Why Choose the Mersen N300369 Protistor® High-Speed Fuse?
The Mersen N300369 is a Protistor® Size 32 square body high-speed semiconductor protection fuse designed to provide exceptional short-circuit protection for sensitive power electronic equipment. Identified by the product designation 6,9 URD 32 TD F 0700, this ultra-fast fuse is engineered to safeguard IGBTs, thyristors, SCRs, diodes and other semiconductor devices used in demanding industrial applications.
Designed for high-performance power conversion systems, the N300369 combines rapid fault interruption with low let-through energy to minimise damage during fault conditions. Its square body construction offers reliable performance in industrial environments where equipment availability and semiconductor protection are critical.
The Mersen N300369 is ideally suited for variable speed drives, UPS systems, industrial converters, renewable energy equipment and motor control applications requiring dependable semiconductor protection. Before installation, always verify the electrical ratings and dimensional compatibility with the original equipment manufacturer's documentation.
Key Advantages
- Genuine Mersen Protistor® high-speed semiconductor fuse.
- Ultra-fast operation for semiconductor protection.
- Designed to protect IGBTs, thyristors, SCRs and diodes.
- Low let-through energy helps reduce equipment damage.
- Suitable for demanding industrial power electronics.
- Reliable square body construction for industrial installations.
Key Features
- Mersen Protistor® Size 32 series.
- Manufacturer part number: N300369.
- Product designation: 6,9 URD 32 TD F 0700.
- Square body semiconductor protection fuse.
- Ultra-fast operating characteristic for semiconductor applications.
- Industrial-grade ceramic construction.
- Designed for power electronic equipment.
- Suitable for OEM and maintenance applications.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are specifically engineered to interrupt high fault currents before excessive thermal energy can damage sensitive power electronic devices. Their ultra-fast response helps maximise equipment reliability while reducing costly downtime and repairs.
Correct fuse selection is essential. Always confirm the manufacturer's part number, current rating, voltage rating, fuse class and mounting dimensions before replacing an existing fuse.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- UPS systems.
- Power converters.
- Renewable energy inverters.
- Servo drive systems.
- Industrial automation equipment.
- Semiconductor protection installations.
