Bussmann 170M3248 Eaton Series...
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$1,594.01
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Bussmann 170M3248 Eaton Series High-Speed Square Body Fuse, 400A, Class aR

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Model: 170M3248

In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,594.01
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Bussmann 170M3248 Eaton Series High-Speed Square Body Fuse, 400A, Class aR

The Bussmann 170M3248 is an Eaton series high-speed square body fuse engineered for demanding semiconductor protection applications. Rated 400A with a voltage rating of 700V (UL) and 690V (IEC), this Class aR fuse delivers a 100 kAIC interrupt rating for accompanied semiconductor protection in high fault-current environments. Built to the DIN 43 620 square body configuration with slotted center bolted tags, it is UL Recognized and CE Marked for use in industrial power electronics and drive systems.

Key Features

  • Amperage Rating: 400A high-speed fuse designed for fast-acting overcurrent protection in semiconductor circuits.
  • Voltage Rating: 700V (UL), 690V (IEC), with a 1250V voltage rating for AC applications.
  • Interrupt Rating: 100 kAIC interrupting capacity for reliable performance under high fault-current conditions.
  • Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of power semiconductors.
  • Fuse Shape: Square body construction with slotted center bolted tags per DIN 43 620 for secure mounting and connection.
  • Clearing I2t: 265,000 at 1000V and 335,000 at 1250V for predictable let-through energy characteristics.
  • Pre-Arc I2t: 53,000, supporting precise coordination with upstream and downstream protective devices.
  • Compact Footprint: Product dimensions of 305 mm length, 145 mm width, and 65 mm height at a weight of 73 g.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 400 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t : 265000 at 1000 V, 335000 at 1250 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, slotted center bolted tags
  • Insulated Metal Gripping Lugs Imgl : No
  • Pre Arc I2t : 53000
  • Product Height: 65 mm
  • Product Length Depth: 305 mm
  • Product Weight: 73 g
  • Product Width: 145 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 1250 V
  • Voltage Type: AC
  • Watt Losses: 70 W

Typical Applications

  • Semiconductor Device Protection
  • Power Electronics and Variable Frequency Drives
  • Industrial Rectifier and Converter Circuits
  • High Fault-Current Industrial Power Systems

Why Bussmann?

Bussmann by Eaton is a recognized leader in circuit protection, and the 170M3248 reflects that standard with UL Recognized and CE Marked compliance for coordinated semiconductor protection. Its DIN 43 620 square body design, defined Clearing and Pre-Arc I2t characteristics, and 100 kAIC interrupt rating make it a dependable choice for engineers specifying reliable, code-compliant overcurrent protection in demanding industrial power electronics applications.

Manufacturer Resources

Product Specs

Amperage Rating:
400 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
265000 at 1000 V, 335000 at 1250 V
Compliances:
CE Marked
Fuse Indicator:
Other
Fuse Shape:
Square body, slotted center bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
100 kAIC
Mounting Method:
DIN 43 620
Pre Arc I2t:
53000
Product Height:
65 mm
Product Length Depth:
305 mm
Product Weight:
73 g
Product Width:
145 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1250 V
Voltage Type:
AC
Watt Losses:
70 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M3248 – Frequently Asked Questions

How fast can I get the Bussmann 170M3248 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Bussmann 170M3248 come with a warranty?
Absolutely. The Bussmann 170M3248 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 170M3248?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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