Mersen PC32UD69V630A Protistor Fuse, 630A 690V AC, Size 32 aR, High-Speed Square Body with Striker - Pack of 3

The Mersen Protistor® PC32UD69V630A (Item Number T130113) is a heavy-duty, ultra-fast acting square body fuse-link designed for the high-end protection of power semiconductor devices. This Size 32 aR class fuse is specifically optimized for 690V AC industrial systems, offering superior protection for power converters, large scale UPS units, and variable speed drives. It is engineered to provide an extremely fast response to short-circuit currents, ensuring the lowest possible I²t let-through values to protect sensitive components like thyristors and rectifiers.

The fuse features a high-grade ceramic body for excellent mechanical and thermal resistance, along with silver-plated contact surfaces to ensure low contact resistance. Its high breaking capacity of 200kA is achieved through a sophisticated internal design using pure silver elements and high-purity silica sand. This model comes standard with a mechanical striker, providing both a local visual trip indication and the capability to actuate an optional microswitch for remote fault detection and system safety control.

Technical Specifications

• Manufacturer: Mersen
• Catalog Number: PC32UD69V630A
• Item Number: T130113
• Amperage Rating: 630A
• Voltage Rating: 690V AC (IEC / UL)
• Interrupting Rating (Breaking Capacity): 200kA at 690V AC
• Operating Class: aR (Ultra-Fast Acting)
• Product Size: 32
• Mounting Configuration: Flush-End Metric Threads (M10)
• Indication System: Integrated Mechanical Striker
• Pre-arcing I²t: 86 kA²s
• Total Clearing I²t at Rated Voltage: 570 kA²s
• Power Dissipation at Rated Current: 115W
• Standards Compliance: IEC 60269-4, UL 248-13 Recognized, CCC, RoHS Compliant
• Quantity: Pack of 3