Bussmann 170M4440 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,513.80
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Bussmann 170M4440 Eaton Series High-Speed Square Body Fuse, Class aR, 250A

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Model: 170M4440

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

$1,513.80
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Bussmann 170M4440 Eaton Series High-Speed Square Body Fuse, Class aR, 250A

The Bussmann 170M4440 is an Eaton Bussmann series high-speed square body fuse engineered for demanding power electronics protection, rated 700V (UL) / 690V (IEC) at 250A with a 100 kAIC interrupt rating. Built in a compact square body with flush end contacts, this Class aR fuse is designed for accompanied semiconductor protection applications where fast, reliable clearing is essential. Its high-speed construction and robust ratings make it a dependable choice for protecting sensitive power semiconductor devices in industrial and commercial systems.

Key Features

  • Voltage Rating: 700V (UL), 690V (IEC) for compatibility across both UL and IEC-rated electrical systems.
  • Amperage Rating: 250A rated current delivers dependable overcurrent protection for connected equipment.
  • Interrupt Rating: 100 kAIC high interrupting capacity supports safe operation under demanding fault-current conditions.
  • Fuse Shape: Square body with flush end contacts for compact, space-saving mounting in high-density panels.
  • Utilization Category: Class aR (accompanied semiconductor protection) designed specifically to safeguard power semiconductor devices.
  • Clearing I2t: 46000 at 1000V, 61500 at 1250V, with a pre-arc I2t of 7750 for predictable fast-clearing performance.
  • Watt Losses: 60W rated power dissipation for accurate thermal system design.
  • Dimensions: 51 mm height, 160 mm length/depth, 70 mm width for straightforward panel and holder fit verification.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 250 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t: 46000 at 1000 V, 61500 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: 7750
  • Product Height: 51 mm
  • Product Length Depth: 160 mm
  • Product Weight: .575 g
  • Product Width: 70 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 1250 V
  • Voltage Type: AC
  • Watt Losses: 60 W

Typical Applications

  • Semiconductor Protection Circuits
  • High-Speed Overcurrent Protection
  • Industrial Power Electronics
  • Panelboard and Switchgear Protection
  • Motor Drive and Rectifier Protection

Why Bussmann?

Bussmann engineers the 170M4440 with a UL Recognized, CE Marked construction and a 100 kAIC interrupt rating, giving electrical professionals confidence in demanding semiconductor protection applications. The Class aR utilization category and precise clearing I2t characteristics reflect Eaton Bussmann's engineering standards for fast, code-compliant overcurrent protection in industrial power electronics.

Manufacturer Resources

Product Specs

Amperage Rating:
250 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
46000 at 1000 V, 61500 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:
7750
Product Height:
51 mm
Product Length Depth:
160 mm
Product Weight:
.575 g
Product Width:
70 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1250 V
Voltage Type:
AC
Watt Losses:
60 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M4440 – Frequently Asked Questions

How fast can I get the Bussmann 170M4440 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 170M4440 come with a warranty?
Absolutely. The Bussmann 170M4440 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 170M4440?
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
Why buy the Bussmann 170M4440 from ZenSupply?
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