Bussmann 170M-146 Eaton Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$357.30
Bussmann 170M-146 Eaton Series High-Speed Square Body Fuse, Class aR, 700V

Bussmann 170M-146 Eaton Series High-Speed Square Body Fuse, Class aR, 700V

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Model: 170M1468

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

$357.30
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Bussmann 170M-146 Eaton Series High-Speed Square Body Fuse, Class aR, 700V

The Bussmann 170M-146 Eaton series high-speed square body fuse delivers dedicated semiconductor protection for demanding power electronics, drive, and rectifier applications. Rated 700V per UL standard voltage designation and 690V per IEC standard voltage designation, with a 200 kAIC interrupting rating, this Class aR fuse uses a square body construction with offset bolted tags for secure, low-resistance terminal connections. This fuse family is available in amp ratings from 80A through 250A, letting engineers match the fuse to the specific semiconductor load being protected.

Key Features

  • Amp Rating Range: Available from 80A to 250A so the fuse can be matched to the specific semiconductor protection requirement.
  • Dual Voltage Rating: Rated 700V under UL standard designation and 690V under IEC standard designation for use in both North American and international power systems.
  • High Interrupting Capacity: 200 kAIC interrupting rating delivers robust short-circuit protection for semiconductor circuits.
  • Class aR Utilization Category: Utilization category aR (accompanied semiconductor protection), engineered specifically to protect semiconductor devices rather than general circuit conductors.
  • Square Body, Offset Bolted Tags: Square body fuse shape with offset bolted tag terminals for a compact, high-density mounting footprint.
  • AC Voltage Type: Engineered for AC power systems.
  • Product Height: 40 mm.

Certifications & Compliance

  • Rated 700V per UL standard voltage designation
  • Rated 690V per IEC standard voltage designation
  • Compliances: Contact factory for complete compliance documentation

Technical Specifications

  • Voltage Type: AC
  • Utilization Category: aR (accompanied semiconductor protection)
  • Packaging Type: Standard
  • Fuse Shape: Square body, offset bolted tags
  • Product Height: 40 mm
  • Application: semiconductor protection
  • Insulated Metal Gripping Lugs Imgl: No
  • Compliances: Contact factory

Typical Applications

  • Semiconductor Device Protection
  • Variable Frequency Drives and Power Electronics
  • Industrial Motor Drive Systems
  • Rectifier and Converter Circuits
  • Renewable Energy and Power Conversion Equipment

Why Bussmann?

Bussmann by Eaton is a recognized name in circuit protection, and the 170M series square body fuse is engineered for the demanding job of protecting sensitive semiconductor components. With a 200 kAIC interrupting rating, dual UL/IEC voltage designations, and a Class aR utilization category built specifically for semiconductor protection, this fuse family is suited to the reliability that professional power electronics and drive installations require.

Manufacturer Resources

Product Specs

Product Group:
Fuses
Class:
Class aR
Voltage Type:
AC
Utilization Category:
aR (accompanied semiconductor protection)
Packaging Type:
Standard
Product Type:
Fuse
Interrupt Rating:
200 kAIC
Fuse Shape:
Square body, offset bolted tags
Product Height:
40 mm
Product Details:
Fuse
Application:
semiconductor protection
Insulated Metal Gripping Lugs Imgl:
No
Product Subgroup:
Other Fuses
Compliances:
Contact factory
Department:
Electrical
Voltage Rating:
700V (UL) / 690V (IEC)
Amperage Rating:
80A-250A
Configuration:
Square Body, Offset Bolted Tags
Series:
170M

Bussmann 170M1468 – Frequently Asked Questions

1) Can I use a Bussmann 170M-146 square body fuse as the main branch circuit protection for a panel?
No. The 170M-146 is a Class aR semiconductor fuse, utilization category aR (accompanied semiconductor protection). That means it protects the semiconductor devices (diodes, SCRs, IGBTs) and is not intended to protect general circuit conductors on its own. In practice it goes in series with, or alongside, conventional branch circuit overcurrent protection, not in place of it.
2) What amp ratings does the Bussmann 170M-146 fuse come in?
Five ratings across the 170M-146 family: 80A (170M1466), 125A (170M1468), 160A (170M1469), 200A (170M1470) and 250A (170M1471). All share the same 700V UL / 690V IEC rating and 200 kAIC interrupting capacity, so you size strictly to the semiconductor load you are protecting, not to the voltage.
3) Will a 700V fuse work on a 690V IEC drive system?
Yes. The 170M-146 carries a dual designation: 700V under the UL standard and 690V under IEC. It is the same fuse, rated to both scales, so it drops into North American 480V/600V drive sections and into European 690V systems alike. It is an AC-rated device, so do not apply it on a DC link without a separately published DC rating.
4) How does the 170M-146 fuse mount, and do I need clips or a fuse holder?
It is a square body fuse with offset bolted tags, so it bolts directly to the busbar or terminal pads. No clips and no fuse holder. The offset tags give a low-resistance bolted joint and a tighter mounting footprint than in-line blade tags, which is why these get used in high-density drive stacks. Plan on torqued bolted connections at both ends.
5) How much vertical clearance do I need for the Bussmann 170M-146 in a drive cabinet?
Product height is 40 mm. That is the figure to work from when you are checking clearance to the cabinet door or the next busbar layer in a stacked assembly. Centre-to-centre tag spacing and body length vary with the amp rating, so lay out the bolt pattern from the specific rating you are buying.
6) Does the Bussmann 170M-146 come with insulated metal gripping lugs?
No, the 170M-146 does not have IMGL (insulated metal gripping lugs). The tags are bare offset bolted terminals. If your assembly requires touch-safe insulated gripping lugs for finger protection at the terminations, you need a different variant of the 170M family or separate terminal shrouding.
7) Is a 200 kAIC fuse enough for a high fault current service feeding my VFD?
The 170M-146 interrupts 200 kAIC, which covers the available fault current at essentially any industrial service where this class of fuse is applied. The practical limit is voltage, not current: keep the system at or below 700V AC (UL) / 690V AC (IEC). Above that, this fuse is out of its rating regardless of the fault level.
8) What kinds of equipment is the Bussmann 170M series aR fuse actually used in?
Semiconductor protection duty: variable frequency drives and power electronics, industrial motor drive systems, rectifier and converter circuits, and renewable energy power conversion equipment. Anywhere you have a diode or thyristor bridge that will be destroyed faster than a conventional fuse can clear, the aR fuse is what stands between the fault and the silicon.
9) I need the UL and IEC compliance certificates for a submittal on the 170M-146. What is documented?
The published ratings you can cite on a submittal are 700V per the UL standard voltage designation, 690V per IEC, 200 kAIC interrupting, and utilization category aR. Full compliance documentation for the 170M-146 is issued by the factory, so certificate packages and agency file numbers come from Eaton directly rather than from the catalog data.
How fast can I get the Bussmann 170M1468 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 170M1468 come with a warranty?
Absolutely. The Bussmann 170M1468 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 170M1468?
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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