Mersen PC73UD95V11CTF Protistor High-Speed Fuse, 1100A 950VAC, Size 73 aR, Flush End with Striker - Pack of 10

Product Overview The Mersen Protistor® PC73UD95V11CTF (Item Number: W300514) is an ultra-fast acting square body fuse-link designed specifically for the protection of power semiconductors such as diodes, thyristors, and IGBT devices. Engineered for high-performance power conversion equipment, this Size 73 fuse provides superior protection with a low I²t to minimize downstream damage during fault conditions.

Key Features

• High-Speed Performance: Ultra-fast aR characteristic optimized for semiconductor protection.
• Global Standards: Dual-rated for 950VAC (IEC) and 1000VAC (UL) applications.
• Premium Construction: Features silver-plated brass contact surfaces and non-magnetic hardware to ensure high conductivity and reliability.
• Integrated Indication: Equipped with a built-in striker for remote or visual blown-fuse indication, compatible with field-mountable microswitches.
• Robust Design: Pure silver die-cut elements embedded in solidified sand for precise arcing control and high interrupting capacity.

Technical Specifications

• Brand: Mersen / Ferraz Shawmut
• Catalogue Number: PC73UD95V11CTF
• Item Number: W300514
• Current Rating: 1100A
• Voltage Rating: 950VAC (IEC) / 1000VAC (UL)
• Fuse Size: 73
• Utilization Category: aR (High-Speed)
• Terminal Type: Flush End (Metric Threads)
• Breaking Capacity: 150 kA
• Clearing I²t at Rated Voltage: 2430 kA²s
• Melting I²t: 445 kA²s
• Power Dissipation (at In): 168 W
• Body Material: High-grade Ceramic
• Dimensions: 73mm (W) x 78.5mm (H) x 74mm (L)
• Compliance: RoHS Compliant