Mersen A25X35-4 - 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 35 Amps A25X series.
Mersen

A25X35-4

Alternate Item Number: 782001946982

UPC: 782001946982

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Overview

The **Mersen A25X35-4 Amp-trap Semiconductor Protection Fuse** is a high-performance, precision-engineered solution designed to safeguard critical power semiconductor devices in industrial and commercial applications. Engineered for reliability and durability, this fuse provides robust overcurrent and short-circuit protection for diodes, phase control SCRs, and other high-power semiconductor components operating at 250V and 35A. The A25X series from Mersen is a trusted choice in industries where semiconductor protection is non-negotiable, including power electronics, motor drives, renewable energy systems, and industrial automation. **Key Features and Benefits:** - **Precision Protection:** The A25X35-4 fuse is specifically designed for semiconductor applications, offering fast-acting response times to prevent damage from overcurrent events. Its unique design ensures minimal let-through energy, protecting sensitive semiconductor junctions from thermal stress and catastrophic failure. - **High Voltage and Current Ratings:** With a voltage rating of 250V and a current rating of 35A, this fuse is ideal for medium-voltage power semiconductor applications. It meets stringent industry standards for electrical protection, ensuring compatibility with a wide range of semiconductor devices. - **Durability and Longevity:** Mersen’s Amp-trap fuses are built to withstand harsh industrial environments, including high temperatures, vibrations, and electrical stress. The robust construction of the A25X35-4 ensures long-term reliability, reducing maintenance costs and downtime. - **Industry-Recognized Performance:** Mersen is a global leader in electrical protection solutions, with decades of experience in designing fuses for power electronics and semiconductor applications. The A25X series is widely used in industries such as renewable energy (solar inverters, wind power systems), industrial motor drives, and high-power rectifiers. - **Easy Installation and Compatibility:** The A25X35-4 is designed for seamless integration into existing protection systems. It is compatible with standard fuse holders and mounting configurations, making it a drop-in replacement for outdated or less reliable fuses. **Typical Applications:** The Mersen A25X35-4 Amp-trap fuse is commonly deployed in: - **Power Electronics:** Protection of diodes, thyristors, and IGBTs in rectifiers, inverters, and converters. - **Motor Drives:** Safeguarding semiconductor switches in variable frequency drives (VFDs) and servo systems. - **Renewable Energy Systems:** Critical protection for power semiconductor devices in solar inverters, wind turbine converters, and energy storage systems. - **Industrial Automation:** Ensuring reliable operation of semiconductor-based control systems in manufacturing and processing plants. - **High-Power Rectifiers:** Protection of semiconductor devices in industrial rectification systems for electroplating, anodizing, and other electrochemical processes. **Why Choose Mersen?** Mersen has established itself as a pioneer in electrical protection solutions, with a reputation for innovation and quality. The company’s Amp-trap series is engineered to meet the demanding requirements of modern power electronics, offering unparalleled protection for semiconductor devices. Professionals in the industry trust Mersen for its commitment to safety, performance, and compliance with international standards. Whether you’re designing a new system or upgrading an existing one, the Mersen A25X35-4 Amp-trap fuse delivers the reliability and precision needed to protect your most critical assets. **Installation and Maintenance Considerations:** Proper installation of the A25X35-4 fuse is essential for optimal performance. Professionals should ensure that the fuse is installed in a well-ventilated area, away from excessive heat or moisture. Regular inspections should be conducted to check for signs of wear or damage, and replacements should be made using genuine Mersen fuses to maintain system integrity. The A25X series is designed for easy replacement, minimizing downtime and ensuring continuous protection of your semiconductor devices.
  • 250V voltage rating for medium-voltage applications
  • 35A current rating for power semiconductor protection
  • Fast-acting response to prevent semiconductor damage
  • Durable construction for harsh industrial environments
  • Compatible with standard fuse holders and mounting systems

Specifications

Amperage Rating
35 A
Application
Protection of AC/DC drives, UPS and other equipment of 300 volts or less
Brand Name
Ferraz Shawmut
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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Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

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Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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

9F61BWW460

9F61 Size B Clips 1.6in

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.