Littelfuse NH3G425 - EUROPEAN STYLE TYPE NH FUSE 3 G 425A. Littelfuse® European style NH fuse links are designed for the protection of conductors and motors. The gL-gG characteristic fuse links are generally used to protect cables and installation lines from overloads and short-circuits. The aM characteristic fuse links are used for the short-circuit protection of motors and switchgear. They are available in NH00C to NH3 sizes up to 630 amperes.
Littelfuse

NH3G425

UPC: 079458036626


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Overview

The Littelfuse NH3G425 (SKU: NH3G425) is a European-style NH fuse link rated at 425A, designed for reliable overload and short-circuit protection in industrial electrical systems. Part of Littelfuse’s NH3 size range (up to 630A), this fuse link meets IEC 60269 standards for cable and motor protection, making it ideal for manufacturing, infrastructure, and switchgear applications. Key specifications include a rated voltage of 500V AC (250V DC) and power dissipation of 34W at 425A. The NH3G425 features a double indicator and live gripping lugs for clear visual status indication and secure handling during installation or replacement. The 70mm width ensures compatibility with IEC-compliant fuse bases and switchgear, enabling seamless integration into existing systems. Two primary fuse characteristics are available: - **gL-gG**: For general applications, protecting cables and installation lines from overloads and short-circuits. Complies with IEC 60269 standards for cable protection. - **aM**: For motor and switchgear short-circuit protection, offering rapid response to fault conditions to prevent damage to sensitive equipment. Manufactured in France and distributed globally, the NH3G425 meets international safety and performance standards. Its robust construction delivers long-term reliability in harsh industrial environments, reducing downtime and maintenance costs. Trust Littelfuse’s legacy of quality in electrical protection solutions for critical applications.
  • Rated current: 425A with 500V AC (250V DC) voltage rating
  • Power dissipation: 34W at 425A
  • Width: 70mm for IEC-compliant fuse bases
  • Double indicator and live gripping lugs for secure handling
  • Available in gL-gG (general protection) and aM (motor protection) characteristics

Specifications

Application
Electronic
Brand Name
Littelfuse
Connection Type
Live gripping lugs
Current Rating
425A
Mounting Type
IEC-compliant fuse bases
Series
NH
Series
NH3
Size
NH3
Size
NH3 (70mm width)
Special Features
EUROPEAN STYLE
Sub Brand
NH Series
Type
NH Fuses
Voltage Rating
500 V AC (250 V DC)
EUROPEAN STYLE TYPE NH FUSE 3 M 500A. Littelfuse® European style NH fuse links are designed for the protection of conductors and motors. The gL-gG characteristic fuse links are generally used to protect cables and installation lines from overloads and short-circuits. The aM characteristic fuse links are used for the short-circuit protection of motors and switchgear. They are available in NH00C to NH3 sizes up to 630 amperes.

NH3M500

EUROPEAN STYLE TYPE NH FUSE 3 M 500A. Littelfuse® European style NH fuse links are designed for the protection of conductors and motors. The gL-gG characteristic fuse links are generally used to protect cables and installation lines from overloads and short-circuits. The aM characteristic fuse links are used for the short-circuit protection of motors and switchgear. They are available in NH00C to NH3 sizes up to 630 amperes.
DIN D Fuse-link gG Size DV 500VAC 500VDC 200A Color code Blue

W219186

DIN D Fuse-link gG Size DV 500VAC 500VDC 200A Color code Blue

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.