Why Choose the Mersen S330020 High-Speed Semiconductor Fuse?
The Mersen S330020 is a Protistor® Size 000 high-speed semiconductor fuse designed for the protection of power semiconductor devices in demanding industrial applications. This model is designated 6.9 gRB 000 D08V/040, providing 40 A protection at 690 V AC with an integrated blown-fuse indicator for fast maintenance and fault identification.
Engineered for the protection of converters, variable speed drives, UPS systems and similar power electronic equipment, the S330020 features Mersen's proven Protistor® technology, delivering extremely fast fault clearing with low let-through energy to minimise damage to expensive semiconductor components.
Key Advantages
- Ultra-fast gRB semiconductor fuse for sensitive power electronics.
- 40 A current rating.
- 690 V AC voltage rating.
- 200 kA interrupting capacity.
- Integrated blown fuse indicator for rapid maintenance.
- Compact DIN 80 Size 000 square-body construction.
- Low I²t characteristics help reduce semiconductor damage.
Key Features
- Mersen Protistor® High-Speed Fuse.
- Catalogue number: S330020.
- Description: 6.9 gRB 000 D08V/040.
- 40 A rated current.
- 690 V AC rating.
- gRB semiconductor protection characteristic.
- DIN 80 NH Size 000 square-body fuse.
- Integrated blown-fuse indicator.
- Ceramic body with blade terminals.
Reliable Protection for Power Electronics
The Mersen S330020 is designed to interrupt fault currents before excessive thermal energy can damage sensitive semiconductor devices. Its fast-acting characteristics make it suitable for protecting IGBTs, SCRs, diodes and other power semiconductor components used throughout industrial automation and power conversion equipment.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters.
- Rectifiers.
- UPS systems.
- Battery chargers.
- Renewable energy converters.
- Industrial power supplies.
