Bussmann 170M3242 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,224.75
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Bussmann 170M3242 Eaton Series High Speed Square Body Fuse, Class aR

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Model: 170M3242

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

$1,224.75
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Bussmann 170M3242 Eaton Series High Speed Square Body Fuse, Class aR

The Bussmann 170M3242 is an Eaton Bussmann series high speed square body fuse engineered for semiconductor protection in demanding industrial power electronics. Rated 700V (UL) / 690V (IEC), 125A, and 100 kAIC, this Class aR fuse is built to DIN 43 620 dimensions with a square body and slotted center bolted tags for reliable, low-resistance termination. As an accompanied semiconductor protection device, it is designed to work alongside semiconductor components to guard against damaging short-circuit currents in high-power AC circuits.

Key Features

  • Electrical Rating: 700V (UL) / 690V (IEC), 125A, 100 kAIC interrupt rating, 1250V voltage rating, AC voltage type.
  • Class aR Utilization Category: Accompanied semiconductor protection built to DIN 43 620 standard dimensions.
  • Square Body Construction: Square body fuse shape with slotted center bolted tags for secure, low-resistance connections.
  • I2t Ratings: Pre-arc I2t of 1450 and clearing I2t of 9000 at 1000V / 11500 at 1250V for precise protection coordination.
  • Watt Losses: Rated at 35W.
  • Compact Dimensions: 65 mm height, 305 mm length/depth, 145 mm width, 72 g weight.
  • Application: Purpose-built for semiconductor protection in industrial power electronics.
  • Termination: Insulated Metal Gripping Lugs (IMGL) not equipped on this configuration.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 125 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t: 9000 at 1000 V, 11500 at 1250 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, slotted center bolted tags
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Pre Arc I2t: 1450
  • Product Height: 65 mm
  • Product Length Depth: 305 mm
  • Product Weight: 72 g
  • Product Width: 145 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 1250 V
  • Voltage Type: AC
  • Watt Losses: 35 W

Typical Applications

  • Semiconductor Device Protection
  • Industrial Power Electronics and Drive Systems
  • High-Speed Circuit Protection (Class aR Accompanied Protection)
  • DIN 43 620 Standard Fuse Applications

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the 170M3242 reflects that standard with UL Recognized and CE Marked compliance, robust square body construction, and precise Class aR semiconductor protection performance. Engineers specify this high speed fuse where accurate I2t coordination and a 100 kAIC interrupt rating are essential for protecting sensitive power electronics equipment.

Manufacturer Resources

Product Specs

Amperage Rating:
125 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
9000 at 1000 V, 11500 at 1250 V
Compliances:
CE Marked
Fuse Indicator:
Other
Fuse Shape:
Square body, slotted center bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
100 kAIC
Mounting Method:
DIN 43 620
Packaging Type:
Standard
Pre Arc I2t:
1450
Product Height:
65 mm
Product Length Depth:
305 mm
Product Weight:
72 g
Product Width:
145 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1250 V
Voltage Type:
AC
Watt Losses:
35 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M3242 – Frequently Asked Questions

How fast can I get the Bussmann 170M3242 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 170M3242 come with a warranty?
Absolutely. The Bussmann 170M3242 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 170M3242?
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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