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MERSEN FUSE 6,9 GRB 17 D08 /90 6,9GRB17D08/90
Why Choose the MERSEN FUSE 6,9 GRB 17 D08 /90 6,9GRB17D08/90?
Why Choose the Mersen B220985 High-Speed Semiconductor Fuse?
The Mersen B220985 is a Protistor® Size 17 high-speed semiconductor fuse engineered to provide rapid protection for sensitive power electronic equipment. Designed specifically for semiconductor applications, it delivers exceptional current-limiting performance to protect IGBTs, thyristors, diodes and rectifiers from damaging short circuits.
Featuring a compact 17 × 49 mm cylindrical body, the B220985 combines fast fault interruption with high breaking capacity, making it ideal for industrial power conversion equipment where semiconductor reliability is critical. Its gRB operating class provides dependable protection while helping reduce downtime and costly equipment damage.
With a 90 A rated current, 690 V AC / 690 V DC rating and 200 kA breaking capacity, the Mersen B220985 is widely used in industrial drives, converters, UPS systems and renewable energy applications requiring dependable semiconductor protection.
Key Advantages
- High-speed gRB semiconductor protection fuse.
- 90 A current rating for industrial power electronics.
- 690 V AC / 690 V DC operating voltage.
- 200 kA breaking capacity for excellent fault protection.
- Low let-through energy helps protect expensive semiconductor devices.
- Compact 17 × 49 mm cylindrical design.
Key Features
- Mersen Protistor® semiconductor fuse.
- 90 A rated current.
- 690 V AC / 690 V DC rating.
- gRB operating class.
- 17 × 49 mm cylindrical construction.
- Current-limiting high-speed operation.
- Blade/inline mounting configuration.
- Suitable for professional industrial installations.
Reliable Protection for Industrial Power Electronics
The Mersen B220985 is designed to interrupt high fault currents before sensitive semiconductor devices can be damaged. Its current-limiting characteristics minimise thermal and mechanical stress, helping improve equipment reliability while reducing maintenance costs.
Its compact cylindrical construction makes it suitable for use in compatible industrial fuse holders across a wide range of power conversion and automation equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters and converters.
- UPS systems.
- Renewable energy power converters.
- Power semiconductor protection.
- Industrial automation equipment.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | D / D0 (Neozed/Diazed), Semiconductor | |
| Fuse Size | 17x49 mm | |
| Current | 90 A | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | Protistor® | |
| Model | B220985 | |
| Product type | High-speed semiconductor fuse | |
| Rated current | 90 A | |
| Rated voltage AC | 690 V | |
| Rated voltage DC | 690 V | |
| Fuse class | gRB | |
| Breaking capacity | 200 kA | |
| Fuse size | 17 × 49 mm | |
| Mounting type | Inline / holder | |
| Terminal type | Blade tabs |
Frequently Asked Questions
What is the Mersen B220985 used for?
The Mersen B220985 is a high-speed semiconductor fuse designed to protect industrial power electronic equipment from damaging short-circuit currents.
What is the current rating of this fuse?
The fuse has a 90 A rated current.
What voltage is the B220985 rated for?
The fuse is rated for 690 V AC and 690 V DC operation.
What does the gRB fuse class mean?
The gRB operating class provides high-speed protection for semiconductor equipment, offering both overload and short-circuit protection in suitable applications.
Where is the B220985 commonly installed?
It is typically installed in compatible fuse holders within industrial drives, converters, UPS systems and other power electronic equipment.
Trusted Semiconductor Protection Technology
Mersen Protistor® semiconductor fuses are trusted by OEMs, panel builders and maintenance engineers worldwide to protect critical power electronic systems in demanding industrial applications.
