Authorized Mersen Distributor
Mersen A25X30-1 - 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 30 Amps A25X series.

Mersen A25X30-1 A25X Amp-trap Semiconductor Protection fuses are intended for the protection of Power…

Alternate Item Number: 782001942267

UPC: 782001942267


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

Mersen A25X30-1 Amp-trap Semiconductor Protection Fuse (SKU: A25X30-1) is a high-speed, current-limiting fuse for protecting sensitive power semiconductors including diodes and phase control SCRs. Rated 250V/30A, it is part of Mersen’s Amp-trap series for high-power electronic systems in industrial environments. Power semiconductors in motor drives, power supplies, renewable energy converters, and industrial automation are vulnerable to fault currents that cause downtime, repairs, and safety risks. The A25X30-1 responds rapidly to fault currents, absorbing significant energy while interrupting the circuit to protect semiconductor junctions and extend equipment life. Key features: - **Semiconductor-specific protection:** Designed for power diodes, SCRs, and similar devices, outperforming general-purpose fuses. - **High interrupting rating:** Safely interrupts high fault currents to prevent damage to semiconductors and associated circuits. - **Fast-acting response:** Rapidly disconnects overcurrents to reduce stress on sensitive components. - **Durable construction:** High-quality materials for harsh industrial conditions and long-term reliability. - **Precise ratings:** 250V/30A for compatibility with common power semiconductor configurations. Selection requires matching semiconductor parameters such as peak repetitive forward current (I_FRM), peak repetitive reverse voltage (V_RRM), and expected fault current to the fuse’s 250V/30A ratings. Integration enhances system reliability, reduces maintenance costs, and improves safety.
  • 250V voltage rating, 30A current rating
  • Fast-acting response for semiconductor protection
  • High interrupting rating for fault current mitigation
  • Designed for diodes, phase control SCRs, and power semiconductors
  • Robust construction for industrial environments

Specifications

Brand Name
Ferraz Shawmut
Current Rating
30 A
Series
A25X
Voltage Rating
250 V
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 Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip

30323R

Fuse Block 600VAC 600VDC Class CC 30A 3-Pole Pressure Plate with Reinforced Clip
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in
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.

Frequently Asked Questions

What voltage and current ratings does the A25X30-1 support?

The A25X30-1 is rated for 250 volts and 30 amperes, making it suitable for protecting power semiconductors in 250V systems.

What types of semiconductors does this fuse protect?

The A25X30-1 is designed to protect power diodes, phase control SCRs (Silicon Controlled Rectifiers), and other advanced power semiconductor devices.

How fast does the A25X30-1 respond to overcurrents?

The fuse provides a fast-acting response to rapidly disconnect overcurrents, minimizing stress on sensitive semiconductor components.

What is the interrupting rating of the A25X30-1?

The A25X30-1 is designed to safely interrupt high fault currents, preventing catastrophic damage to protected semiconductors and associated circuitry.

Is the A25X30-1 suitable for industrial environments?

Yes, the fuse is built with high-quality materials to withstand the rigors of industrial environments and ensure long-term reliability.

What applications is the A25X30-1 used in?

The fuse is used in motor drives, power supplies, renewable energy converters, and industrial automation systems where power semiconductors are critical.

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.