Bussmann 170M5208 High Speed S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,390.84
Image coming soon

Bussmann 170M5208 High Speed Square Body Fuse, Class aR, 400A

(No reviews yet) Write a Review

Model: 170M5208

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

$1,390.84
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 170M5208 High Speed Square Body Fuse, Class aR, 400A

The Bussmann 170M5208 is an Eaton Bussmann series high speed square body fuse engineered for semiconductor protection in demanding power electronic circuits. Rated 1250V (IEC) / 1300V (UL) with a 400A amperage rating and a 200 kAIC interrupting rating, this Class aR fuse is built to DIN 43 620 dimensions with blade end x blade end connections for reliable installation in high-speed fuse holders. A top fuse status indicator allows for quick visual confirmation of fuse condition, helping maintenance teams identify a blown fuse without removing it from service.

Key Features

  • Amperage Rating: 400A for high-current semiconductor circuit protection.
  • Voltage Rating: 1250V (IEC) / 1300V (UL), with a 690V AC voltage rating listed for the fuse element.
  • Interrupting Rating: 200 kAIC for dependable clearing performance under high fault-current conditions.
  • Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of power semiconductors.
  • Fuse Shape: Square body with slotted center bolted tags for secure blade end x blade end mounting.
  • Status Indicator: Top fuse status indicator for fast visual confirmation of fuse condition.
  • Standard: Constructed to DIN 43 620 dimensional standard for compatibility with standard high-speed fuse holders.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 400 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t: 74000 at 660 V
  • Clearing Loss: 130
  • Compliances: CE Marked
  • Fuse Shape: Square body, slotted center bolted tags
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Pre Arc I2t: 1100
  • Product Height: 66 mm
  • Product Length Depth: 286 mm
  • Product Weight: 622.6666667 g
  • Product Width: 165 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 690 V
  • Voltage Type: AC

Typical Applications

  • Semiconductor Protection in Power Electronic Circuits
  • High-Speed Fault Current Interruption
  • Variable Frequency Drives and Rectifier Systems
  • Industrial Power Electronic Equipment
  • Coordinated Protection Ahead of Power Semiconductors

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170M5208 reflects that standard with a Class aR, DIN 43 620 square body construction rated for 400A and 200 kAIC. Its UL Recognized and CE Marked compliance, combined with a top fuse status indicator, supports code-compliant, serviceable protection for semiconductor and power electronic applications where reliable high-speed interruption is essential.

Manufacturer Resources

Product Specs

Amperage Rating:
400 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
74000 at 660 V
Clearing Loss:
130
Compliances:
CE Marked
Connection:
Blade end x blade end
Fuse Indicator:
Top fuse status indicator
Fuse Shape:
Square body, slotted center bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
200 kAIC
Mounting Method:
DIN 43 620
Packaging Type:
Standard
Pre Arc I2t:
1100
Product Height:
66 mm
Product Length Depth:
286 mm
Product Weight:
622.6666667 g
Product Width:
165 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
690 V
Voltage Type:
AC
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M5208 – Frequently Asked Questions

How fast can I get the Bussmann 170M5208 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 170M5208 come with a warranty?
Absolutely. The Bussmann 170M5208 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 170M5208?
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 170M5208 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.
!