Bussmann 170M4391 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,562.81
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Bussmann 170M4391 Eaton Series High-Speed Square Body Fuse, Class aR 315A

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Model: 170M4391

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

$1,562.81
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Bussmann 170M4391 Eaton Series High-Speed Square Body Fuse, Class aR 315A

The Bussmann 170M4391 is an Eaton series high-speed square body fuse engineered for semiconductor protection in demanding power electronics circuits. Rated 700V (UL) / 690V (IEC) at 315A with a 100 kAIC interrupting rating, this Class aR fuse (accompanied semiconductor protection) features flush-end square body contacts and carries UL Recognized and CE Marked compliance for dependable performance in critical drive and rectifier applications.

Key Features

  • Amperage Rating: 315A for high-current semiconductor circuit protection.
  • Voltage Rating: 700V (UL), 690V (IEC), 1250 V max rating, AC voltage type, suited to demanding power distribution systems.
  • Interrupting Rating: 100 kAIC for robust protection against high fault currents.
  • Fuse Shape: Square body with flush end contacts for compact busbar-style mounting.
  • Utilization Category: Class aR (accompanied semiconductor protection) for partial-range protection of semiconductor devices.
  • Clearing I2t: 90000 at 1000 V, 120000 at 1250 V for precise coordination with semiconductor let-through ratings.
  • Pre-Arc I2t: 15000 for fast-acting response to fault conditions.
  • Watt Losses: 65 W rated power dissipation.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 315 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t : 90000 at 1000 V, 120000 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 : 15000
  • Product Height: 52 mm
  • Product Length Depth: 73 mm
  • Product Weight: 559 g
  • Product Width: 170 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 1250 V
  • Voltage Type: AC
  • Watt Losses: 65 W

Typical Applications

  • Semiconductor Protection
  • Power Electronics and Drive Systems
  • Industrial Motor Control Circuits
  • High-Speed Fault Current Interruption
  • Rectifier and Converter Circuit Protection

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the 170M4391 reflects that heritage with its square body construction, 100 kAIC interrupting rating, and Class aR semiconductor protection category. Backed by UL Recognized and CE Marked compliance, this fuse gives engineers dependable, code-compliant protection for sensitive power electronics and semiconductor devices.

Manufacturer Resources

Product Specs

Amperage Rating:
315 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
90000 at 1000 V, 120000 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:
15000
Product Height:
52 mm
Product Length Depth:
73 mm
Product Weight:
559 g
Product Width:
170 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1250 V
Voltage Type:
AC
Watt Losses:
65 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M4391 – Frequently Asked Questions

How fast can I get the Bussmann 170M4391 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 170M4391 come with a warranty?
Absolutely. The Bussmann 170M4391 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 170M4391?
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 170M4391 from ZenSupply?
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