Why Choose the Mersen Q300187 Protistor® High-Speed Fuse?
The Mersen Q300187 is a genuine Protistor® Size 32 square body high-speed semiconductor fuse designed to provide outstanding protection for sensitive power electronic equipment operating in demanding industrial applications. Identified by the catalogue number PC32UD69V450D1A, this ultra-fast aR characteristic fuse-link is engineered specifically to protect semiconductors including IGBTs, thyristors and diodes against damaging short-circuit currents.
As part of the trusted Mersen Protistor® Size 32 range, the Q300187 combines rapid fault clearing, low let-through energy and a high breaking capacity to maximise equipment reliability whilst minimising costly downtime. Its ceramic square body, silver-plated DIN 110 blade terminals and integrated striker indicator make it ideal for industrial power conversion systems.
With a 450 A current rating, 690 V AC IEC and 700 V AC UL voltage ratings, the Mersen Q300187 is ideally suited for protecting variable speed drives, UPS systems, inverters, converters and industrial motor control equipment.
Key Advantages
- Genuine Mersen Protistor® semiconductor protection fuse.
- 450 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL rated operation.
- Ultra-fast aR operating characteristic.
- Integrated striker indicator for rapid fuse status identification.
- High breaking capacity helps protect valuable power electronic equipment.
Key Features
- Mersen Protistor® Size 32 series.
- Manufacturer part number: Q300187.
- Catalogue number: PC32UD69V450D1A.
- 450 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR ultra-fast operating characteristic.
- DIN 110 blade terminals.
- Integrated striker indicator.
Advanced Semiconductor Protection
Protistor® semiconductor fuses are specifically engineered to protect modern power electronic devices against destructive short-circuit currents. Their low let-through energy helps minimise equipment damage, reduce maintenance costs and maximise operational uptime.
The Mersen Protistor® range is widely specified for variable frequency drives, UPS systems, converters, renewable energy equipment, industrial motor drives and automation systems where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and inverters.
- UPS systems.
- Renewable energy power conversion equipment.
- Industrial automation systems.
