Littelfuse H3452HS4A - ACS INTL SHOCK-SAFE 2AG FUSEHLDR HS4A. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.
Littelfuse

H3452HS4A

UPC: 079458980905

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Specification Sheet

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Multiplier: 100

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Overview

The **Littelfuse H3452HS4A** is a **Shock-Safe Panel Mount Fuseholder** engineered for **2AG (5x20mm) fuses**, delivering unmatched reliability and safety in industrial electrical systems. Designed to meet stringent international safety standards, this fuseholder is a critical component for applications where electrical shock protection and stable performance are non-negotiable. Whether deployed in control panels, power distribution units, or machinery protection circuits, the H3452HS4A ensures compliance with global regulations while providing a robust and durable solution for professionals who demand precision and dependability. **Key Features and Benefits:** - **Shock-Safe Design:** The H3452HS4A is specifically engineered to **prevent accidental contact with live components**, reducing the risk of electrical shock in high-voltage environments. This feature is essential for compliance with **IEC 60947-1** and other international safety standards, making it ideal for use in industrial control panels, switchgear, and automation systems. - **Panel-Mount Durability:** Constructed from **high-impact thermoplastic materials**, this fuseholder is built to withstand harsh industrial conditions, including vibration, temperature fluctuations, and exposure to dust or moisture. Its **panel-mount design** ensures a secure fit, minimizing the risk of dislodgment during operation or maintenance. - **Compatibility and Versatility:** The H3452HS4A is designed to accommodate **2AG (5x20mm) fuses**, a widely used fuse size in industrial applications. This compatibility makes it a versatile choice for engineers and technicians who need a standardized solution across multiple projects or systems. - **Easy Installation and Maintenance:** Featuring a **screw-terminal design**, the fuseholder allows for quick and tool-free installation, reducing downtime during setup or fuse replacement. The **clear, color-coded markings** on the holder simplify identification and maintenance, ensuring that technicians can quickly locate and service the fuse without risking errors. - **Trusted Manufacturer Reliability:** Littelfuse is a **global leader in circuit protection**, with decades of expertise in designing and manufacturing components that meet the rigorous demands of industrial applications. The H3452HS4A is backed by Littelfuse’s reputation for **quality, innovation, and compliance**, giving professionals confidence in its performance and longevity. **Typical Applications:** The **Littelfuse H3452HS4A** is a go-to solution for a wide range of industrial and commercial applications, including: - **Industrial Control Panels:** Used in PLCs, motor controllers, and automation systems where shock protection and reliable fuse mounting are critical. - **Power Distribution Units:** Ideal for protecting sensitive electronics in data centers, telecom systems, and renewable energy installations. - **Machinery and Equipment:** Deployed in manufacturing lines, CNC machines, and robotic systems to safeguard against overcurrent conditions. - **Building Automation:** Ensures safety in HVAC systems, lighting controls, and security systems where electrical shock hazards must be minimized. **Why Choose the H3452HS4A?** When selecting a fuseholder for industrial applications, professionals prioritize **safety, durability, and ease of use**. The **Littelfuse H3452HS4A** excels in all three areas, offering a **shock-safe design** that meets international standards, a **rugged construction** that withstands harsh environments, and a **user-friendly installation** process that saves time and reduces errors. Whether you’re designing a new system or upgrading an existing one, this fuseholder provides the **peace of mind** that comes from using a trusted, high-quality component from a leader in circuit protection. For engineers, technicians, and procurement specialists seeking a **reliable, compliant, and long-lasting fuseholder**, the **Littelfuse H3452HS4A** is the smart choice. Its combination of **safety, durability, and versatility** makes it an indispensable component in modern industrial electrical systems.
  • Shock-safe design prevents accidental electrical contact
  • Panel-mount durability for harsh industrial environments
  • Compatible with 2AG (5x20mm) fuses for versatile applications
  • Easy installation with screw-terminal design and clear markings
  • Trusted Littelfuse quality with global compliance standards

Specifications

Brand Name
Littelfuse
Connection Type
Screw Terminal
Material
High-impact thermoplastic
Mounting Type
Panel Mount
Series
H3452HS4A
Series
H3452
Size
2AG
Size
2AG (5x20mm)
Special Features
See in the web sheet
Standard
UL Listed CSA
Sub Brand
Shock-Safe
Type
Panel Fuseholder
Littelfuse advocates the use of LET series fuse holders with a permanently installed solid neutral in high humidity and corrosive environments where a watertight 600V product is required. The LET series features an integrated lug on the line side of the circuit, this ensures that there is nothing protruding from the load side of the product that could allow for an unsafe electrical touch point.

LETBB

Littelfuse advocates the use of LET series fuse holders with a permanently installed solid neutral in high humidity and corrosive environments where a watertight 600V product is required. The LET series features an integrated lug on the line side of the circuit, this ensures that there is nothing protruding from the load side of the product that could allow for an unsafe electrical touch point.
PANEL MOUNT SHOCK-SAFE FUSEHOLDER 603. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.

345603A

PANEL MOUNT SHOCK-SAFE FUSEHOLDER 603. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.
ACS INTL SHOCK-SAFE 2AG FUSEHLDR RF3A. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.

H3452RF3A

ACS INTL SHOCK-SAFE 2AG FUSEHLDR RF3A. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.
ACS INTL SHOCK-SAFE 2AG FUSEHLDR LS1A. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.

H3452LS1A

ACS INTL SHOCK-SAFE 2AG FUSEHLDR LS1A. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.
ACS INTL SHOCK-SAFE 2AG HLDR W/LOCKWASHR. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.

H3452LS1L

ACS INTL SHOCK-SAFE 2AG HLDR W/LOCKWASHR. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.
PANEL MOUNT SHOCK-SAFE FUSEHOLDER 611. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.

345611-010

PANEL MOUNT SHOCK-SAFE FUSEHOLDER 611. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.
SHOCK-SAFE FUSEHOLDER FOR 3AG TYPE FUSES. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.

345101A

SHOCK-SAFE FUSEHOLDER FOR 3AG TYPE FUSES. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.
PANEL MOUNT SHOCK-SAFE FUSEHOLDER 613. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.

345613-010

PANEL MOUNT SHOCK-SAFE FUSEHOLDER 613. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.
ACS INTL SHOCK-SAFE 3AG FHLDR W/2 WASHRS. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.

H3453HS7LN

ACS INTL SHOCK-SAFE 3AG FHLDR W/2 WASHRS. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses.
ACS SHOCK-SAFE FUSEHLDR 903A. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.

H345903A

ACS SHOCK-SAFE FUSEHLDR 903A. Designed to eliminate electrical shock as defined by IEC standards 60065 and 60127, these panel-mount fuses holders offer a wide variety of options. This allows for inventory reduction and versatility. Anti-tease feature eliminates circuit interruption when knob is accidentally depressed Five fuse holder types for maximum flexibility. Two knob styles— screwdriver slot and fingergrip. Drip proof option available on screwdriver slot knob style. Two terminal choices depending on application.
PANELMOUNT SHKSAFE FSEHLDR 2AG FUSE LS7A. 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.

3452LS7A

PANELMOUNT SHKSAFE FSEHLDR 2AG FUSE LS7A. 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.
PANELMOUNT SHKSAFE FSEHLDR 2AG FUSE LS3A. 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.

3452LS3A

PANELMOUNT SHKSAFE FSEHLDR 2AG FUSE LS3A. 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.

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.