Littelfuse 354012-GY - 3AG OMNI-BLOK SLDR TERM 12 POLE MTG. A low profile fuse block featuring individual barriers which reinforce the fuse clips while providing greater protection against clip damage and electrical shock. The unique design permits self-alignment of clips to fuse cap. This, plus a one-piece clip/terminal assures low contact resistance. Higher current ratings have been attained using spring brass clips. With the exception of the two-pole unit, multiple pole units may be broken apart to obtain desired number of poles.
Littelfuse

354012-GY

Alternate Item Number: 03540012ZXGY

UPC: 079458107920

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Overview

The Littelfuse 354012-GY OMNI-BLOK fuse block is a 12-pole, low-profile solution for reliable circuit protection, designed specifically for 3AG/AB fuses. This gray fuse block features individual barriers that reinforce the fuse clips, providing enhanced protection against clip damage and electrical shock. The unique design permits self-alignment of clips to the fuse cap, ensuring proper contact and reducing the risk of misalignment during installation. Its one-piece clip/terminal construction guarantees low contact resistance for optimal electrical efficiency and consistent performance. Constructed with spring brass clips, this fuse block supports higher current ratings while maintaining durability and reliability. The modular design allows multiple pole units to be broken apart to achieve the desired number of poles, with the exception of the two-pole unit, which cannot be separated. The Littelfuse 354012-GY is rated for 20A and 300V AC/DC, utilizing phosphor-bronze fuse clips and brass terminals and screws for corrosion resistance and long-term performance. It features a fiber base with 11/64" (4.4mm) diameter mounting holes for secure screw mounting in industrial applications. This fuse block offers a common hot feed to multiple circuits, making it suitable for control panels, motor starters, power distribution systems, and industrial machinery. Manufactured in the US, it adheres to high-quality standards for dependable industrial electrical protection. The fuse block's design minimizes the risk of accidental contact with live components, enhancing safety in high-voltage environments. Its compact, low-profile form factor allows for efficient use of space in crowded control panels or machinery enclosures. The spring brass clips provide consistent pressure on fuse caps, ensuring stable electrical connections even under vibration or mechanical stress. The fiber base material offers excellent dielectric strength and thermal stability, contributing to the overall reliability of the fuse block in demanding industrial conditions.
  • 12-pole, low-profile design for efficient space utilization
  • Individual barriers reinforce fuse clips for enhanced protection
  • Self-aligning clips and one-piece clip/terminal for low contact resistance
  • Rated for 20A and 300V AC/DC with spring brass clips for higher current handling
  • Modular design allows pole configuration adjustment (except 2-pole unit)

Specifications

Application
Curcuit Board
Brand Name
Littelfuse
Standard
RoHS
Sub Brand
354 OMNI-BLOK Series
Package Dimensions (L x W x H)
6 IN x 5 IN x 6 IN
Package Dimensions (L x W x H)
15.24 cm x 12.7 cm x 15.24 cm
Package Weight (Imperial)
1.000 L
Package Weight (Metric)
0.454 kg
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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.