Mersen A25Z200-4 - A25Z 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 200 Amps A25Z series.
Mersen

A25Z200-4

Alternate Item Number: 782001942328

UPC: 782001942328

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Overview

The Mersen A25Z200-4 Amp-trap Semiconductor Protection Fuse (SKU: A25Z200-4) is a critical component engineered for the robust protection of sensitive power semiconductor devices. Designed to safeguard diodes, phase control SCRs (Silicon Controlled Rectifiers), and a wide array of other high-power semiconductor components, this fuse offers unparalleled reliability in demanding industrial environments. With a precise voltage rating of 250V and a substantial current rating of 200A, the A25Z200-4 ensures swift and effective interruption of overcurrent and short-circuit conditions, thereby preventing catastrophic damage to expensive semiconductor equipment. The A25Z series from Mersen is synonymous with precision engineering and exceptional durability, making it the preferred choice for applications where the integrity of semiconductor systems is paramount. These fuses are not merely protective devices; they are integral to maintaining the operational efficiency, longevity, and overall performance of complex power electronic systems. Their fast-acting characteristics are specifically tailored to the rapid fault responses required for semiconductor protection, minimizing the duration of damaging current surges. Key features and benefits of the Mersen A25Z200-4 include: * **Superior Semiconductor Protection:** Specifically designed to protect sensitive power diodes, SCRs, and other semiconductor devices from damaging overcurrents and short circuits. * **Optimized for 250V Systems:** Rated for 250 volts, making it suitable for a broad range of industrial power applications. * **High Current Capacity:** A 200-amp rating provides ample capacity for high-power semiconductor circuits. * **Fast-Acting Response:** Engineered for rapid fault interruption, crucial for preventing damage to delicate semiconductor junctions. * **Mersen Quality and Reliability:** Backed by Mersen's reputation for manufacturing high-quality, dependable electrical protection components. This fuse finds extensive application across various industrial sectors, including power electronics, industrial automation, motor drives, uninterruptible power supplies (UPS), renewable energy systems (such as solar inverters and wind turbine converters), and general industrial power distribution. In these fields, the failure of a single semiconductor device can lead to significant downtime and costly repairs. The A25Z200-4 acts as a crucial line of defense, ensuring that such failures are contained and minimized. Professionals in electrical engineering and maintenance rely on Mersen's Amp-trap fuses for their consistent performance and adherence to stringent industry standards. The selection of an appropriate fuse is a critical aspect of power system design, and the A25Z200-4 offers a reliable solution for protecting valuable semiconductor assets. Its robust construction and precise performance characteristics contribute to enhanced system safety and operational continuity, making it an indispensable component in modern industrial electrical infrastructure.
  • Mersen A25Z200-4 Amp-trap Semiconductor Protection Fuse
  • 250 Volt AC/DC voltage rating
  • 200 Amp current rating
  • Designed for protection of diodes, phase control SCRs, and other power semiconductor devices
  • Fast-acting for critical semiconductor protection

Specifications

Amperage Rating
200 A
Application
Protection of AC/DC drives, UPS and other equipment of 300 volts or less
Brand Name
Ferraz Shawmut
Current Rating
200 A
Series
A25Z
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)
3.13 IN x 1.22 IN x 1.22 IN
Package Dimensions (L x W x H)
7.9502 cm x 3.0988 cm x 3.0988 cm
Package Weight (Imperial)
0.380 L
Package Weight (Metric)
0.172 kg
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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.