Mersen PC91UF15C100TF Protistor High-Speed Fuse, 100A 1500VAC, Size 91 aR, Square Body Flush End with Striker (W076149)

Mersen Protistor® High-Speed Semiconductor Protection Fuse | 100A 1500VAC

The Mersen PC91UF15C100TF (Part Number: W076149) is a high-performance square body fuse-link within the renowned Protistor® series. This Size 91 fuse is specifically engineered to provide state-of-the-art protection for power semiconductor devices, including SCRs, diodes, thyristors, GTOs, and IGBTs. Rated for 1500VAC and 100A, it offers maximum flexibility and ultimate protection for modern power conversion equipment.

Constructed following the URF design standard, this fuse utilizes pure silver die-cut elements embedded in solidified sand. This precise engineering ensures optimal control of arcing characteristics, resulting in low I²t clearing values (10 kA²s) and an exceptionally high breaking capacity of 200kA. The contact surfaces are silver-plated brass, and all hardware is non-magnetic to minimize power loss and thermal accumulation. The fuse is equipped with a low-voltage striker/trip-indicator, which is compatible with field-mountable microswitches for remote status monitoring.

Key Features:

• Ultra-Fast Protection: aR characteristic provides high-speed interruption essential for sensitive power semiconductors.
• High Breaking Capacity: Rated for 200kA at 1500VAC to withstand significant fault currents.
• Premium Construction: Ceramic body and silver-plated terminals ensure long-term reliability and low contact resistance.
• Visual & Remote Signaling: Integrated striker provides mechanical indication of fuse operation and allows for microswitch mounting.
• Energy Efficiency: Low power dissipation (35W at rated current) reduces the thermal load on electrical cabinets.

Technical Specifications:

• Manufacturer: Mersen
• Series: Protistor® Size 91 aR
• Catalog Number: PC91UF15C100TF
• Item Number: W076149
• Rated Current: 100A
• Rated Voltage: 1500VAC (IEC)
• Utilization Category: aR (High-speed Semiconductor Protection)
• Breaking Capacity: 200kA
• Clearing I²t at Rated Voltage: 10 kA²s
• Power Dissipation: 35W
• Mounting Type: Bolted (Flush ends with metric threads)
• Body Material: High-grade Ceramic
• Dimensions: 51mm (W) x 62mm (H) x 101mm (L)
• Standards: IEC 60269-4