Mersen A25X25-1 Semiconductor Fuse 25A

Product Description

The MERSEN A25X25-1 is a 25-amp semiconductor fuse designed to provide fast-acting overcurrent protection for solid-state components such as SCRs, diodes, and power modules. Semiconductor fuses operate at much higher clearing speeds than standard industrial fuses, limiting the let-through energy that reaches sensitive electronic devices during a fault event. This fuse is installed by licensed electricians and electronics technicians working on variable frequency drives, rectifier assemblies, power conversion equipment, and similar solid-state power systems where component protection is critical.

The A25X25-1 is suited for commercial and industrial electrical applications where solid-state power devices require dedicated overcurrent protection. Typical install scenarios include drive panels, motor control centers, and power supply assemblies. The fuse is sized for 25-amp circuits and is selected based on the current rating and voltage requirements of the protected semiconductor device or assembly.

Key Features

• 25-amp current rating for semiconductor circuit protection
• Fast-acting clearing speed limits let-through energy to protect solid-state components
• Designed for SCRs, diodes, thyristors, and power conversion modules
• Compact form factor suitable for drive panels and motor control enclosures

Compatibility

Designed as an OEM-style replacement semiconductor fuse for industrial power conversion and motor drive equipment requiring 25-amp fast-acting fuse protection.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements. De-energize and lock out the panel or drive assembly before removing or installing the fuse. Verify that the replacement fuse current rating, voltage rating, and physical dimensions match the application requirements before installation. Do not substitute a standard time-delay or general-purpose fuse in a semiconductor fuse position.

Technical Specifications

• Current Rating: 25 amps
• Fuse Type: Semiconductor, fast-acting
• UPC: 78200194222

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: A25X25-1