Why Choose the Mersen A082455 Protistor® Semiconductor Fuse?
The Mersen A082455 is a high-speed Protistor® semiconductor fuse engineered to provide ultra-fast protection for sensitive power electronic devices. Designed specifically for safeguarding semiconductors such as diodes, SCRs, thyristors, IGBTs and rectifiers, it delivers rapid fault interruption while minimising damage to expensive electrical equipment.
Manufactured as part of the trusted Mersen Protistor® BS88-4 range, the A082455 combines excellent current-limiting characteristics with high breaking capacity, making it ideal for industrial drives, power converters, UPS systems and renewable energy installations. Its compact BS88-style construction enables easy integration into compatible fuse holders and switchgear assemblies.
Rated at 20 A with a 690 V AC voltage rating, the Mersen A082455 features an ultra-fast URE operating characteristic for reliable semiconductor protection in demanding industrial applications.
Key Advantages
- Ultra-fast semiconductor protection fuse for sensitive power electronics.
- 20 A current rating for industrial electrical applications.
- 690 V AC voltage rating.
- URE operating characteristic for semiconductor protection.
- Excellent current-limiting performance reduces equipment damage.
- Compact BS88-4 design for straightforward installation.
Key Features
- Mersen Protistor® BS88-4 series.
- Manufacturer reference: A082455.
- Designation: 6.9 URE 10/20.
- 20 A rated current.
- 690 V AC rated voltage.
- Ultra-fast URE semiconductor protection.
- BS88-4 10 × 51 mm format.
- Designed for industrial power electronic equipment.
Reliable Protection for Power Electronics
Semiconductor fuses are specifically designed to interrupt fault currents before sensitive electronic components can be damaged. Their ultra-fast response limits thermal and mechanical stress, improving equipment reliability and reducing downtime in industrial installations.
The Mersen Protistor® range is widely specified by machine builders and electrical engineers for protecting power converters, variable speed drives, UPS systems and renewable energy equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable speed drives.
- Industrial power converters.
- UPS systems.
- Renewable energy inverters.
- Motor control equipment.
- Industrial automation systems.
