Littelfuse 0FNY0020S - FUSE HOLDER,TWIST LOCK,UNIVERSAL,AGC,20A. Standard: Constructed of weather resistant nylon. Simple “twist-lock” allows easy fuse removal and replacement. Supplied with 8" loop of 14 gauge black wire and one spring. Use with Glass SFE 4, 6, 71/2, 9, 14, 20, AGA, AGC, AGW and AGX Fuses up to 20 amps. Heavy Duty: Spring loaded heavy duty glass fuseholder includes AGC 30 amp fuse for GM air conditioner, heater blower motors or other heavy duty applications. Supplied with two 4" wire leads of 12 gauge orange wire.
Littelfuse

0FNY0020S

UPC: 079458166316

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Minimum Qty: 20

Multiplier: 20

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Overview

The Littelfuse 0FNY0020S is a professional-grade, 20A twist-lock fuse holder designed for universal AGC fuse applications in automotive and industrial environments. Constructed from weather-resistant nylon, this fuse holder delivers exceptional durability and protection against environmental factors like moisture, dust, and temperature fluctuations. Its intuitive twist-lock mechanism enables quick and easy fuse removal and replacement, minimizing maintenance downtime and reducing operational disruptions. Compatible with a wide range of glass fuses, including SFE 4, 6, 7.5, 9, 14, 20, AGA, AGC, AGW, and AGX types up to 20 amps, the 0FNY0020S provides flexible protection for diverse electrical systems. The standard configuration includes an 8-inch loop of 14-gauge black wire and one spring for straightforward installation. For heavy-duty applications, a spring-loaded glass fuseholder variant is available, often supplied with an AGC 30-amp fuse and two 4-inch wire leads of 12-gauge orange wire, ideal for components like GM air conditioner and heater blower motors. Engineered for demanding environments, the 0FNY0020S ensures reliable electrical system integrity by preventing overcurrent and short circuit damage. Its secure twist-lock design prevents accidental fuse dislodging, enhancing operational safety. The heavy-duty spring-loaded construction guarantees secure fuse retention and optimal electrical connectivity, making it suitable for automotive repairs, industrial machinery, and custom electrical projects. Key specifications include a 20A current rating, weather-resistant nylon construction, and compatibility with multiple glass fuse types. The fuse holder is manufactured in the US by Littelfuse, a leader in circuit protection solutions, ensuring consistent performance and adherence to industry standards.
  • 20A current rating with twist-lock mechanism for secure fuse retention
  • Weather-resistant nylon construction for durability in harsh environments
  • Compatible with SFE 4, 6, 7.5, 9, 14, 20, AGA, AGC, AGW, and AGX glass fuses up to 20A
  • Standard configuration includes 8" 14-gauge black wire and one spring
  • Heavy-duty variant available with AGC 30A fuse and 12-gauge orange wire leads

Specifications

Application
Automotive
Brand Name
Littelfuse
Connection Type
Twist-Lock
Current Rating
20 A
Material
Nylon
Special Features
Industry standard color coding
Sub Brand
ATO Series
Type
Blade Fuse
Package Dimensions (L x W x H)
6 IN x 5 IN x 2 IN
Package Dimensions (L x W x H)
15.24 cm x 12.7 cm x 5.08 cm
Package Weight (Imperial)
0.250 L
Package Weight (Metric)
0.113 kg
HRC MISC Class C Fuse 600 Volts 15 Amps ESK series.

ESK15

HRC MISC Class C Fuse 600 Volts 15 Amps ESK series.

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.