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Littelfuse NH0G20 - EUROPEAN STYLE TYPE NH FUSE 0 G 20A. 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 NH0G20 EUROPEAN STYLE TYPE NH FUSE 0 G 20A. Littelfuse® European style NH fuse links are…

UPC: 079458036206


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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 NH0G20 (SKU: NH0G20) is a European-style Type NH fuse link designed for industrial overcurrent protection in conductors and motors. It is available in NH0 size and offers dual gL-gG and aM characteristics for versatile protection needs. The gL-gG variant provides general protection for cables and installation lines against overloads and short-circuits, while the aM variant is specifically engineered for short-circuit protection of motors and switchgear. Rated for 500V AC and 250V DC operation, the NH0G20 delivers a breaking capacity of 120 kA at 400/500V and 80 kA at 690V, ensuring reliable fault interruption even under extreme conditions. With a power dissipation of 2.3W at rated current, it minimizes energy loss and thermal stress in electrical systems. A critical safety feature is the containment of energy released during fault elimination within the fuse cartridge, preventing degassing and reducing explosion risks. Littelfuse NH fuse links are engineered for long-term reliability, maintaining consistent protection characteristics throughout their service life without degradation. This fuse link is part of the NH00C to NH3 size range, compatible with standard NH fuse bases, making it suitable for motor protection, cable and device protection, and switchgear applications. Trust Littelfuse for dependable overcurrent protection in industrial electrical systems.
  • 20A European-style NH fuse link for industrial overcurrent protection
  • Dual gL-gG (general protection) and aM (motor protection) characteristics
  • Rated 500V AC / 250V DC with 120 kA breaking capacity at 400/500V
  • NH0 size compatible with standard NH fuse bases (NH00C to NH3 range)
  • Power dissipation: 2.3W at rated current; energy containment during faults
  • Power dissipation: 2.3W at rated current
  • Complies with IEC 60269-1 and DIN EN 60269-1 standards
  • Energy released during fault is contained within the cartridge (no degassing)
  • Designed for long-term reliability with no characteristic degradation over time

Specifications

Application
Electronic
Brand Name
Littelfuse
Connection Type
Cartridge-style (for NH fuse bases)
Current Rating
20 A
Material
Fuse Link: Metal (NH style); Cartridge: Ceramic or similar
Mounting Type
NH fuse base compatible
Series
NH Series (European-style Type NH fuse links)
Series
NH
Size
NH0
Size
NH0 size
Special Features
EUROPEAN STYLE
Sub Brand
NH Series
Type
NH Fuses
Voltage Rating
500 VAC / 250 VDC
DIN D Fuse-link gG/Flink Size DII 500VAC 500VDC 20A Color code Blue

J217128

DIN D Fuse-link gG/Flink Size DII 500VAC 500VDC 20A Color code Blue
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.

CY14X51G16

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 0 G 32A. 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.

NH0G32

EUROPEAN STYLE TYPE NH FUSE 0 G 32A. 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 1 CG 25A. 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.

NH1CG25

EUROPEAN STYLE TYPE NH FUSE 1 CG 25A. 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 0 G 40A. 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.

NH0G40

EUROPEAN STYLE TYPE NH FUSE 0 G 40A. 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 0 G 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.

NH0G125

EUROPEAN STYLE TYPE NH FUSE 0 G 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 0 G 160A. 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.

NH0G160

EUROPEAN STYLE TYPE NH FUSE 0 G 160A. 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 0 G 50A. 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.

NH0G50

EUROPEAN STYLE TYPE NH FUSE 0 G 50A. 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 high-speed fuses used for?

High-speed fuses protect power semiconductor devices against short circuits in power conversion applications like inverters, variable-speed drives, UPS, and DC drive systems.

What do Littelfuse medium voltage fuses protect?

E-rated and R-rated medium voltage fuses protect transformers, potential transformers, feeders, and motor circuits.

What are the voltage and amperage ranges for 10 x 38 mm fuses?

10 x 38 mm fuses are available with ratings from 125 to 1000 volts and 1/10 to 30 amperes.

What is the maximum voltage for Littelfuse solar fuses and holders?

Littelfuse offers solar fuses and holders with ratings up to 1500 Vdc for both high-current and low-current applications.

What conditions do Littelfuse feeder protection relays guard against?

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 types of motor protection does Littelfuse offer?

Littelfuse offers voltage monitors, current monitors, and Bluetooth-enhanced overload relays for low and medium voltage motor protection applications.

What is the function of Littelfuse pump controllers?

Pump controllers protect and disable a pump if a hazardous condition arises, with options available for single-phase and three-phase applications.

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.