Mersen PC32UD60V1100TF Protistor Fuse, 1100A 600V AC, Size 32 aR, High-Speed Square Body with Striker - Pack of 3

The Mersen Protistor® PC32UD60V1100TF (Item W302170) is an ultra-fast acting square body fuse-link engineered for the protection of high-power semiconductor devices. This Size 32 aR class fuse is specifically designed to provide superior short-circuit protection for diodes, thyristors, and IGBT modules in heavy-duty power conversion equipment, including industrial rectifiers, large UPS units, and traction power substations.

Constructed with high-grade ceramic housing and silver-plated copper contacts, this fuse utilizes advanced internal pure silver elements to ensure extremely low I²t energy let-through and reduced thermal stress on protected components. It features a high breaking capacity of 200kA, ensuring reliable operation under severe fault conditions. The unit is equipped with a mechanical striker (Type T) for immediate local trip indication, which can also be used to trigger an optional microswitch for remote monitoring. The TTF flush-end M10 metric threaded interface provides a low-inductance, high-current bolted connection ideal for compact power busbar assemblies.

Technical Specifications

• Manufacturer: Mersen
• Catalog Number: PC32UD60V1100TF
• Item Number: W302170
• Amperage Rating: 1100A
• Voltage Rating: 600V AC (IEC / UL)
• Interrupting Rating (Breaking Capacity): 200kA at 600V 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: 350 kA²s
• Total Clearing I²t at Rated Voltage: 1650 kA²s
• Power Dissipation at Rated Current: 155W
• Standards Compliance: IEC 60269-4, UL/CSA Recognized E76491, RoHS Compliant
• Quantity: Pack of 3