Mersen A25X2000-128 - 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 2000 Amps A25X series.
Mersen

A25X2000-128

Alternate Item Number: 782001942885

UPC: 782001942885

Contact for Pricing

Overview

The Mersen A25X2000-128 Amp-trap Semiconductor Protection Fuse (SKU: A25X2000-128) is engineered for the critical protection of high-power semiconductor devices. Specifically designed to safeguard diodes, phase control SCRs, and other sensitive solid-state components, this fuse ensures operational integrity and extends the lifespan of valuable industrial equipment. With a robust 250 Volt rating and a substantial 2000 Amp current capacity, the A25X series offers reliable performance in demanding industrial environments. Mersen's Amp-trap fuses are renowned for their fast-acting interruption capabilities, effectively limiting damaging fault currents and preventing catastrophic system failures. This rapid response is crucial for protecting semiconductor devices susceptible to transient overvoltages and overcurrent conditions. Key features and benefits include: * **Superior Semiconductor Protection:** Specifically designed to protect sensitive power semiconductor devices like diodes and SCRs. * **High Current and Voltage Ratings:** Capable of handling up to 2000 Amps at 250 Volts, suitable for heavy-duty applications. * **Fast-Acting Interruption:** Provides extremely fast response to overcurrent and short-circuit events, minimizing damage. * **Current Limiting Capabilities:** Effectively limits let-through energy (I²t) and peak let-through current, crucial for semiconductor safety. * **Enhanced System Reliability:** Contributes to the overall stability and dependability of power electronic systems. * **Industrial Grade Construction:** Built to withstand harsh operating conditions, ensuring long-term performance.
  • Specifically designed for power semiconductor protection (diodes, SCRs)
  • High current rating of 2000 Amps
  • Voltage rating of 250 Volts
  • Fast-acting interruption to limit fault currents
  • Low I²t for minimized damage to protected components

Specifications

Brand Name
Ferraz Shawmut
Current Rating
2000 A
Mounting Type
Cartridge-style
Series
A25X
Voltage Rating
250 V
Package Dimensions (L x W x H)
2.59 IN x 3.5 IN x 3.5 IN
Package Dimensions (L x W x H)
6.5786 cm x 8.89 cm x 8.89 cm
Package Weight (Imperial)
5.000 L
Package Weight (Metric)
2.268 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.

LCC5

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.
9F61 Size B Clips 1.6in

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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.