Mersen PC91UH15C315TF Protistor High-Speed Fuse, 315A 1500VAC, Size 91 aR, Square Body Flush End with Striker (D076156)

Mersen Protistor® High-Speed Semiconductor Protection Fuse | 315A 1500VAC

The Mersen PC91UH15C315TF (Part Number: D076156) is a premium high-performance square body fuse-link within the Protistor® series. Engineered for the ultra-fast protection of critical power semiconductor devices, this Size 91 fuse is rated for 1500VAC and 315A. It is designed to provide ultimate protection for modern power conversion equipment such as SCRs, diodes, thyristors, GTOs, and IGBT devices.

Utilizing the URH design architecture, this fuse features pure silver die-cut elements encapsulated in high-grade solidified sand. This construction provides superior control over arcing characteristics, resulting in low I²t clearing energy and a massive breaking capacity of 200kA. The contact surfaces are constructed from silver-plated brass, and all hardware is non-magnetic to ensure low power dissipation and high thermal efficiency. Each unit is equipped with a low-voltage striker/trip-indicator, facilitating immediate local status identification and the option for remote signaling via a field-mountable microswitch.

Key Features:

• Ultrafast Action: aR utilization category ensures specialized high-speed Response for protecting sensitive semiconductor components.
• High Interrupting Rating: 200kA breaking capacity provides robust circuit protection under extreme fault conditions.
• Energy Efficiency: Low power dissipation (59W at rated current) minimizes energy loss and heat generation within enclosures.
• Advanced Indicating System: Integrated mechanical striker allows for easy visual verification and microswitch integration.
• Industrial Standard Mounting: Flush end metric threads provide high-torque, low-resistance bolted connections.

Technical Specifications:

• Manufacturer: Mersen
• Series: Protistor® Size 91 aR
• Catalog Number: PC91UH15C315TF
• Item Number: D076156
• Rated Current (In): 315A
• Rated Voltage (Un): 1500VAC (IEC)
• Utilization Category: aR (High-speed Semiconductor Protection)
• Breaking Capacity (I1): 200kA
• Clearing I²t at Rated Voltage: 384 kA²s
• Power Dissipation: 59W
• Indication System: Integrated Striker
• Terminal Type: Flush ends (Metric threads)
• Body Material: Ceramic
• Dimensions: 51mm (W) x 62mm (H) x 101mm (L)
• Standards: IEC 60269-4