Mersen A25X12-1 - Semiconductor Fuse 300V 12A (50kA AIC VFA)

Mersen A25X12-1 is a low-voltage semiconductor fuse designed for protecting sensitive electronic components from overcurrent conditions. This 300V-rated fuse features a 12A current rating with a very fast-acting (VFA) response time and a 50kA interrupting capacity at 300V for robust short-circuit protection. The compact 0.56-inch diameter ferrule design with single-barrel construction weighs just 0.04 lb, meeting semiconductor protection requirements under UL/CSA standards. Its Amp-Trap series classification ensures reliable performance in industrial power electronics, motor drives, and renewable energy systems where precise fault interruption is critical.

Key Features & Specifications

• Type: A25X semiconductor fuse with very fast-acting (VFA) protection
• Voltage Rating: 300V AC/DC
• Current Rating: 12A
• Dimensions: 0.56" diameter
• Standards: UL/CSA compliant
• Applications: Power electronics, motor drives, renewable energy systems
• Class Rating: Semiconductor
• Connection: Ferrule
• Barrels: 1
• AIC rating: 50kA@300V
• Weight: 0.04 lb

Product Identification

• UPC: 78200194212
• GTIN: 00782001942120