Mersen PC92UG15C250TF Protistor High-Speed Fuse, 250A 1500VAC, Size 92 aR, Square Body Flush End with Striker (G076159)

Mersen Protistor® High-Speed Semiconductor Protection Fuse | 250A 1500VAC

The Mersen PC92UG15C250TF (Part Number: G076159) is an advanced high-speed square body fuse-link within the globally recognized Protistor® series. This Size 92 fuse is specifically engineered for the high-performance protection of power semiconductor devices, including SCRs, diodes, thyristors, GTOs, and IGBTs. With a 250A current rating and a 1500VAC voltage rating, it provides ultimate protection for industrial power conversion equipment.

Constructed following the URG design standard, this fuse utilizes pure silver die-cut elements encapsulated in high-grade solidified sand. This internal architecture ensures precise control over arcing, resulting in very low I²t energy let-through and a superior breaking capacity of 200kA. The exterior features a high-strength ceramic body and silver-plated brass flush-end terminals with metric threads for secure, low-loss bolted mounting. For system monitoring, the fuse is equipped with a mechanical trip-indicator (striker), allowing for visual identification of blown status and integration with field-mountable microswitches for remote signaling.

Key Features:

• Ultrafast Clearing Action: aR utilization category provides specialized protection against short-circuits for sensitive semiconductor components.
• Extremely High Breaking Capacity: Safely interrupts faults up to 200kA at 1500VAC, ensuring safety in high-energy environments.
• Low Power Dissipation: Rated at 73W at current load, minimizing thermal impact on industrial enclosures and cabinets.
• Advanced Indicating System: Integrated striker provides immediate local status indication and enables remote health monitoring.
• Robust Bolted Connection: Flush-end metric thread design ensures a high-torque, stable electrical interface.

Technical Specifications:

• Manufacturer: Mersen
• Series: Protistor® Square Body PSC
• Catalog Number: PC92UG15C250TF
• Item Number: G076159
• Rated Current (In): 250 A
• Rated Voltage (Un): 1500 VAC
• Utilization Category: aR
• Breaking Capacity (I.R.): 200 kA
• Maximum clearing I²t: 84 kA²s
• Power Dissipation (at In): 73 W
• Fuse Size: 92
• Mounting Type: Flush Ends (Metric threads)
• Body Material: Ceramic
• Indication: Integrated Striker
• Standards: IEC 60269-4 / UR Recognized