Littelfuse H312012P - FAST-ACTING TYPE GLASS H-PACK 12A. The 3AG Fast-Acting Fuse solves a broad range of application requirements while offering reliable performance and cost-effective circuit protection. Features: In accordance with UL Standard 248-14. Available in cartridge and axial lead format and with various forming dimensions. RoHS compliant and Lead-free.
Littelfuse

H312012P

Alternate Item Number: 0312012.HXP

UPC: 079458100006


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Minimum Qty: 100

Multiplier: 100

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Overview

The Littelfuse H312012P is a high-performance 3AG fast-acting fuse designed to provide robust and cost-effective circuit protection for a diverse array of industrial and electronic applications. Engineered by Littelfuse, a recognized leader in circuit protection solutions, this 12A fuse offers reliable performance and peace of mind for critical systems. Its fast-acting characteristic ensures rapid interruption of fault currents, safeguarding sensitive components and preventing cascading failures. This fuse adheres strictly to UL Standard 248-14, a testament to its quality and safety compliance, making it suitable for demanding environments where reliability is paramount. The H312012P features a Type G Glass H-Pack construction, offering excellent visibility into the fuse element for quick inspection and diagnostics. This design, combined with its fast-acting nature, makes it an ideal choice for applications requiring immediate response to overcurrent conditions. The fuse is available in both cartridge and axial lead formats, providing significant flexibility for integration into various equipment designs and manufacturing processes. Whether you require a standard cartridge fuse for a power supply or an axial lead version for direct board mounting, the 3AG series accommodates a wide range of installation needs. Environmental responsibility is also a key consideration with the Littelfuse H312012P. It is fully RoHS compliant and lead-free, aligning with global environmental regulations and promoting sustainable manufacturing practices. This commitment to eco-friendly design does not compromise its protective capabilities; instead, it enhances its suitability for modern industrial equipment and consumer electronics. Key benefits and features of the Littelfuse H312012P include: * **Fast-Acting Protection:** Rapidly interrupts overcurrents to protect sensitive electronics. * **UL 248-14 Compliance:** Meets rigorous safety and performance standards for industrial use. * **Versatile Formats:** Available in cartridge and axial lead options for diverse installation requirements. * **RoHS Compliant & Lead-Free:** Environmentally responsible design for modern manufacturing. * **Cost-Effective Solution:** Delivers reliable circuit protection without excessive cost. This Littelfuse 3AG fuse is an indispensable component for safeguarding industrial machinery, power supplies, control panels, telecommunications equipment, and a multitude of other electronic devices. Its consistent performance and adherence to industry standards make it a trusted choice for engineers and technicians seeking dependable circuit protection. The 12A rating is suitable for a broad spectrum of applications where moderate current loads are expected, and rapid fault interruption is a critical safety requirement. By choosing the Littelfuse H312012P, you are investing in a proven solution that ensures operational integrity and extends the lifespan of your valuable equipment.
  • Fast-acting interruption for immediate overcurrent protection.
  • UL Standard 248-14 compliant for industrial safety and reliability.
  • Available in versatile cartridge and axial lead formats.
  • RoHS compliant and lead-free for environmental sustainability.
  • Cost-effective solution for broad application requirements.

Specifications

Application
NA
Brand Name
Littelfuse
Connection Type
Cartridge/Axial Lead
Current Rating
12 A
Material
Glass
Series
3AG Fast-Acting
Series
3AG series
Size
3AG
Special Features
Available in cartridge and axial lead format
Standard
UL Standard 248-14
Sub Brand
312 Series
Type
Fast Acting Fuse
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

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.