Why Choose the Mersen V302169 High-Speed Semiconductor Fuse?
The Mersen V302169 is a premium Protistor® Size 33 square body high-speed semiconductor fuse engineered to provide outstanding protection for modern power electronic equipment. Featuring an ultra-fast aR operating characteristic, it rapidly clears short-circuit faults to protect IGBTs, thyristors, diodes and other semiconductor devices used in demanding industrial applications.
Part of the trusted Mersen Protistor® Size 33 series, the V302169 incorporates die-cut silver fuse elements embedded in solidified silica sand to provide low let-through energy (I²t), high breaking capacity and dependable performance. Silver-plated contact surfaces and non-magnetic hardware ensure long service life in critical industrial environments.
Rated at 450 A with a 690 V AC IEC / 700 V AC UL voltage rating, the V302169 features DIN 110 blade terminals with an integrated striker indicator, making it ideal for industrial drives, power converters, UPS systems and renewable energy equipment.
Key Advantages
- Ultra-fast aR semiconductor fuse for protecting sensitive power electronics.
- 450 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Protects IGBTs, thyristors, power diodes and other semiconductor devices.
- Low I²t performance helps minimise thermal stress during fault conditions.
- Integrated striker indicator simplifies maintenance and monitoring.
Key Features
- Mersen Protistor® Size 33 semiconductor fuse.
- 450 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR ultra-fast operating characteristic.
- Square body construction.
- DIN 110 blade terminals.
- Integrated striker indicator.
- Silver-plated contact surfaces for dependable electrical performance.
Reliable Protection for Power Electronics
High-speed semiconductor fuses are specifically designed to interrupt fault currents before they can damage expensive power electronic components. Their ultra-fast response limits fault energy, helping maximise equipment reliability while extending the service life of converters, drives and other industrial power systems.
The Mersen Protistor® Size 33 range is widely specified by OEMs and industrial engineers where dependable semiconductor protection, high interrupting capacity and low let-through energy are essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters.
- UPS systems.
- Renewable energy inverters.
- Industrial automation equipment.
- High-power power supplies.
