Why Choose the Mersen V300628 High-Speed Semiconductor Fuse?
The Mersen V300628 is a premium Protistor® square body high-speed semiconductor fuse engineered to provide exceptional protection for sensitive power electronic devices operating in demanding industrial applications. Designed with an ultra-fast aR operating characteristic, it rapidly clears short circuits to help protect IGBTs, thyristors, diodes and other semiconductor components from costly damage.
As part of the proven Mersen Protistor® Size 73 series, the V300628 combines high breaking capacity with low let-through energy (I²t), making it an excellent choice for modern power conversion equipment. Its robust square body construction, silver-plated contacts and integrated striker indicator provide dependable operation and simplified maintenance.
With a rated current of 315 A and a 1250 V AC IEC / 1300 V AC UL voltage rating, the V300628 is ideally suited to industrial drives, renewable energy systems, UPS equipment, power converters and traction applications where reliable semiconductor protection is essential.
Key Advantages
- Ultra-fast aR semiconductor fuse for protecting sensitive power electronics.
- 315 A current rating for demanding industrial applications.
- 1250 V AC IEC / 1300 V AC UL voltage rating.
- Designed for protecting IGBTs, thyristors, diodes and similar semiconductor devices.
- Low I²t performance reduces thermal stress during fault conditions.
- Integrated striker indicator for simplified maintenance and monitoring.
Key Features
- Mersen Protistor® Size 73 semiconductor fuse.
- 315 A rated current.
- 1250 V AC IEC / 1300 V AC UL voltage rating.
- aR ultra-fast operating characteristic.
- Square body construction.
- Open slot blade terminals.
- Integrated striker indicator.
- Silver-plated contact surfaces for dependable electrical performance.
Reliable Protection for High-Power Electronics
High-speed semiconductor fuses are specifically designed to interrupt fault currents before they can damage expensive semiconductor devices. Their extremely fast operation limits thermal and electrical stress, helping extend the service life of converters, drives and other critical industrial equipment.
The Mersen Protistor® Size 73 range is widely specified by OEMs and industrial engineers for high-voltage power conversion systems where dependable semiconductor protection and high interrupting performance are required.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial power converters.
- Renewable energy inverters.
- UPS systems.
- Motor control equipment.
- Traction and rail power systems.
- Industrial automation equipment.
