Mersen J1011479 - Cylindrical fuse-link aM Size 14x51 IEC 690VAC 40A
Mersen

J1011479

Alternate Item Number: FR14AM69V40

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Overview

The Mersen J1011479 is a high-reliability cylindrical fuse-link designed for industrial electrical protection. This aM type fuse-link, measuring 14x51mm, is rated for 690VAC and 40A, providing partial range protection for electrical devices against destructive short-circuit currents. Its design ensures high current limiting and low thermal let-through values, effectively cutting off currents exceeding 6.3 times the nominal motor current until the maximum breaking capacity of 120 kA is reached. Constructed with a ceramic body and silver-plated contacts, this fuse-link offers robust technical performance. It is primarily utilized for the protection of motor circuit switchgear in industrial applications. The Mersen aM and gG fuse-links series covers a broad spectrum of physical sizes and ampere ratings for 400, 500, and 690VAC applications. Specifically, the 14x51mm size is available with an optional striker to activate an auxiliary contact. Mersen's commitment to advanced technology and manufacturing processes ensures the dependable technical performance of this fuse-link. SKU: J1011479. Country of Origin: FR.
  • Mersen aM type cylindrical fuse-link
  • Rated for 690VAC and 40A
  • Size: 14x51mm
  • 120 kA rated breaking capacity
  • Ceramic body with silver-plated contacts

Specifications

AC Voltage Rating
690 V
Amperage Rating
40 A
Application
aM type for protection of motors, transformers and other loads with in-rush currents.
Body Material
Ceramic
Brand Name
Mersen
Connection
Ferrule
Connection Material
Silver-Plated Copper
Current Rating
40 A
Interrupt Rating
120 kA
Material
Ceramic, Silver
Mounting
Clip
Series
aM
Size
2.01 x 0.56 in
Size
51 x 14.3 mm
Size
14X51
Special Features
Reduced size Striker version available for remote indication of fuse operation Safest and most reliable protection system
Standard
IEC 60269-1 & -2 Approved by Lloyd's Register of Shipping and Bureau Veritas
Type
IEC Cylindrical Fuse-Links
Voltage Rating
690 VAC
Package Dimensions (L x W x H)
2.01 in x 0.56 in x 0.56 in
Package Dimensions (L x W x H)
51 mm x 14.3 mm x 14.3 mm
Package Weight (Imperial)
0.046 lb
Package Weight (Metric)
0.021 kg
Cylindrical fuse-link gG Size 14x51 IEC 690VAC 40A

P1010173

Cylindrical fuse-link gG Size 14x51 IEC 690VAC 40A

Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.