Mersen A25X60-4 - A25X Amp-trap Semiconductor Protection fuses are intended for the protection of Power Semiconductors such as Diodes, Phase Control SCR's and other power Semiconductor devices 250 Volts 60 Amps A25X series.
Mersen

A25X60-4

Alternate Item Number: 782001942380

UPC: 782001942380

Contact for Pricing

Overview

The Mersen A25X60-4 Amp-trap Semiconductor Protection Fuse is a high-speed, current-limiting fuse designed for the protection of power semiconductors such as diodes, phase control SCRs, thyristors, transistors, and other high-power semiconductor devices. Rated at 250V and 60A, this fuse is part of Mersen’s A25X series, engineered to deliver ultra-fast response times to minimize let-through energy (I²t) during fault conditions. Unlike conventional fuses, the A25X60-4 is specifically optimized for semiconductor protection, ensuring rapid interruption of overcurrent events to prevent thermal runaway, device degradation, or catastrophic system failure. Key features include low I²t values to reduce damage to protected components, controlled arc voltage to minimize stress on circuit components during fault clearing, and a choice of mounting types for flexible equipment design. The fuse is UL Recognized (UL File E60314) and designed for applications requiring reliable protection at 250V AC/DC, including power rectifiers, variable speed drives (VSDs), uninterruptible power supplies (UPS), industrial automation systems, and renewable energy installations such as solar inverters and wind turbine converters. The A25X60-4 is manufactured in the US and features a ceramic or high-performance polymer housing to withstand extreme thermal and mechanical stresses. Its current-limiting capability ensures fault currents are interrupted before significant damage occurs, reducing the risk of cascading failures in sensitive semiconductor circuits. With an interrupting rating of 100kA IR at 250V AC, this fuse is ideal for heavy-duty rectifiers and similar high-power applications where precision and reliability are critical.
  • Rated 250V AC/DC, 60A for semiconductor protection
  • Ultra-fast response time with low I²t to minimize damage
  • Controlled arc voltage reduces stress on circuit components
  • UL Recognized (UL File E60314) for certified reliability
  • Compatible with power rectifiers, VSDs, UPS, and renewable energy systems

Specifications

Amperage Rating
60 A
Application
Protection of AC/DC drives, UPS and other equipment of 300 volts or less
Brand Name
Ferraz Shawmut
Current Rating
60 A
Material
High-quality fuse elements, ceramic or high-performance polymer housing
Mounting Type
Compact design for fuse holders and switchgear
Series
A25X
Special Features
250VAC rated Low I 2 t minimizes damage to protected component on short circuit. Controlled arc Voltage reduces stress to circuit components during fuse clearing. Choice of mounting types helps in equipment design
Standard
UL Recognized Component Guide JFHR2 Some Ratings RoHS Compliant
Type
North American Round Style
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
3.19 IN x 0.81 IN x 0.81 IN
Package Dimensions (L x W x H)
8.1026 cm x 20.574 mm x 20.574 mm
Package Weight (Imperial)
0.130 L
Package Weight (Metric)
0.059 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

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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.