Mersen PC32UD69V500TF Protistor Fuse, 500A 690V AC, Size 32 aR, High-Speed Square Body with Striker - Pack of 3

The Mersen Protistor® PC32UD69V500TF (Item K302160) is an ultra-fast acting square body fuse-link designed for the high-performance protection of power semiconductor devices. As part of the Size 32 aR class series, it is engineered to provide superior protection against short-circuit faults for diodes, thyristors, and IGBT modules within power conversion systems, including industrial drives, UPS, and traction inverters.

Constructed with a ceramic housing and silver-plated copper terminals, the fuse features advanced internal elements embedded in high-purity solidified sand. This configuration ensures exceptional arcing control, minimal I²t energy let-through, and a high breaking capacity of 200kA. This specific model is equipped with a mechanical striker for visual indication of fuse operation or for triggering a remote microswitch. The TTF flush-end M10 metric threaded design facilitates a high-integrity, compact bolted terminal connection.

Technical Specifications

• Manufacturer: Mersen
• Catalog Number: PC32UD69V500TF
• Item Number: K302160
• Amperage Rating: 500A
• Voltage Rating: 690V AC (IEC) / 700V AC (UL)
• Interrupting Rating (Breaking Capacity): 200kA at 690V AC
• Operating Class: aR (Ultra-Fast Acting / Semiconductor Protection)
• Product Size: 32
• Mounting Type: Flush Ends (M10 Metric Threads)
• Indication System: Integrated Mechanical Striker
• Pre-arcing I²t: 33 kA²s
• Total Clearing I²t at Rated Voltage: 200 kA²s
• Power Dissipation at Rated Current: 82W
• Standards Compliance: IEC 60269-4, UL/CSA Recognized E76491, RoHS Compliant
• Quantity: Pack of 3