Mersen PC93UB15C750TF Protistor High-Speed Fuse, 750A 1500VAC, Size 93 aR, Square Body Flush End with Striker (J076414)

Mersen Protistor® High-Speed Semiconductor Protection Fuse | 750A 1500VAC

The Mersen PC93UB15C750TF (Reference Number: J076414) is a premium ultra-fast-acting fuse belonging to the Protistor® PSC Square Body series. Engineering specifically for the protection of power semiconductor devices, this Size 93 fuse is designed for high-power applications requiring 750A current capacity and 1500VAC voltage levels. It is an industry-standard choice for safeguarding rectifiers, high-voltage converters, and power supplies in railway, energy, and industrial sectors.

As an "aR" utilization category fuse, it provides high-speed, partial-range protection against short-circuit events with exceptionally low response times. The Square Body Flush End configuration provides low-inductance mounting and excellent thermal management through direct busbar connection (Metric threading). This unit features an integrated mechanical Type TF striker, which functions both as a visible trip indicator and a trigger for remote auxiliary microswitches to ensure system-wide fault monitoring.

Key Features:

• Superior Semiconductor Protection: "aR" characteristic optimized to protect diodes, thyristors, and advanced power modules (IGBTs) from destructive short-circuit currents.
• High Voltage Performance: Rated for up to 1500VAC, meeting the demands of high-voltage industrial electronics and traction systems.
• High Breaking Capacity: Certified to safely interrupt fault currents up to 150kA, preventing cascading system failures.
• Energy-Efficient Design: Engineered for low power dissipation and minimal I²t let-through, preserving the integrity of downstream power components.
• Professional Grade Construction: Built with a high-durability ceramic body and silver-plated copper terminals for optimized electrical contact performance.
• Status Indication: Equipped with a built-in TF striker for immediate visual confirmation of fuse status and remote signaling compatibility.

Technical Specifications:

• Manufacturer: Mersen
• Series: Protistor® Square Body PSC
• Catalog Number: PC93UB15C750TF
• Reference Number: J076414
• Rated Current (In): 750 A
• Rated Voltage (Un): 1500 VAC
• Utilization Category: aR
• Breaking Capacity: 150 kA
• Fuse Size: Size 93
• Mounting Type: Flush End (Metric Threaded)
• Indicator: Mechanical Striker (Type TF)
• Standards Compliance: IEC 60269-4