Mersen A13X250-4 - A13X Amp-trap Form 101 Semiconductor Protection fuses were designed for the specific protection of diodes and other semiconductor devices rated 130VAC. The A13X product line's compact design is perfect for those applications that have limitations on available space. 130 Volts 250 Amps type 4 connection.
Mersen

A13X250-4

Alternate Item Number: 782001941253

UPC: 782001941253

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Overview

The Mersen A13X250-4 Amp-trap Form 101 fuse is a high-performance semiconductor protection solution engineered for critical industrial applications where reliability and space efficiency are paramount. Designed to safeguard diodes and other sensitive semiconductor devices operating at 130VAC, this compact fuse combines robust performance with a space-saving form factor, making it ideal for installations with tight footprint constraints. The A13X series from Mersen represents decades of expertise in electrical protection, delivering unmatched precision in fault interruption while minimizing downtime in high-stakes environments. Semiconductor protection fuses like the A13X250-4 are essential components in power conversion systems, renewable energy installations, motor drives, and industrial automation equipment. Their primary function is to provide rapid, predictable interruption during overcurrent events, preventing catastrophic damage to expensive semiconductor components such as IGBTs, thyristors, and diodes. The 250A current rating ensures compatibility with medium-to-high-power applications, while the 130VAC rating aligns with common industrial and commercial power distribution standards. The type 4 connection design facilitates straightforward installation in panelboards, motor control centers, and custom enclosures, reducing labor costs and simplifying maintenance workflows. Industries that rely heavily on semiconductor protection include renewable energy (solar inverters, wind power converters), electric vehicle charging infrastructure, industrial motor controls, and heavy manufacturing. In these sectors, equipment failure due to inadequate protection can result in costly downtime, safety hazards, and regulatory non-compliance. The A13X250-4 addresses these challenges with Mersen’s proprietary Amp-trap technology, which features a unique element design for superior current-limiting performance and arc suppression. This technology ensures that fault currents are interrupted within milliseconds, protecting downstream components from thermal and mechanical stress. Professionals selecting fuses for semiconductor applications must consider several critical factors: voltage rating, current rating, interrupting rating, physical dimensions, and compliance with industry standards. The A13X250-4 excels in all these areas, offering a 130VAC rating that matches common industrial power systems, a 250A continuous current rating for medium-power applications, and a compact design that fits into tight spaces without sacrificing performance. Additionally, Mersen’s fuses are tested to meet UL, IEC, and other international standards, providing assurance of reliability in global markets. Installation of the A13X250-4 is straightforward, thanks to its type 4 connection design, which is compatible with standard fuse blocks and holders. Professionals should ensure proper torque specifications are followed during installation to maintain electrical integrity and prevent overheating. Regular inspection and replacement of fuses as part of a predictive maintenance program can further enhance system reliability. Mersen’s technical support team provides comprehensive guidance on product selection, installation, and compliance, ensuring that customers achieve optimal performance from their protection solutions. Mersen, a global leader in electrical protection and thermal management solutions, has been at the forefront of fuse technology for over a century. The company’s Amp-trap series is renowned for its precision, durability, and adherence to stringent performance standards. With a reputation for innovation and reliability, Mersen is the trusted partner for industries where electrical safety and system uptime are non-negotiable. The A13X250-4 fuse exemplifies this commitment, offering a robust, space-efficient solution for semiconductor protection in demanding industrial environments.
  • Engineered for 130VAC semiconductor protection with 250A current rating
  • Compact Amp-trap Form 101 design ideal for space-constrained applications
  • Type 4 connection for easy installation in panelboards and motor control centers
  • Rapid fault interruption to protect diodes, IGBTs, and other semiconductor devices
  • Compliant with UL, IEC, and other international standards for global reliability

Specifications

Amperage Rating
250 A
Application
Protection of drives, UPS, Rectifiers and other equipment of 130 volts or less
Brand Name
Ferraz Shawmut
Connection
Blade
Connection Type
Type 4 connection
Current Rating
250 A
Mounting
Bolted
Nema Rating
Type 4
Series
A13X
Standard
UL Recognized Component Guide JFHR8, File E60314 Some Ratings RoHS Compliant
Type
North American Round Style
Voltage Rating
130 VAC
Package Dimensions (L x W x H)
2.66 IN x 1 IN x 1 IN
Package Dimensions (L x W x H)
6.7564 cm x 25.4 mm x 25.4 mm
Package Weight (Imperial)
0.250 L
Package Weight (Metric)
0.113 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.
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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.