Bussmann 170M3985 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$837.10
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Bussmann 170M3985 Eaton Series High-Speed Square Body Fuse, 125A, Class aR

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Model: 170M3985

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

$837.10
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Bussmann 170M3985 Eaton Series High-Speed Square Body Fuse, 125A, Class aR

The Bussmann 170M3985 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding industrial power circuits. Rated 700V (UL) / 690V (IEC) at 125A with a 150 kAIC interrupting rating, this Class aR fuse is built to DIN 43 620 dimensional standards and features a top fuse status indicator for quick visual verification of fuse condition. Its square body design with slotted, center bolted tags supports reliable, low-resistance connections in high-current semiconductor protection applications.

Key Features

  • Voltage Rating: 700V (UL) / 690V (IEC) for use across both UL and IEC-governed installations.
  • Amperage Rating: 125A continuous current rating suited to semiconductor protection circuits.
  • Interrupting Rating: 150 kAIC high interrupting capacity for demanding fault conditions.
  • Utilization Category: Class aR (accompanied semiconductor protection) fuse designed to protect semiconductor devices in coordination with other overcurrent protection.
  • Fuse Shape: Square body construction with slotted, center bolted tags to DIN 43 620 dimensions for standardized mounting.
  • Status Indicator: Top fuse status indicator provides at-a-glance confirmation of fuse operation.
  • I2t Characteristics: Pre-arc I2t of 1450 and clearing I2t of 8600 at 1000V for precise coordination with semiconductor let-through ratings.
  • Watt Losses: 40W rated power loss.

Certifications & Compliance

  • IEC Rated
  • CE Marked

Technical Specifications

  • Amperage Rating: 125 A
  • Application: semiconductor protection
  • Certifications: IEC Rated
  • Clearing I2t: 8600 at 1000 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: 483.3333333 g
  • Product Width: 145 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 1000 V
  • Voltage Type: AC
  • Watt Losses: 40 W

Typical Applications

  • Semiconductor Device Protection
  • Power Electronics and Drive Systems
  • Industrial Control Panels and Switchgear
  • Rectifier and Converter Circuit Protection

Why Bussmann?

Bussmann by Eaton engineers the 170M3985 to DIN 43 620 dimensional standards with IEC-rated and CE-marked compliance, giving electrical professionals a dependable Class aR fuse for coordinated semiconductor protection. The 150 kAIC interrupting rating and top fuse status indicator support safe, code-compliant performance in demanding industrial power applications.

Manufacturer Resources

Product Specs

Amperage Rating:
125 A
Application:
semiconductor protection
Certifications:
IEC Rated
Class:
Class aR
Clearing I2t:
8600 at 1000 V
Compliances:
CE Marked
Fuse Indicator:
Top fuse status indicator
Fuse Shape:
Square body, slotted center bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
150 kAIC
Mounting Method:
DIN 43 620
Packaging Type:
Standard
Pre Arc I2t:
1450
Product Height:
65 mm
Product Length Depth:
305 mm
Product Weight:
483.3333333 g
Product Width:
145 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1000 V
Voltage Type:
AC
Watt Losses:
40 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M3985 – Frequently Asked Questions

How fast can I get the Bussmann 170M3985 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 170M3985 come with a warranty?
Absolutely. The Bussmann 170M3985 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 170M3985?
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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