Mersen PC32UD50V1600TF Protistor Fuse, 1600A 500V AC, Size 32 aR, High-Speed Square Body with Striker - Pack of 3

The Mersen Protistor® PC32UD50V1600TF (Item Number D302177) is a premium ultra-fast acting square body fuse-link, specifically engineered for the high-current protection of heavy-duty power semiconductor devices. This Size 32 aR class fuse is highly optimized for safeguarding diodes, thyristors, and large IGBT modules in mission-critical power conversion equipment, such as industrial rectifiers, high-capacity UPS systems, and traction converters.

Crafted with a reinforced ceramic body and silver-plated copper contacts, this fuse utilizes internal pure silver elements to achieve extremely low I²t energy let-through. Its design ensures superior thermal cycling performance and high breaking capacity (200kA), providing maximum protection under extreme fault conditions. The unit is equipped with an integrated Type T mechanical striker for immediate local trip indication and is compatible with microswitches for remote monitoring. The TTF flush-end M10 metric threaded terminals facilitate a robust, low-inductance connection directly to power busbars, ideal for compact high-density switchgear.

Technical Specifications

• Manufacturer: Mersen
• Catalog Number: PC32UD50V1600TF
• Item Number: D302177
• Amperage Rating: 1600A
• Voltage Rating: 500V AC (IEC) / 550V AC (UL)
• Interrupting Rating (Breaking Capacity): 200kA at 500V AC
• Operating Class: aR (Ultra-Fast Acting)
• Product Size: 32
• Mounting Configuration: Flush-End M10 Metric Threads (TTF)
• Indication System: Integrated Mechanical Striker (Type T)
• Pre-arcing I²t: 1300 kA²s
• Total Clearing I²t at Rated Voltage: 4850 kA²s
• Power Dissipation at Rated Current: 190W
• Standards Compliance: IEC 60269-4, UL/CSA Recognized E76491, RoHS Compliant
• Quantity: Pack of 3