Product Description
The 170M3811 is a high-speed, square body semiconductor protection fuse from the Eaton Bussmann series. It is designed for fast and reliable protection of power electronics such as drives, rectifiers, UPS systems, and DC common bus applications. With a high interrupting capacity and Class aR characteristics, it ensures safe operation in high-energy industrial systems.
Key Features
- High-speed (ultra-rapid) fuse for semiconductor protection
- Class aR design for short-circuit protection of power electronics
- High interrupting capacity up to 200 kA
- ated for 690V AC / 700V AC systems
- Suitable for AC/DC drives, rectifiers, and UPS systems
- Low I²t value for reduced let-through energy
- DIN 43-620 blade-type square body construction
- Dual-element protection for fast fault clearing
- Excellent DC performance and arc suppression
- Industrial-grade durability for heavy electrical environments
Specifications
- Product Type: High-Speed Semiconductor Fuse
- Model: 170M3811
- Brand: Eaton Bussmann
- Fuse Class: aR (Ultra-fast / semiconductor protection)
- Rated Current: 80A
- Rated Voltage: 690V AC / 700V AC (UL)
- Interrupting Rating: 200 kA
- Fuse Type: NH / Square Body Fuse
- Mounting Type: DIN 43-620 blade contact
- Body Type: Square body, size 1
- Application:
Power converters
Variable speed drives (VFDs)
UPS systems
Rectifiers
DC common bus systems - Standards: IEC / UL recognized
- Construction: High-strength ceramic/sand-filled body with metal blade terminals

