Mersen A25Z12-1 - 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 12 Amps A25Z series.
Mersen

A25Z12-1

Alternate Item Number: 782001942205

UPC: 782001942205

Contact for Pricing

Overview

The Mersen A25Z12-1 Amp-trap Semiconductor Protection Fuse (SKU: A25Z12-1) is a critical component engineered for the robust protection of sensitive power semiconductor devices. Designed by Mersen, a globally recognized leader in electrical protection and power management, this fuse is specifically tailored to safeguard diodes, phase control SCRs (Silicon Controlled Rectifiers), and a wide array of other high-power semiconductor components from damaging overcurrent and short-circuit events. With a precise voltage rating of 250 Volts and a current rating of 12 Amps, the A25Z12-1 fuse offers a reliable and efficient solution for maintaining the integrity and operational lifespan of your power electronic systems. In industrial and commercial applications, the reliability of power semiconductor devices is paramount. These components are the backbone of many modern electrical systems, from motor drives and power supplies to renewable energy inverters and industrial automation equipment. Failures in these devices can lead to costly downtime, extensive repair expenses, and potential safety hazards. The Mersen A25Z series, including the A25Z12-1 model, is developed with a deep understanding of these critical needs. The A25Z12-1 fuse provides fast-acting protection, swiftly interrupting fault currents to isolate the protected semiconductor device, thereby preventing catastrophic damage. This rapid response is essential for minimizing the impact of electrical anomalies and ensuring continuous operation of vital equipment. Key features and benefits of the Mersen A25Z12-1 Amp-trap Semiconductor Protection Fuse include: * **Specialized Semiconductor Protection:** Optimized for the unique protection requirements of power semiconductor devices, offering superior performance compared to general-purpose fuses. * **High Interrupting Rating:** Designed to safely interrupt high fault currents, protecting downstream equipment from severe damage. * **Fast-Acting Response:** Provides rapid interruption of overcurrents, crucial for preventing thermal runaway and destruction of sensitive semiconductors. * **Robust Construction:** Built with high-quality materials to withstand demanding industrial environments and ensure long-term reliability. * **Precise Current and Voltage Ratings:** Accurately specified at 12 Amps and 250 Volts, ensuring compatibility with a wide range of power semiconductor applications. The A25Z12-1 fuse is an integral part of a comprehensive electrical protection strategy. Its selection and installation should be guided by the specific requirements of the semiconductor device being protected and the overall system design. Mersen's commitment to quality and innovation ensures that users can depend on the A25Z12-1 for consistent and effective protection. Whether you are designing new equipment or upgrading existing systems, the Mersen A25Z12-1 Amp-trap Semiconductor Protection Fuse is an indispensable choice for safeguarding your valuable power semiconductor assets and ensuring the operational continuity of your critical infrastructure. Its application spans across various industries, including manufacturing, telecommunications, transportation, and energy, where the reliability of power electronics is non-negotiable. Trust Mersen for unparalleled protection.
  • Designed for protection of power semiconductor devices (diodes, SCRs, etc.)
  • Mersen A25Z series for specialized semiconductor safeguarding
  • 250 Volt AC/DC voltage rating
  • 12 Amp current rating for precise application matching
  • Fast-acting response to overcurrent and short-circuit faults

Specifications

Amperage Rating
12 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)
2 IN x 0.56 IN x 0.56 IN
Package Dimensions (L x W x H)
5.08 cm x 14.224 mm x 14.224 mm
Package Weight (Imperial)
0.040 L
Package Weight (Metric)
0.018 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.