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MERSEN FUSE 6,9 GRB 17 D08P 32 6,9GRB17D08P32
Why Choose the MERSEN FUSE 6,9 GRB 17 D08P 32 6,9GRB17D08P32?
Why Choose the Mersen B221008 Protistor® High-Speed Semiconductor Fuse?
The Mersen B221008 is a Protistor® BS88-4 high-speed semiconductor fuse designed to provide rapid short-circuit protection for sensitive power electronic equipment. Developed specifically for semiconductor applications, it delivers exceptional current-limiting performance to safeguard IGBTs, thyristors, diodes and rectifiers from damaging fault currents while minimising let-through energy.
Manufactured using precision silver fuse elements housed within a robust ceramic body filled with high-grade silica sand, the B221008 provides excellent reliability, consistent operating characteristics and an exceptionally high breaking capacity. These features make it an ideal choice for demanding industrial power conversion systems.
As part of the trusted Mersen Protistor® range, the B221008 is commonly used in industrial drives, converters, UPS systems and renewable energy equipment where dependable semiconductor protection is essential for maximising equipment uptime and reducing maintenance costs.
Key Advantages
- High-speed semiconductor protection for sensitive power electronics.
- Current-limiting design reduces fault energy.
- Excellent protection for IGBTs, thyristors and rectifiers.
- High breaking capacity for industrial applications.
- Reliable ceramic body construction with silver fuse elements.
- Genuine Mersen Protistor® quality.
Key Features
- Mersen Protistor® semiconductor fuse.
- BS88-4 industrial fuse design.
- High-speed fault interruption.
- Low I²t characteristics.
- Ceramic body with silica filler.
- Silver fuse elements.
- Suitable for industrial semiconductor protection.
- Designed for professional electrical installations.
Designed for Critical Power Electronics
The Mersen B221008 has been engineered for demanding industrial applications where semiconductor devices require extremely fast fault protection. Its high-speed operation helps reduce thermal and mechanical stress during short-circuit conditions, extending the service life of expensive power electronic equipment.
It is widely used in industrial automation, renewable energy systems, motor drives and power conversion equipment where reliable semiconductor protection is essential for maintaining system performance.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial inverters.
- Power converters.
- UPS systems.
- Renewable energy equipment.
- Industrial automation panels.
Technical Specifications
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| Device Type | Fuse link | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Manufacturer | Mersen | |
| Series | Protistor® | |
| Model | B221008 | |
| Product type | High-speed semiconductor fuse | |
| Standard | BS88-4 | |
| Application | Semiconductor protection | |
| Construction | Ceramic body with silver fuse elements | |
| Breaking capacity | Up to 200 kA (series dependent) | |
| Protection | Current limiting | |
| Mounting | Compatible BS88 fuse holders | |
| Installation | Professional installation recommended | |
| Compatibility | Verify electrical ratings against the original fuse before replacement. |
Frequently Asked Questions
What is the Mersen B221008 used for?
The Mersen B221008 is a high-speed semiconductor fuse designed to protect power electronic equipment from damaging short-circuit currents.
Which equipment is it suitable for?
It is commonly used in industrial drives, converters, UPS systems, renewable energy equipment and other semiconductor-based power electronics.
Why use a semiconductor fuse instead of a standard fuse?
High-speed semiconductor fuses operate significantly faster than conventional fuses, providing superior protection for sensitive semiconductor devices.
Does the B221008 provide current limiting?
Yes. The fuse is designed with current-limiting characteristics that help minimise the energy released during fault conditions.
Should electrical ratings be verified before replacement?
Yes. Always confirm the current rating, voltage rating, fuse class and physical dimensions against the original fuse and equipment manufacturer's documentation before installation.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, electrical engineers and panel builders for protecting critical power electronic equipment in demanding industrial applications.
