Bussmann 170M4463 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,284.90
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Bussmann 170M4463 Eaton Series High-Speed Square Body Fuse, 450A Class aR

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Model: 170M4463

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

$1,284.90
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Bussmann 170M4463 Eaton Series High-Speed Square Body Fuse, 450A Class aR

The Bussmann 170M4463 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding power electronics applications. Rated 1300V (UL) and 1250V (IEC) with a 450A amperage rating and a 200 kAIC interrupting rating, this Class aR fuse is built with a square body and flush end contacts for compact, bolt-in installation. It is UL Recognized and CE Marked for use across global electrical systems.

Key Features

  • Voltage Rating: Dual-rated 1300V (UL) and 1250V (IEC) for flexibility across UL- and IEC-compliant electrical systems.
  • Amperage Rating: 450A rating supports high-current semiconductor circuit protection.
  • Interrupting Rating: 200 kAIC interrupting capacity provides reliable protection in high fault-current environments.
  • Fuse Shape: Square body construction with flush end contacts for a compact, bolt-in mounting footprint.
  • Utilization Category: Class aR (accompanied semiconductor protection), designed to protect semiconductor devices in circuits that include a backup overcurrent device.
  • Clearing I²t: 120,000 A²s at 660V for predictable let-through energy during fault clearing.
  • Pre-Arc I²t: 17,000 A²s.
  • Watt Losses: 70W power dissipation rating.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 450 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I²t: 120000 at 660 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, flush end contacts
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Pre-Arc I²t: 17000
  • Product Height: 51 mm
  • Product Length/Depth: 70 mm
  • Product Weight: 785 g
  • Product Width: 51 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 690 V
  • Voltage Type: AC
  • Watt Losses: 70 W

Typical Applications

  • Semiconductor Protection
  • Power Electronics and Drive Systems
  • Industrial Motor Control Circuits
  • High Fault-Current Electrical Systems
  • Panelboard and Switchgear Protection

Why Bussmann?

Bussmann by Eaton engineers the 170M4463 for the demanding job of protecting semiconductor devices, backing it with a 200 kAIC interrupting rating, UL Recognized status, and CE Marked compliance. The square body, flush-end-contact design and Class aR utilization category make this fuse a dependable choice for professionals specifying accompanied semiconductor protection in high-current, high fault-current electrical systems.

Manufacturer Resources

Product Specs

Amperage Rating:
450 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
120000 at 660 V
Compliances:
CE Marked
Fuse Indicator:
Other
Fuse Shape:
Square body, flush end contacts
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
200 kAIC
Mounting Method:
Flush
Packaging Type:
Standard
Pre Arc I2t:
17000
Product Height:
51 mm
Product Length Depth:
70 mm
Product Weight:
785 g
Product Width:
51 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
690 V
Voltage Type:
AC
Watt Losses:
70 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M4463 – Frequently Asked Questions

How fast can I get the Bussmann 170M4463 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 170M4463 come with a warranty?
Absolutely. The Bussmann 170M4463 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 170M4463?
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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