Bussmann 170M3497 Eaton Series High-Speed Square Body Fuse, Class aR
The Bussmann 170M3497 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding industrial power circuits. Rated 1300V (UL) and 1250V (IEC) at 350A with a 100 kAIC interrupting rating, this Class aR fuse features a square body with flush end contacts for compact, high-density mounting. UL Recognized and CE Marked, it delivers fast-acting overcurrent protection engineered to safeguard sensitive semiconductor devices in power electronics and drive systems.
Key Features
- Amperage Rating: 350A for high-current semiconductor protection circuits.
- Voltage Rating: 1300V (UL) / 1250V (IEC) suited to demanding power electronics applications.
- Interrupting Rating: 100 kAIC for reliable fault clearing in high fault-current systems.
- Utilization Category: Class aR (accompanied semiconductor protection), designed to protect semiconductor devices such as SCRs and diodes when coordinated with upstream branch-circuit protection.
- Fuse Shape: Square body construction with flush end contacts for compact, busbar-style mounting.
- I²t Characteristics: Clearing I²t of 165000 A²s at 1000V and 220000 A²s at 1250V, with a Pre-Arc I²t of 27000 A²s, supporting precise coordination with semiconductor device ratings.
- Watt Losses: 65W power dissipation rating for accurate thermal system design.
- Compact Dimensions: 170 mm width x 96 mm length/depth x 50 mm height at 186 g, suited to high-density panel layouts.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 350 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Clearing I2t: 165000 at 1000 V, 220000 at 1250 V
- Compliances: CE Marked
- Fuse Shape: Square body, flush end contacts
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre Arc I2t: 27000
- Product Height: 50 mm
- Product Length/Depth: 96 mm
- Product Weight: 186 g
- Product Width: 170 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1250 V
- Voltage Type: AC
- Watt Losses: 65 W
Typical Applications
- Semiconductor Protection Circuits
- Power Electronics and Drive Systems
- Industrial High-Speed Fuse Panels
- Motor Control and Rectifier Protection
- Commercial and Industrial Electrical Installations
Why Bussmann?
Bussmann by Eaton is a recognized leader in circuit protection, and the 170M3497 reflects that engineering standard with a UL Recognized, CE Marked square body fuse built for demanding semiconductor protection duty. Its Class aR utilization category and defined I²t characteristics support precise coordination with sensitive power electronics, helping ensure code-compliant, reliable performance in professional industrial installations.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 350 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 165000 at 1000 V, 220000 at 1250 V
- Compliances:
- CE Marked
- Fuse Indicator:
- Other
- Fuse Shape:
- Square body, flush end contacts
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 100 kAIC
- Mounting Method:
- Flush
- Packaging Type:
- Standard
- Pre Arc I2t:
- 27000
- Product Height:
- 50 mm
- Product Length Depth:
- 96 mm
- Product Weight:
- 186 g
- Product Width:
- 170 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1250 V
- Voltage Type:
- AC
- Watt Losses:
- 65 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse