Mersen A25X1-1 - 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 1 Amps A25X series.
Mersen

A25X1-1

Alternate Item Number: 782001942014

UPC: 782001942014

Contact for Pricing

Overview

The Mersen A25X1-1 Amp-trap Semiconductor Protection Fuse (SKU: A25X1-1) is engineered for the critical protection of power semiconductor devices. As part of Mersen's A25X series, this fuse is specifically designed for diodes, phase control SCRs, and other sensitive power semiconductor components operating at 250 Volts and 1 Amp. It offers low I²t to minimize damage to protected components during short circuits and controlled arc voltage to reduce stress on circuit components during fuse clearing. The A25X series is recognized by UL (File E60314) and is suitable for applications requiring high-speed interruption. Ratings include 300VAC for 1-30A, 250VAC for 35-60A, and 250VAC for 70-250A, with an interrupt rating of 50kA IR for 35-60A and 100kA IR for 70-250A. The A25X1-1 is ideal for protecting heavy-duty rectifiers and similar heavy power supplies, including those found in power conversion systems, motor control applications, and industrial automation. Mersen's Amp-trap technology ensures reliable performance and durability in demanding industrial environments. Choose Mersen for trusted semiconductor protection solutions. The A25X1-1 fuse is a 1 Amp, 250 Volt device within the A25X series. This series is intended for the protection of Power Semiconductors such as Diodes, Phase Control SCR's and other power Semiconductor devices. The A25X1-1 specifically addresses the need for precise protection at these voltage and current levels. The A25X series fuses are designed to provide a high degree of protection for these sensitive components.
  • Designed for protection of Power Semiconductors (Diodes, SCRs)
  • 250 Volts, 1 Amp rating
  • Low I²t minimizes damage to protected components
  • Controlled arc voltage reduces stress
  • UL Recognized Component (File E60314)

Specifications

Brand Name
Ferraz Shawmut
Current Rating
1 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.