection, operator safety, and efficient fuse management within panel-mounted configurations. Its compliance with IEC standards 65 and 257 underscores its commitment to electrical safety.
  • Designed to eliminate electrical shock per IEC standards 65 and 257
  • Accommodates 5x20mm fuses
  • Panel-mount design for easy integration
  • Features a finger-grip knob for secure operation
  • Anti-tease feature prevents accidental circuit interruption

Specifications

Mounting Type
Panel Mount
Mounting Type
Panel-Mount
Series
Shock-Safe
Series
PANELMNT SHKSAFE FUSHLDR
Series
3455HS
Series
PANELMNT SHKSAFE
Size
5x20mm
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Frequently Asked Questions

What UL standard does the Shock-Block GFCI meet?

It meets UL Standard 943C Class C and Class D, designed for people protection in industrial facilities.

What are the voltage and current ratings for 10 x 38 mm fuses?

They have ratings from 125 to 1000 volts and 1/10 to 30 amperes.

What is the maximum voltage for Littelfuse solar fuses?

Littelfuse offers solar fuses and holders up to 1500 Vdc for both high-current and low-current applications.

What are the benefits of high-resistance grounding?

It limits point-of-fault damage and eliminates arc-flash hazards and transit overvoltages associated with ground faults.

How do arc-flash protection relays work?

They detect developing arc-flash incidents and send a trip signal to interrupt power before significant damage occurs.

What do ground-fault protection relays detect?

They detect the breakdown of insulation resistance caused by moisture, vibration, chemicals, or dust.

What do UL Class fuses protect?

UL Class fuses protect electrical systems and personnel. They also feature indication for improved productivity and safety.

What do high-speed fuses protect?

High-speed fuses protect critical power semiconductor devices against short circuits in power conversion applications.

What applications use high-speed fuses?

They are used in power conversion applications such as inverters, variable-speed drives, UPS, and DC drive systems.

What do medium voltage fuses protect?

Medium voltage fuses protect transformers, potential transformers, feeders, and motor circuits.

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.