Bussmann 170M3772 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,013.49
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Bussmann 170M3772 Eaton Series High-Speed Square Body Fuse, 550A Class aR

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Model: 170M3772

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

$1,013.49
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Bussmann 170M3772 Eaton Series High-Speed Square Body Fuse, 550A Class aR

The Bussmann 170M3772 is an Eaton series high-speed square body fuse engineered for semiconductor protection in demanding industrial power systems. Rated 550A with a voltage rating of 700V (UL) / 690V (IEC), this Class aR fuse delivers a 200 kAIC interrupting rating with blade end x blade end terminations for reliable, high-speed circuit protection. Built with a square body construction and center bolted tags, it is UL Recognized and CE Marked for use in accompanied (backup) protection of power semiconductor devices.

Key Features

  • Amperage Rating: 550A rated for high-current semiconductor protection applications.
  • Voltage Rating: 700V (UL) / 690V (IEC) AC for use in high-voltage industrial power circuits.
  • Interrupting Rating: 200 kAIC provides robust short-circuit protection.
  • Fuse Shape: Square body construction with center bolted tags and blade end x blade end termination.
  • Utilization Category: Class aR (accompanied semiconductor protection) for coordinated backup protection of power semiconductor devices.
  • Let-Through Energy: Clearing I2t of 230000 at 660V and Pre-arc I2t of 34000 for precise current-limiting performance.
  • Watt Losses: 75W.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 550 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t: 230000 at 660 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, center bolted tags
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Pre Arc I2t: 34000
  • Product Height: 60 mm
  • Product Length Depth: 92 mm
  • Product Weight: 176 g
  • Product Width: 163 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 690 V
  • Voltage Type: AC
  • Watt Losses: 75 W

Typical Applications

  • Semiconductor Protection Circuits
  • Accompanied (Backup) Protection of Power Semiconductor Devices
  • High-Speed Industrial Fuse Protection
  • 700V/690V AC Power Distribution Systems

Why Bussmann?

Bussmann by Eaton engineers this high-speed square body fuse for the demanding coordinated protection semiconductor devices require, backed by a 200 kAIC interrupting rating and Class aR utilization category. UL Recognized and CE Marked, the 170M3772 delivers the precise clearing and pre-arc I2t characteristics power electronics designers depend on for code-compliant, reliable circuit protection.

Manufacturer Resources

Product Specs

Amperage Rating:
550 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
230000 at 660 V
Compliances:
CE Marked
Connection:
Blade end x blade end
Fuse Indicator:
Other
Fuse Shape:
Square body, center bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
200 kAIC
Packaging Type:
Standard
Pre Arc I2t:
34000
Product Height:
60 mm
Product Length Depth:
92 mm
Product Weight:
176 g
Product Width:
163 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
690 V
Voltage Type:
AC
Watt Losses:
75 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M3772 – Frequently Asked Questions

How fast can I get the Bussmann 170M3772 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 170M3772 come with a warranty?
Absolutely. The Bussmann 170M3772 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 170M3772?
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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