Bussmann 170M4058 Eaton Series High-Speed Square Body Fuse, 200A Class aR
The Bussmann 170M4058 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection, rated 1250V (IEC) and 1300V (UL) with a 200A rating and a 200 kAIC interrupting capacity. Built to the DIN 43 620 standard as a Class aR fuse, it features blade end X blade end terminations on a square body with slotted center bolted tags, plus a top fuse status indicator for quick visual confirmation of fuse condition. Its high-speed clearing characteristics make it well suited for protecting power semiconductors in demanding industrial circuits.
Key Features
- Square Body Design: Slotted center bolted tags with blade end X blade end connections for secure, low-resistance terminations.
- Dual Voltage Rating: Rated 1250V (IEC) and 1300V (UL), with a 690V AC voltage rating, for use across IEC and UL-governed installations.
- High Amperage Handling: 200A continuous rating paired with a 200 kAIC interrupting rating for robust fault current protection.
- Class aR Utilization: Accompanied semiconductor protection design per DIN 43 620, purpose-built for high-speed fault clearing ahead of power semiconductors.
- Fast-Acting Performance: Pre-arc I2t of 1650 and clearing I2t of 11500 at 660V deliver rapid current-limiting action to safeguard sensitive semiconductor loads; clearing loss of 45.
- Top Fuse Status Indicator: Built-in visual indicator flags a blown fuse for faster troubleshooting and reduced downtime.
- Compact, Defined Footprint: Measures 245 mm in length, 142 mm in width, and 62 mm in height, weighing 455 g.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 200 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Clearing I2t: 11500 at 660 V
- Clearing Loss: 45
- Compliances: CE Marked
- Fuse Shape: Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs (IMGL): No
- Packaging Type: Standard
- Pre Arc I2t: 1650
- Product Height: 62 mm
- Product Length/Depth: 245 mm
- Product Weight: 455 g
- Product Width: 142 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 690 V
- Voltage Type: AC
Typical Applications
- Semiconductor Protection Circuits
- High-Speed Fault Current Interruption
- Industrial Power Electronics Equipment
- Power Rectifier and Converter Circuits
Why Bussmann?
Bussmann by Eaton engineers the 170M4058 to the DIN 43 620 standard with a Class aR design specifically for accompanied semiconductor protection, backed by UL Recognition and CE Marking. With a 200 kAIC interrupting rating, dual 1250V (IEC)/1300V (UL) voltage ratings, and a top fuse status indicator, this square body fuse delivers the fast-acting, code-compliant performance that industrial power electronics applications demand.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 200 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 11500 at 660 V
- Clearing Loss:
- 45
- Compliances:
- CE Marked
- Connection:
- Blade end x blade end
- Fuse Indicator:
- Top fuse status indicator
- Fuse Shape:
- Square body, slotted center bolted tags
- Insulated Metal Gripping Lugs Imgl:
- No
- Interrupt Rating:
- 200 kAIC
- Mounting Method:
- DIN 43 620
- Packaging Type:
- Standard
- Pre Arc I2t:
- 1650
- Product Height:
- 62 mm
- Product Length Depth:
- 245 mm
- Product Weight:
- 455 g
- Product Width:
- 142 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 690 V
- Voltage Type:
- AC
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse