Littelfuse H345933A - ACS SHOCK-SAFE FUSEHLDR. 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.
Littelfuse

H345933A

Alternate Item Number: 03450933H

UPC: 079458111880

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Minimum Qty: 100

Multiplier: 100

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Overview

The **Littelfuse ACS SHOCK-SAFE Fuse Holder (H345933A)** is a high-performance, panel-mount solution engineered to eliminate electrical shock hazards while meeting stringent **IEC 60065** and **IEC 60127** standards. Designed for professionals who demand reliability, safety, and versatility, this fuse holder combines robust construction with flexible configurations to address a wide range of industrial and commercial applications. Whether you're working in power distribution, control panels, or electronic equipment, the ACS SHOCK-SAFE Fuse Holder delivers unmatched protection and operational stability. This versatile fuse holder offers **five distinct fuse holder types**, ensuring compatibility with diverse fuse sizes and ratings. The **anti-tease feature** prevents accidental circuit interruption when the knob is depressed, safeguarding against unintended downtime and equipment damage. With **two knob styles** available—**screwdriver slot** and **finger-grip**—users can select the most ergonomic and application-specific option. For environments where moisture or liquid exposure is a concern, the **drip-proof option** (available on the screwdriver slot knob style) provides an added layer of durability, making it ideal for outdoor or industrial settings. The ACS SHOCK-SAFE Fuse Holder supports **two terminal choices**, allowing for seamless integration into existing systems. This flexibility reduces inventory complexity, as a single part number can serve multiple configurations, streamlining procurement and logistics. Whether you require **screw terminals** for high-current applications or **quick-connect terminals** for rapid installations, this fuse holder adapts to your needs without compromising performance. **Key Applications & Industries:** - **Power Distribution Systems:** Ensures safe and reliable fuse replacement in switchgear and distribution panels. - **Industrial Control Panels:** Protects sensitive electronics from overcurrent while maintaining operator safety. - **Telecommunications Equipment:** Meets stringent safety standards for network infrastructure. - **Automotive & Transportation:** Provides shock-safe fuse holding in vehicle electrical systems and railway applications. - **Renewable Energy Systems:** Ideal for solar inverters and wind power distribution units where IEC compliance is critical. **Why Choose Littelfuse?** Littelfuse is a global leader in circuit protection, with over a century of innovation and expertise. The company’s **ACS SHOCK-SAFE Fuse Holder** exemplifies its commitment to **safety, reliability, and engineering excellence**. Professionals in industrial, commercial, and residential sectors trust Littelfuse for solutions that meet or exceed regulatory standards, ensuring peace of mind in critical applications. **Installation & Compatibility Considerations:** - **Panel-Mount Design:** Easily integrates into standard enclosures with secure mounting options. - **IEC Compliance:** Meets **IEC 60065** (safety requirements for audio/video equipment) and **IEC 60127** (fuse holders for miniature fuses), making it suitable for global markets. - **Temperature & Environmental Resistance:** Built to withstand harsh conditions, including vibration, dust, and moisture (where drip-proof option is selected). - **Tool-Free Replacement:** The anti-tease feature ensures fuse changes are quick and error-free, reducing maintenance time. For engineers, technicians, and procurement specialists seeking a **high-quality, compliant, and versatile fuse holder**, the **Littelfuse ACS SHOCK-SAFE Fuse Holder (H345933A)** is the optimal choice. Its **modular design, safety certifications, and broad compatibility** make it a cost-effective solution for reducing inventory while maximizing operational flexibility. Trust Littelfuse to deliver the protection your systems deserve.
  • IEC 60065 & IEC 60127 compliant for electrical shock protection
  • Anti-tease feature prevents accidental circuit interruption
  • Five fuse holder types with two knob styles (screwdriver slot & finger-grip)
  • Drip-proof option available for screwdriver slot knob style
  • Two terminal choices for flexible installation (screw & quick-connect)

Specifications

Brand Name
Littelfuse
Connection Type
Screw Terminal, Quick-Connect
Mounting Type
Panel-Mount
Series
ACS SHOCK-SAFE
Special Features
See in the web sheet
Standard
UL Listed CSA
Sub Brand
Shock-Safe
Type
Panel Fuseholder
Package Dimensions (L x W x H)
1.25 IN x 0.25 IN x 0.25 IN
Package Dimensions (L x W x H)
3.175 cm x 6.35 mm x 6.35 mm
Package Weight (Imperial)
0.150 L
Package Weight (Metric)
0.068 kg
SHOCK-SAFE FUSEHLDR FOR 5X20MM TYPE FUSE. 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.

345121A

SHOCK-SAFE FUSEHLDR FOR 5X20MM TYPE FUSE. 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.
P MOUNT HOLDER H-PACK 4A L WASH. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.

H342004L

P MOUNT HOLDER H-PACK 4A L WASH. Panel Mount Enclosed Fuse Holders for 3AG/AB Fuses.
ACS INTL SHOCK-SAFE 3AG FUSEHLDR. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses. With 1/4" straight NEMA/DIN Quick Connect Terminal.

H3453RF8A

ACS INTL SHOCK-SAFE 3AG FUSEHLDR. International Shock-Safe Panel Mount Fuseholder for 3AG/3AB Fuses. With 1/4" straight NEMA/DIN Quick Connect Terminal.
PANELMOUNT SHKSAFE FSEHLDR 3AG FUSE RF4A. 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.

3453RF4A

PANELMOUNT SHKSAFE FSEHLDR 3AG FUSE RF4A. 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 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 3AG FUSE LF8A. 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.

3453LF8A

PANELMOUNT SHKSAFE FSEHLDR 3AG FUSE LF8A. 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.
PANELMOUNT SHKSAFE FSEHLDR 2AG FUSE LS8A. 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.

3452LS8A

PANELMOUNT SHKSAFE FSEHLDR 2AG FUSE LS8A. 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 3AG FUSE RF2A. 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.

3453RF2A

PANELMOUNT SHKSAFE FSEHLDR 3AG FUSE RF2A. 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 3AG 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.

3453LS7A

PANELMOUNT SHKSAFE FSEHLDR 3AG 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.
PANELMNT SHKSAFE FUSHLDR 5X20MM FUS RF2. 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.

3455RF2

PANELMNT SHKSAFE FUSHLDR 5X20MM FUS RF2. 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 3AG FUSE RF3A. 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.

3453RF3A

PANELMOUNT SHKSAFE FSEHLDR 3AG FUSE RF3A. 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.