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Mersen J302780 - Cylindrical fuse-link aM Size 10x38 IEC 690VAC 2A
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Mersen J302780 Cylindrical fuse-link aM Size 10x38 IEC 690VAC 2A

Alternate Item Number: FR10AM69V2


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Specification Sheet

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Overview

The Mersen J302780 is a high-performance cylindrical fuse-link from the aM series, designed for robust protection in industrial electrical distribution circuits. Rated for 690VAC and 2A, this fuse-link is essential for safeguarding equipment against damaging short-circuit currents. Its compact 10x38mm size makes it suitable for a variety of installations where space is a consideration. Constructed with a durable ceramic body and featuring silver-plated contacts, the J302780 ensures reliable conductivity and longevity. As a partial range fuse (aM), it excels at limiting high short-circuit currents and minimizing thermal let-through, cutting off currents exceeding 6.3 times the nominal current up to its maximum breaking capacity of 120 kA. This makes it particularly well-suited for protecting motor circuits and installation switchgear, where precise and rapid fault interruption is critical. The Mersen aM and gG fuse-links, including this 2A model, are engineered for high reliability and technical performance, offering protection across a wide spectrum of physical sizes and ampere ratings for 400, 500, and 690VAC applications. SKU: J302780. Manufacturer: Mersen. Country of Origin: FR.
  • Mersen aM Series Cylindrical Fuse-Link
  • Rated for 690VAC and 2A
  • Compact 10x38mm size
  • Ceramic body with silver-plated contacts
  • High current limiting for motor circuit protection

Specifications

AC Voltage Rating
690 V
Amperage Rating
2 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
Interrupt Rating
120 kA
Mounting
Clip
Size
1.5 x 0.41 in
Size
38 x 10.3 mm
Special Features
Reduced size Visual indication of fuse operation Safest and most reliable protection system Optional indicator
Standard
IEC 60269-1 & -2 (electrically only for the range with striker) Approved by various shipping organizations
Type
IEC Cylindrical Fuse-Links
Package Dimensions (L x W x H)
1.5 in x 0.41 in x 0.41 in
Package Dimensions (L x W x H)
38 mm x 10.3 mm x 10.3 mm
Package Weight (Imperial)
0.018 lb
Package Weight (Metric)
0.008 kg
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Frequently Asked Questions

What is the voltage range for these ferrule fuse-links?

These fuse-links are available for voltage ranges of 400, 500, and 690 VAC.

What is the ampere range for the 10x38 aM fuse-links?

The ampere range for these fuse-links is from 0.16 A to 32 A.

What materials are the fuse-links made of?

The fuse-links have ceramic bodies and silver-plated copper contacts.

What applications are the 'aM' type fuse-links suitable for?

The 'aM' type fuse-links are suitable for protecting motors, transformers, and other loads with in-rush currents.

Are there options for visual indication or striker mechanisms?

Yes, these fuse-links are available with an optional indicator or a striker to activate an auxiliary contact.

What are the dimensions of the 10x38 fuse-links?

The fuse-links have a size of 10x38 mm, with a diameter of approximately 10.2 mm and a length of 38 mm.

What is the breaking capacity of these fuse-links?

The rated breaking capacity for these fuse-links is 120 kA AC (IEC) or 100 kA AC.

What is the purpose of 'aM' type partial range fuses?

They protect electrical devices from destruction by high short-circuit currents by limiting current and thermal let-through.

What standards do these cylindrical fuse-links comply with?

These fuse-links comply with IEC 60269-1 & -2 and are approved by various shipping organizations.

What is the weight of a single 10x38 fuse-link?

The weight of a single 10x38 fuse-link is approximately 8.3 g or 9.2 g when equipped with a striker.

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.