Bussmann 170M4392 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,619.08
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Bussmann 170M4392 Eaton Series High-Speed Square Body Fuse, Class aR, 350A

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Model: 170M4392

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

$1,619.08
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Bussmann 170M4392 Eaton Series High-Speed Square Body Fuse, Class aR, 350A

The Bussmann 170M4392 is an Eaton Bussmann series high-speed square body fuse engineered for demanding power electronics protection, rated 700V (UL) / 690V (IEC) and 350A with a 100 kAIC interrupt rating. Built to Class aR utilization (accompanied semiconductor protection), this fuse features a square body design with flush end contacts for reliable, low-impedance connections. It is purpose-built for semiconductor protection applications where fast clearing and precise current limitation are critical.

Key Features

  • Voltage Rating: 700V (UL) / 690V (IEC), with an additional 1250V AC voltage rating listed for the device, delivering broad compatibility across UL and IEC-rated systems.
  • Amperage Rating: 350A high-speed current rating suited for protecting power semiconductor devices in industrial circuits.
  • Interrupt Rating: 100 kAIC interrupting capacity for demanding fault-current environments.
  • Fuse Shape: Square body construction with flush end contacts for consistent, low-resistance terminations.
  • Utilization Category: Class aR (accompanied semiconductor protection), designed to work alongside other overcurrent protection to safeguard semiconductor devices.
  • I2t Ratings: Pre-arc I2t of 20000 and clearing I2t of 125000 at 1000 V / 165000 at 1250 V for predictable, fast-acting protection coordination.
  • Watt Losses: 70W rated power dissipation.

Certifications & Compliance

  • UL Rated, 700V
  • IEC Rated, 690V
  • CE Marked

Technical Specifications

  • Amperage Rating: 350 A
  • Application: semiconductor protection
  • Certifications: IEC Rated
  • Clearing I2t: 125000 at 1000 V, 165000 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: 20000
  • Product Height: 52 mm
  • Product Length Depth: 73 mm
  • Product Weight: 280.5 g
  • Product Width: 170 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 Rectifier Circuits
  • Industrial High-Speed Fuse Applications
  • UL and IEC-Rated Electrical Systems

Why Bussmann?

Bussmann by Eaton engineers the 170M4392 with IEC-rated and CE-marked construction for dependable performance in semiconductor protection applications. Its Class aR utilization category, defined pre-arc and clearing I2t characteristics, and 100 kAIC interrupt rating make it a dependable choice for professionals protecting power electronics in industrial and commercial installations.

Manufacturer Resources

Product Specs

Amperage Rating:
350 A
Application:
semiconductor protection
Certifications:
IEC Rated
Class:
Class aR
Clearing I2t:
125000 at 1000 V, 165000 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:
20000
Product Height:
52 mm
Product Length Depth:
73 mm
Product Weight:
280.5 g
Product Width:
170 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 170M4392 – Frequently Asked Questions

How fast can I get the Bussmann 170M4392 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 170M4392 come with a warranty?
Absolutely. The Bussmann 170M4392 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 170M4392?
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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