Littelfuse H3452LS1L - ACS INTL SHOCK-SAFE 2AG HLDR W/LOCKWASHR. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.
Littelfuse

H3452LS1L

UPC: 079458981001

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Specification Sheet

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Overview

The **Littelfuse H3452LS1L** is a **Shock-Safe International Panel Mount Fuseholder** engineered for **2AG (5x20mm) fuses**, delivering unmatched reliability and safety in high-demand industrial environments. Designed with a **secure lockwasher** for stable panel mounting, this fuseholder ensures a firm, vibration-resistant connection that prevents accidental dislodging or loosening over time. As part of Littelfuse’s globally trusted **Shock-Safe series**, the H3452LS1L meets stringent international safety standards, making it an ideal choice for applications where electrical shock hazards must be minimized. This fuseholder is specifically engineered for **panel-mount installations**, providing a robust and accessible solution for protecting sensitive electrical circuits. Its **shock-safe design** reduces the risk of accidental contact with live components, a critical feature in industrial settings where maintenance personnel frequently interact with electrical panels. The **lockwasher** ensures a tight fit, eliminating the need for additional hardware while maintaining a secure hold even under mechanical stress or thermal cycling. The **Littelfuse H3452LS1L** is widely used across multiple industries, including **power distribution, telecommunications, industrial machinery, and renewable energy systems**, where reliable fuse protection is non-negotiable. Its **compact 2AG form factor** allows for efficient space utilization in control panels, junction boxes, and distribution boards. Professionals in these fields rely on Littelfuse’s reputation for **high-quality, durable components**—a brand synonymous with innovation and safety in electrical protection. Key applications include: - **Industrial control panels** where operator safety is paramount - **Telecom infrastructure** requiring surge and fault protection - **Renewable energy systems** (solar inverters, wind turbines) for circuit isolation - **Motor control centers** to safeguard against overloads and short circuits - **HVAC systems** in commercial and industrial buildings Installation is straightforward, with **pre-drilled mounting holes** and a **snap-in or screw-in design** compatible with standard panel thicknesses. The fuseholder’s **high-temperature thermoplastic housing** resists degradation from heat, chemicals, and UV exposure, ensuring long-term performance in harsh conditions. Littelfuse’s **rigorous testing protocols** guarantee compliance with **IEC, UL, and other global safety standards**, providing engineers and technicians with confidence in its reliability. Choosing the **H3452LS1L** means selecting a **time-tested solution** from a manufacturer with over a century of expertise in electrical protection. Littelfuse’s **global distribution network** and **technical support** ensure quick availability and expert guidance, whether for prototyping or large-scale deployments. For professionals who demand **durability, safety, and ease of installation**, the H3452LS1L stands as a benchmark in **2AG fuseholder technology**. Upgrade your panel designs with a fuseholder that prioritizes **safety, stability, and longevity**—choose the **Littelfuse H3452LS1L** for uncompromising circuit protection.
  • Shock-Safe design reduces electrical hazard risks in panel installations
  • Secure lockwasher ensures stable mounting and vibration resistance
  • Compatible with 2AG (5x20mm) fuses for versatile circuit protection
  • High-temperature thermoplastic housing for durability in harsh environments
  • Meets international safety standards (IEC, UL) for global compliance

Specifications

Brand Name
Littelfuse
Connection Type
Screw Terminal
Material
Thermoplastic
Mounting Type
Panel Mount with Lockwasher
Series
Shock-Safe International
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 HS4A. International Shock-Safe Panel Mount Fuseholder for 2AG Fuses.

H3452HS4A

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