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Bussmann 170M3438 Eaton Series High-Speed Square Body Fuse, 50A Class aR
The Bussmann 170M3438 is an Eaton series high-speed square body fuse engineered for demanding semiconductor protection applications, rated 50A at up to 1250V AC with a 100 kAIC interrupt rating. Its Class aR utilization category makes it ideal for accompanied semiconductor protection, while the square body design with flush end contacts supports Flush, Standard mounting configurations. Backed by UL Recognized and CE Marked compliance, this fuse delivers reliable, code-compliant overcurrent protection for power electronics and industrial drive systems.
Key Features
- Amperage Rating: 50A rated for reliable overcurrent protection in high-speed circuits.
- Voltage Rating: 1250V AC voltage rating supports demanding semiconductor protection applications.
- Interrupt Rating: 100 kAIC high interrupting capacity for robust fault clearing.
- Utilization Category: Class aR (accompanied semiconductor protection) for use alongside semiconductor devices.
- Fuse Shape: Square body with flush end contacts in a Flush, Standard mounting style.
- Clearing I2t: 815 at 1000V and 1100 at 1250V for predictable current-limiting performance.
- Pre-Arc I2t: Rated at 135 for consistent fuse operation.
- Watt Losses: Low 15W watt loss rating helps minimize heat generation in the circuit.
Certifications & Compliance
- UL Recognized
- CE Marked
Technical Specifications
- Amperage Rating: 50 A
- Application: semiconductor protection
- Certifications: UL Recognized
- Clearing I2t: 815 at 1000 V, 1100 at 1250 V
- Compliances: CE Marked
- Fuse Shape: Square body, flush end contacts
- Insulated Metal Gripping Lugs (IMGL): No
- Pre Arc I2t: 135
- Product Height: 60 mm
- Product Length Depth: 92 mm
- Product Weight: .885 g
- Product Width: 163 mm
- Utilization Category: aR (accompanied semiconductor protection)
- Voltage Rating: 1250 V
- Voltage Type: AC
- Watt Losses: 15 W
Typical Applications
- Semiconductor Protection
- Power Electronics and Drive Systems
- Industrial and Commercial Electrical Systems
- High-Speed Circuit Protection
Why Bussmann?
Bussmann by Eaton engineers high-speed fuses to demanding standards, and the 170M3438 is UL Recognized and CE Marked for verified performance in critical semiconductor protection roles. With a square body, flush end contact design and a 100 kAIC interrupt rating, this fuse is built to deliver dependable, code-compliant overcurrent protection for professional electrical and power electronics applications.
Manufacturer Resources
Product Specs
- Amperage Rating:
- 50 A
- Application:
- semiconductor protection
- Certifications:
- UL Recognized
- Class:
- Class aR
- Clearing I2t:
- 815 at 1000 V, 1100 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:
- 135
- Product Height:
- 60 mm
- Product Length Depth:
- 92 mm
- Product Weight:
- .885 g
- Product Width:
- 163 mm
- Utilization Category:
- aR (accompanied semiconductor protection)
- Voltage Rating:
- 1250 V
- Voltage Type:
- AC
- Watt Losses:
- 15 W
- Product Group:
- Fuses
- Department:
- Electrical
- Product Subgroup:
- Other Fuses
- Product Type:
- Fuse
- Product Details:
- Fuse
Bussmann 170M3438 – Frequently Asked Questions
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Does the Bussmann 170M3438 come with a warranty?
Absolutely. The Bussmann 170M3438 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Bussmann 170M3438?
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