Why Choose the Mersen G301076 Protistor® High-Speed Fuse?
The Mersen G301076 (A065UD33LI1600) is a premium square body high-speed semiconductor fuse engineered to provide outstanding protection for modern power electronic equipment. As part of the trusted Mersen Protistor® Size 33 aR series, it is specifically designed to protect IGBTs, thyristors, diodes and other semiconductor devices against damaging short-circuit currents in demanding industrial applications.
Featuring an ultra-fast aR operating characteristic, the fuse rapidly interrupts fault currents while limiting let-through energy. Its die-cut silver fuse elements embedded in solidified sand, silver-plated contact surfaces and non-magnetic hardware provide exceptional current limitation, low I²t and dependable long-term performance.
With a 1600 A current rating, 600 V AC IEC / 650 V AC UL voltage rating and an integrated striker indicator, the G301076 is ideally suited for protecting industrial drives, UPS systems, inverters, converters and other high-power semiconductor equipment operating on systems up to 690 V.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 1600 A current rating for high-power industrial applications.
- 600 V AC IEC and 650 V AC UL voltage ratings.
- Designed to protect IGBTs, thyristors, diodes and power semiconductors.
- Integrated striker indicator for fuse operation monitoring.
- Very low let-through energy for superior semiconductor protection.
Key Features
- Mersen Protistor® Size 33 aR series.
- Catalogue number: A065UD33LI1600.
- 1600 A rated current.
- 600 V AC IEC / 650 V AC UL rated voltage.
- Square body fuse with long slotted blade terminals.
- Integrated striker indication.
- Silver-plated contacts with non-magnetic hardware.
- 200 kA interrupting capacity.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are engineered to interrupt fault currents before excessive thermal energy reaches sensitive power electronic devices. Their rapid response helps protect expensive semiconductor assemblies while improving equipment reliability and reducing maintenance costs.
The Mersen Protistor® Size 33 range is widely specified for industrial motor drives, UPS systems, renewable energy converters and power conversion equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and inverters.
- UPS and backup power systems.
- Renewable energy equipment.
- Protection of IGBT, thyristor and diode modules.
