Mersen A25X8-1 - 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 8 Amps A25X series.
Mersen

A25X8-1

Alternate Item Number: 782001942083

UPC: 782001942083

Contact for Pricing

Overview

The Mersen A25X8-1 Amp-trap Semiconductor Protection Fuse (SKU: A25X8-1) is a high-speed, current-limiting fuse engineered for the precise protection of sensitive power semiconductor devices, including diodes, phase control SCRs, and other solid-state power components. Designed for industrial applications requiring robust overcurrent and short-circuit safeguarding, this fuse delivers rapid fault interruption to prevent catastrophic damage to expensive semiconductor equipment and minimize costly downtime. With a 250V AC/DC rating and an 8A current rating, the A25X8-1 is optimized for applications where precision and reliability are critical. The A25X series, to which this fuse belongs, is recognized for its reliability in heavy-duty rectifier and power supply applications, particularly in electro-chemical industries and other demanding environments. Its low I²t value minimizes damage to protected components during short circuits, while controlled arc voltage reduces stress on circuit components during fuse clearing. The fuse is available in North American Style Form 101, offering compatibility with standard mounting configurations. Key specifications include a 250V AC/DC rating, 8A current rating, and an interrupting rating of 100kA IR at 250V AC. The A25X8-1 is UL Recognized (UL File E60314) and designed for use in applications such as motor drives, power supplies, inverters, and renewable energy systems. Its compact design and compatibility with a range of mounting types (e.g., ferrule, blades, bolt-in) make it a versatile choice for equipment designers. Backed by Mersen’s reputation as a global leader in electrical protection solutions, the A25X8-1 adheres to stringent quality standards and is manufactured to ensure longevity and consistent performance in critical industrial applications.
  • 250V AC/DC voltage rating for broad industrial compatibility
  • 8A current rating optimized for semiconductor protection
  • 100kA interrupting rating at 250V AC for robust fault protection
  • Low I²t minimizes damage to protected components during faults
  • UL Recognized (File E60314) for compliance and reliability
  • Available in North American Style Form 101 for standard mounting
  • Controlled arc voltage reduces stress on circuit components during clearing

Specifications

Brand Name
Ferraz Shawmut
Current Rating
8 A
Series
A25X
Voltage Rating
250 V
Package Dimensions (L x W x H)
2 IN x 0.56 IN x 0.56 IN
Package Dimensions (L x W x H)
5.08 cm x 14.224 mm x 14.224 mm
Package Weight (Imperial)
0.040 L
Package Weight (Metric)
0.018 kg

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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.