Bussmann 170M3471 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,052.65
Bussmann 170M3471 Eaton series high speed square body fuse, 700V (UL), 690V (IEC), 500A, 200 kAIC, Other, Fuse, Class aR, Flush - 170M3471

Bussmann 170M3471 Eaton Series High-Speed Square Body Fuse, Class aR, 700V/690V, 500A

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Model: 170M3471
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Bussmann 170M3471 Eaton Series High-Speed Square Body Fuse, Class aR, 700V/690V, 500A

The Bussmann 170M3471 is an Eaton Bussmann series high-speed square body fuse engineered for semiconductor protection in demanding power electronics applications. Rated 700V (UL) / 690V (IEC) AC and 500A with a 200 kAIC interrupting rating, this Class aR fuse features a square body, flush end contact design for a secure, low-resistance connection. Built to the aR utilization category (accompanied semiconductor protection), it delivers the fast-clearing performance needed to safeguard sensitive power semiconductor devices in industrial equipment.

Key Features

  • Amperage Rating: 500A high-speed rating for fast-acting semiconductor circuit protection.
  • Voltage Rating: 700V (UL) / 690V (IEC) AC rating supports use in high-voltage power electronics systems.
  • Interrupting Rating: 200 kAIC delivers high fault-current interrupting capability.
  • Utilization Category: Class aR (accompanied semiconductor protection) for coordinated protection of power semiconductor devices.
  • Fuse Shape: Square body construction with flush end contacts for secure, low-resistance mounting.
  • Voltage Type: AC-rated for alternating current power electronics applications.
  • Watt Losses: 83W power loss rating at rated current.

Certifications & Compliance

  • UL Rated, 700V
  • IEC Rated, 690V
  • CE Marked

Technical Specifications

  • Amperage Rating: 500 A
  • Application: semiconductor protection
  • Certifications: IEC Rated
  • Clearing I2t: 180000 at 660 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, flush end contacts
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Pre Arc I2t: 185
  • Product Height: 50 mm
  • Product Length Depth: 60 mm
  • Product Weight: 44.33333333 g
  • Product Width: 43 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 690 V
  • Voltage Type: AC
  • Watt Losses: 83 W

Typical Applications

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

Why Bussmann?

The Eaton Bussmann series 170M3471 combines a rugged square body, flush-end contact design with a Class aR utilization rating built specifically for accompanied semiconductor protection. Backed by UL and IEC voltage ratings, a 200 kAIC interrupting rating, and CE marking, this fuse delivers the fast-clearing, code-compliant performance electrical professionals rely on for protecting power semiconductor devices in demanding industrial applications.

Manufacturer Resources

Product Specs

Amperage Rating:
500 A
Application:
semiconductor protection
Certifications:
IEC Rated
Class:
Class aR
Clearing I2t:
180000 at 660 V
Compliances:
CE Marked
Fuse Indicator:
Other
Fuse Shape:
Square body, flush end contacts
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
200 kAIC
Mounting Method:
Flush
Packaging Type:
Standard
Pre Arc I2t:
185
Product Height:
50 mm
Product Length Depth:
60 mm
Product Weight:
44.33333333 g
Product Width:
43 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
690 V
Voltage Type:
AC
Watt Losses:
83 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M3471 – Frequently Asked Questions

1) Can I use the Bussmann 170M3471 to protect a standard motor branch circuit or feeder?
No. The 170M3471 is a Class aR high-speed fuse, and aR means accompanied semiconductor protection: it protects diodes, thyristors and IGBTs and must be used alongside another device that handles overload. It will not give you the time-current characteristic a motor branch circuit or feeder needs. Use it on rectifier, converter and drive circuits where a semiconductor is the thing being protected.
2) What voltage can the Bussmann 170M3471 500A fuse actually be applied at in a UL panel versus an IEC machine?
Two numbers, one fuse. It carries a 700V UL AC rating and a 690V IEC AC rating, so a UL-listed panel can apply it to 700V AC and an IEC-built machine to 690V AC. It is AC-rated only, so do not apply it to a DC link without a DC-rated fuse instead.
3) Will the 170M3471 fit my existing square body fuse holder, and how does it mount?
Mounting is flush end contact, square body, which means it bolts between flat busbar pads rather than clipping into a cylindrical holder. Body size is 50 mm high, 60 mm long/deep and 43 mm wide. Measure your existing pad centers and body opening against those numbers before ordering, because square body fuses are not interchangeable across body sizes.
4) What I2t figures do I need to coordinate this fuse with my thyristor or diode?
For semiconductor coordination the 170M3471 publishes a clearing I2t of 180,000 at 660 V and a pre-arc I2t of 185. Compare the clearing I2t against the I2t withstand of the diode or thyristor you are protecting; the device rating must exceed the fuse clearing I2t at your applied voltage for the semiconductor to survive a fault.
5) Does the 170M3471 have insulated metal gripping lugs for hot handling?
No, the 170M3471 is supplied without insulated metal gripping lugs (IMGL). If your maintenance procedure calls for pulling the fuse by insulated lugs, you need an IMGL version of the square body fuse instead. With this one, plan on a bolted change-out with the circuit isolated.
6) Is 200 kAIC enough interrupting capacity for a high fault current industrial drive installation?
The 170M3471 interrupts up to 200 kAIC, which covers most industrial drive and rectifier services where available fault current is high. The number to check is your calculated available fault current at the fuse location; as long as it sits at or below 200 kA at the applied voltage, this fuse is rated for the duty.
7) How much heat does a 500A Bussmann 170M3471 put into an enclosure?
Figure 83 W of power loss at rated current for each 170M3471. On a three-phase converter with three fuses that is about 249 W of heat inside the cabinet, which is the number to hand your enclosure cooling calculation.
8) What part number should I order and how does it ship for MRO stock?
Order by manufacturer part number 170M3471, the Eaton Bussmann series high-speed square body fuse at 500A. Packaging is standard, and each fuse weighs roughly 44 g, so it is easy to hold several on the shelf as spares for drive and rectifier lines.
How fast can I get the Bussmann 170M3471 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 170M3471 come with a warranty?
Absolutely. The Bussmann 170M3471 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 170M3471?
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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