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Littelfuse NH3G630 - EUROPEAN STYLE TYPE NH FUSE 3 G 630A. 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 NH3G630 EUROPEAN STYLE TYPE NH FUSE 3 G 630A. Littelfuse® European style NH fuse links are…

UPC: 079458036640


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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Littelfuse NH3G630 is a high-capacity European style Type NH fuse link, specifically designed for the robust protection of conductors, motors, and switchgear in industrial and commercial electrical systems. This NH3 size fuse link operates with a gG characteristic, making it ideal for general protection of cables and installation lines against both overloads and short-circuits. It is also suitable for applications requiring an aM characteristic for specialized short-circuit protection of motors and switchgear. With a rated current of 630A and available in NH3 size, it ensures compatibility with standard NH fuse bases and holders. The Littelfuse NH3G630 is rated for 400V AC and 500V AC, meeting IEC standards for low-voltage fuse systems and offering high interrupting capacity for reliable performance. Key specifications include a power dissipation of 39W at 630A, a width of 70mm, and a weight of 1.05kg. This fuse link features double indicator and isolated gripping lugs for enhanced safety and ease of use. Manufactured by Littelfuse, a trusted name in electrical protection, the NH3G630 delivers dependable safety and compliance with stringent industry standards. It is an essential component for safeguarding industrial machinery, power distribution networks, and critical infrastructure from damage caused by overcurrents, ensuring operational continuity and longevity. The NH3G630 is manufactured in France (FR).
  • Littelfuse NH3G630 630A European style NH fuse link
  • Designed for conductor, motor, and switchgear protection
  • gG characteristic for general cable/line protection
  • aM characteristic for motor/switchgear short-circuit protection
  • NH3 size, 400V AC / 500V AC rated voltage
  • Manufactured by Littelfuse, a leader in electrical protection
  • IEC-compliant for industrial and commercial applications

Specifications

Application
Electronic
Brand Name
Littelfuse
Current Rating
630 A
Series
NH
Size
NH3
Special Features
EUROPEAN STYLE
Sub Brand
NH Series
Type
NH Fuses
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 D0 Fuse-link Neozed gG Size D03 400VAC 250VDC 100A Color code Red Packaging quantity 10

N212647

DIN D0 Fuse-link Neozed gG Size D03 400VAC 250VDC 100A Color code Red Packaging quantity 10
Littelfuse fast-acting French Cylindrical (gL-gG) fuses are used for the protection of cables against short circuits. Time-lag (aM) fuses are used for protection of motors.

CY14X51M8

Littelfuse fast-acting French Cylindrical (gL-gG) fuses are used for the protection of cables against short circuits. Time-lag (aM) fuses are used for protection of motors.
EUROPEAN STYLE TYPE NH FUSE 2 M 250A. 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.

NH2M250

EUROPEAN STYLE TYPE NH FUSE 2 M 250A. 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 fast-acting French Cylindrical (gL-gG) fuses are used for the protection of cables against short circuits. Time-lag (aM) fuses are used for protection of motors.

CY14X51M10

Littelfuse fast-acting French Cylindrical (gL-gG) fuses are used for the protection of cables against short circuits. Time-lag (aM) fuses are used for protection of motors.
EUROPEAN STYLE TYPE NH FUSE 2 M 300A. 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.

NH2M300

EUROPEAN STYLE TYPE NH FUSE 2 M 300A. 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.
EUROPEAN STYLE TYPE NH FUSE 00 M 125A. 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.

NH00M125

EUROPEAN STYLE TYPE NH FUSE 00 M 125A. 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.
EUROPEAN STYLE TYPE NH FUSE 3 G 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.

NH3G500

EUROPEAN STYLE TYPE NH FUSE 3 G 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.

Frequently Asked Questions

What types of fuses does Littelfuse offer for industrial applications?

Littelfuse offers UL Class fuses, high-speed fuses, medium voltage fuses, 10 x 38 mm fuses, and solar fuses for industrial applications.

What are Littelfuse fuse blocks and holders known for?

Littelfuse fuse blocks and holders are selected for their compact designs, indication features, and the flexibility of DIN-rail mounting.

What is the purpose of Littelfuse POWR-BLOKS distribution blocks?

POWR-BLOKS power distribution blocks offer a safe and convenient way for splicing cables and managing power distribution requirements within panels and systems.

What protection do Littelfuse feeder protection relays provide?

Feeder protection relays protect circuits from overcurrent, ground faults, phase loss, overload, and other detrimental conditions.

What is the Industrial Shock-Block® GFCI designed for?

The Industrial Shock-Block® GFCI is designed for people protection in industrial facilities and meets UL Standard 943C Class C and Class D.

How do Littelfuse arc-flash protection relays work?

Arc-flash relays detect a developing arc-flash incident and send a trip signal to interrupt power before significant damage occurs.

What kind of protection do Littelfuse voltage monitors offer?

Voltage monitors provide protection against both supply line and load side faults when the motor is running.

What functions can Littelfuse timers and flashers control?

Timers and flashers can delay starting and stopping loads, and control cycling and sequencing of motors, pumps, compressors, heaters, and lighting.

What is Littelfuse University (LFU)?

LFU is an award-winning resource offering in-depth training courses and quick references about Littelfuse products, programs, and tools.

Where can I find technical information and cross-reference tools?

Technical information and cross-reference tools are available at Littelfuse.com/technical-resources.

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.