Mersen A13X750-128 - 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 750 Amps type 128 connection.
Mersen

A13X750-128

Alternate Item Number: 782001949112

UPC: 782001949112

Contact for Pricing

Overview

The **Mersen A13X750-128 Amp-trap Form 101 Semiconductor Protection Fuse** is a high-performance, space-efficient solution engineered for the precise protection of diodes and other critical semiconductor devices operating at 130VAC. Designed by Mersen, a global leader in electrical protection and thermal management solutions, this fuse combines robust construction with compact dimensions, making it ideal for applications where space is at a premium without sacrificing reliability or performance. With a current rating of 750A and a Type 128 connection, the A13X750-128 ensures optimal protection in high-demand industrial and electronic systems, including power conversion, motor drives, and renewable energy installations. Semiconductor devices are inherently sensitive to overcurrent and short-circuit conditions, which can lead to catastrophic failure, equipment downtime, and costly repairs. The **A13X750-128** addresses these risks by providing fast, accurate fault interruption tailored to the unique characteristics of semiconductor circuits. Unlike general-purpose fuses, semiconductor protection fuses like the A13X series are designed with lower let-through energy (I²t) values, minimizing stress on protected components during fault events. This precision is critical in applications such as **high-power rectifiers, inverters, and thyristor-based systems**, where even a brief overcurrent can damage sensitive junctions or trigger cascading failures. The **compact design** of the A13X750-128 is a standout feature, allowing it to fit into tight enclosures or densely packed control panels without compromising protection. This is particularly valuable in industries such as **renewable energy (solar/wind power systems), industrial automation, electric vehicle charging infrastructure, and railway traction systems**, where space constraints and high reliability are both non-negotiable. The Type 128 connection ensures compatibility with standard fuse holders and switchgear, simplifying installation and reducing downtime during maintenance or replacement. Mersen’s **Amp-trap Form 101** series is trusted by engineers worldwide for its **consistent performance, high interrupting rating, and adherence to stringent industry standards** (e.g., UL, IEC, and RoHS compliance). The A13X750-128, in particular, is optimized for **130VAC systems**, making it a go-to choice for protecting high-current semiconductor devices in medium-voltage applications. Its **high interrupting rating** ensures it can safely clear faults under extreme conditions, while its **low power loss** contributes to energy efficiency and reduced heat generation in critical systems. When selecting a semiconductor protection fuse, professionals prioritize **response time, I²t rating, and physical durability**. The A13X750-128 excels in all three areas: - **Fast response**: Minimizes damage to protected components by interrupting faults in microseconds. - **Low I²t**: Reduces thermal stress on semiconductors during fault conditions. - **Rugged construction**: Withstands harsh environments, vibrations, and thermal cycling common in industrial settings. Installation is straightforward, with the Type 128 connection ensuring secure mounting in compatible fuse blocks or panels. For optimal performance, ensure proper torque settings during installation to avoid loose connections, which can lead to overheating or arcing. Regular inspection and replacement of fuses after fault events are recommended to maintain system integrity. Mersen’s reputation as a pioneer in electrical protection solutions—with over a century of innovation—underscores the reliability of the A13X750-128. Whether you’re protecting **IGBTs in a solar inverter, diodes in a traction motor drive, or thyristors in a high-power rectifier**, this fuse delivers the precision and durability required for mission-critical applications. Trusted by utilities, OEMs, and system integrators, the A13X750-128 is a proven choice for safeguarding semiconductor assets in the most demanding environments.
  • 130VAC rated for semiconductor protection
  • 750A current rating with Type 128 connection
  • Compact design for space-constrained applications
  • Fast fault interruption with low I²t for semiconductor safety
  • UL/IEC compliant, high interrupting rating for industrial use

Specifications

Amperage Rating
750 A
Application
Protection of drives, UPS, Rectifiers and other equipment of 130 volts or less
Brand Name
Ferraz Shawmut
Connection
Hockey Puck
Connection Type
Type 128
Connection Type
Type 128 connection
Current Rating
750 A
Mounting
Bolted
Series
A13X
Series
Amp-trap Form 101
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)
1.88 IN x 2 IN x 2 IN
Package Dimensions (L x W x H)
4.7752 cm x 5.08 cm x 5.08 cm
Package Weight (Imperial)
1.200 L
Package Weight (Metric)
0.544 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

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

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
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.