Bussmann 170M4394 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,662.51
Image coming soon

Bussmann 170M4394 Eaton Series High-Speed Square Body Fuse, Class aR, 450A

(No reviews yet) Write a Review

Model: 170M4394

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

$1,662.51
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Bussmann 170M4394 Eaton Series High-Speed Square Body Fuse, Class aR, 450A

The Bussmann 170M4394 is an Eaton series high-speed square body fuse designed for semiconductor protection in demanding industrial power systems. This Class aR fuse (accompanied semiconductor protection) is rated 450A with a voltage rating of 700V (UL) and 690V (IEC), delivers a 100 kAIC interrupt rating, and features a square body with flush end contacts for reliable installation. Backed by UL Recognized listing and CE Marked compliance, the 170M4394 delivers fast-acting, precisely coordinated overcurrent protection for professional electrical applications.

Key Features

  • Fuse Shape: Square body construction with flush end contacts for a compact, code-compliant fit.
  • Amperage Rating: 450A for high-current semiconductor protection circuits.
  • Voltage Rating: 700V (UL), 690V (IEC), and 1250V (AC) rating for use across multiple system voltages.
  • Interrupt Rating: 100 kAIC for reliable performance under high fault-current conditions.
  • Utilization Category: Class aR (accompanied semiconductor protection) for coordinated overcurrent protection.
  • Clearing I²t: 250,000 at 1000V and 335,000 at 1250V for precise let-through energy coordination.
  • Pre-Arc I²t: 42,000 for accurate fuse coordination in high-speed applications.
  • Watt Losses: 80W rated power dissipation.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 450 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t : 250000 at 1000 V, 335000 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 : 42000
  • 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: 80 W

Typical Applications

  • Semiconductor Protection Circuits
  • Power Electronics and Rectifier Protection
  • High-Speed Overcurrent Protection for Industrial Equipment
  • Coordinated Protection in Systems Requiring Precise I²t Ratings

Why Bussmann?

Bussmann Eaton series fuses are engineered to UL Recognized and CE Marked standards, giving electrical professionals confidence in verified performance for semiconductor protection duty. With precisely specified pre-arc and clearing I²t ratings plus a 100 kAIC interrupt rating, the 170M4394 supports accurate coordination in high-speed protection schemes. Choose Bussmann for reliable, code-compliant overcurrent protection in demanding industrial power systems.

Manufacturer Resources

Product Specs

Amperage Rating:
450 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
250000 at 1000 V, 335000 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:
42000
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:
80 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M4394 – Frequently Asked Questions

How fast can I get the Bussmann 170M4394 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 170M4394 come with a warranty?
Absolutely. The Bussmann 170M4394 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 170M4394?
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 170M4394 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!