Why Choose the Mersen C330029 Protistor® High-Speed Semiconductor Fuse?
The Mersen C330029, also identified by the manufacturer reference DN000UB69V315V, is a compact Protistor® high-speed semiconductor fuse designed to protect sensitive power electronic components against damaging short-circuit currents. Its ultra-rapid aR operating characteristic helps limit peak fault current and reduce the thermal energy transferred to semiconductor devices.
Engineered for demanding industrial power-conversion equipment, the C330029 is suitable for protecting diodes, thyristors, rectifiers, inverters and other compatible semiconductor assemblies. Its square-body DIN 80 vertical mounting format provides a secure, space-efficient solution for control panels, variable-speed drives, converters and industrial power supplies.
With a rated current of 315 A and a rated voltage of 690 V AC, the Mersen C330029 provides dependable current-limiting protection for high-power industrial systems. Its NH Size 000 construction is intended for installation in compatible DIN 80 fuse bases and should be selected according to the electrical and mechanical requirements of the equipment.
Key Advantages
- Ultra-fast aR semiconductor short-circuit protection.
- 315 A rated current for high-power electronic equipment.
- 690 V AC voltage rating.
- Current-limiting operation helps minimise damaging fault energy.
- Compact NH Size 000 square-body construction.
- DIN 80 vertical mounting format for industrial fuse systems.
Key Features
- Mersen Protistor® semiconductor fuse.
- Manufacturer reference DN000UB69V315V.
- 315 A rated current.
- 690 V AC rated voltage.
- aR operating class.
- NH Size 000 square-body fuse format.
- DIN 80 vertical mounting configuration.
- Designed for rapid current limitation in power electronic circuits.
Reliable Protection for Industrial Power Electronics
Power semiconductor devices can suffer permanent damage within milliseconds when exposed to excessive fault current. The Mersen C330029 is designed to interrupt serious short circuits rapidly, reducing the peak current and let-through energy reaching connected electronic components.
Correct fuse selection should consider the system voltage, continuous operating current, prospective short-circuit current, semiconductor withstand values and installation conditions. Because the C330029 has an aR operating characteristic, additional overload protection may be required depending on the application and equipment design.
Typical Applications
- Variable frequency drives and motor-control systems.
- Industrial inverters and power converters.
- Rectifier and thyristor protection circuits.
- Uninterruptible power supply systems.
- Battery chargers and industrial DC power equipment.
- Renewable energy conversion systems.
- Industrial automation and electrical control panels.
