Mersen A065UD33TTI1600 Protistor High Speed Fuse, 1600A 600VAC, Size 33 aR Square Body, Flush End with Striker - Pack of 6

The Mersen Protistor® A065UD33TTI1600 (S301086) is an ultra-fast acting square body fuse-link engineered for the ultimate protection of power conversion equipment. As part of the prestigious Protistor® Size 33 series, this fuse is specifically designed to safeguard sensitive semiconductor devices including diodes, thyristors, and IGBTs. With its high-speed aR characteristic, it provides rapid isolation of fault currents, minimizing thermal stress on downstream components. The fuse features a robust ceramic body, silver-plated brass flush-end terminals for low contact resistance, and an integrated striker for visual or remote blown-fuse indication.

Key Features

• Semiconductor Protection: Optimized aR utilization category ensures extremely low I²t clearing values, critical for protecting modern power electronics.
• Superior Construction: Built with die-cut elements embedded in solidified high-purity sand to precisely control arcing and ensure a high interrupting rating.
• Mechanical Reliability: Features non-magnetic hardware and a reinforced terminal design. All contact surfaces are silver-plated to prevent oxidation and maintain high conductivity.
• Integrated Striker: Includes a built-in mechanical striker that provides local indication of fuse operation and can be used to trigger a field-mountable microswitch for remote monitoring.
• Industrial Standard Compliance: Fully compliant with IEC 60269-4 and UL recognized standards, making it suitable for global applications in DC common buses, drives, and rectifiers.

Technical Specifications

• Manufacturer: Mersen (formerly Ferraz Shawmut)
• Catalog Number: A065UD33TTI1600
• Item Number: S301086
• Rated Current: 1600A
• Rated Voltage (IEC): 600VAC
• Rated Voltage (UL): 650VAC
• Breaking Capacity: 200kA at rated voltage
• Utilization Category: aR (Ultra-fast acting)
• Fuse Size: 33
• Termination: Flush End (TTI) with UNC threads
• Indication: Integrated Striker
• Power Dissipation: 210W at rated current
• Body Material: High-grade Ceramic
• Dimensions: 73mm (W) x 78.5mm (H) x 50.6mm (L)