Why Choose the Mersen C221262 Protistor® Semiconductor Fuse?
The Mersen C221262 is a Protistor® BS88-4 high-speed semiconductor fuse-link engineered to provide exceptional protection for sensitive power electronic equipment. Designed specifically for semiconductor applications, it protects devices such as thyristors, diodes, GTOs and IGBTs from damaging short circuits and high fault currents while delivering excellent current-limiting performance.
Manufactured as part of the proven Mersen Protistor® BS88-4 series, the C221262 has an 80 A current rating, 690 V AC IEC voltage rating and compact 17 × 49 mm British Standard format. The fuse incorporates an integrated striker indicator for remote indication or microswitch operation, simplifying maintenance and fault detection.
Designed to comply with IEC 60269-1, IEC 60269-4, BS88-4 and VDE 636-23, the Mersen C221262 is ideal for industrial drives, UPS systems, converters, inverters and other critical power electronic equipment requiring dependable semiconductor protection.
Key Advantages
- Genuine Mersen Protistor® high-speed semiconductor fuse.
- 80 A current rating for industrial power electronics.
- 690 V AC IEC voltage rating.
- Integrated striker indicator for rapid fault indication.
- Very high 200 kA breaking capacity.
- Excellent current-limiting characteristics help protect expensive semiconductor devices.
Key Features
- Manufacturer reference: C221262.
- Catalogue number: BS17UY69V80P.
- Protistor® BS88-4 semiconductor fuse-link.
- 80 A rated current.
- 690 V AC IEC rated voltage.
- aR operating class for partial-range semiconductor protection.
- 17 × 49 mm British Standard format.
- Integrated striker for remote indication or microswitch operation.
Reliable Protection for Power Electronic Equipment
High-speed semiconductor fuses are specifically designed to interrupt fault currents before costly semiconductor devices are damaged. Their low let-through energy and rapid operating characteristics maximise equipment reliability while helping reduce maintenance costs and production downtime.
The Mersen Protistor® range is widely specified for variable speed drives, UPS installations, power converters, renewable energy systems and industrial automation equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control systems.
- Power converters and rectifiers.
- UPS and battery backup systems.
- Renewable energy inverters.
- Industrial automation and electrical control panels.
