Bussmann 170M-369 Class aR Hig...
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$1,093.39
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Bussmann 170M-369 Class aR High-Speed Square Body Fuse, 1250V, 100 kAIC

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Model: 170M3694

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

$1,093.39
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Bussmann 170M-369 Class aR High-Speed Square Body Fuse, 1250V, 100 kAIC

The Bussmann 170M-369 Class aR High-Speed Square Body Fuse is an Eaton Bussmann series fuse engineered for accompanied semiconductor protection in demanding AC power systems. Built with a square body and center bolted tags, this Class aR fuse is available in amperage ratings from 200A to 315A, with a shared 1250V voltage rating and a 100 kAIC interrupting rating for dependable short-circuit protection across the range. IEC rated and CE marked, the 170M-369 series is designed to safeguard sensitive semiconductor devices in industrial and commercial power electronics applications where fast, reliable clearing is essential.

Key Features

  • Amperage Rating: Offered in 200A and 315A ratings so you can match the fuse to accompanied semiconductor protection requirements.
  • Voltage Rating: 1250V AC voltage rating suited for demanding industrial power distribution systems.
  • Interrupting Rating: 100 kAIC interrupting capacity delivers dependable protection against high-magnitude short-circuit currents.
  • High-Speed Class aR Design: Purpose-built for accompanied semiconductor protection, helping shield sensitive power electronics from damaging fault currents.
  • Square Body Construction: Square body with center bolted tags for a secure, low-resistance connection in the fuse holder or mounting assembly.
  • Application-Specific Protection: Engineered for semiconductor protection, making it well suited to power conversion and industrial drive equipment.
  • AC Voltage Type: Rated for AC voltage systems for compatibility with standard industrial power circuits.

Certifications & Compliance

  • IEC Rated
  • CE Marked

Technical Specifications

  • Voltage Type: AC
  • Voltage Rating: 1250V
  • Interrupting Rating: 100 kAIC
  • Utilization Category: aR (accompanied semiconductor protection)
  • Fuse Shape: Square body, center bolted tags
  • Insulated Metal Gripping Lugs Imgl: No
  • Packaging Type: Standard

Typical Applications

  • Semiconductor Device Protection
  • Power Conversion and Rectifier Equipment
  • Industrial and Commercial Electrical Systems
  • High-Speed Circuit Protection for Power Electronics
  • IEC-Compliant International Power Installations

Why Bussmann?

Bussmann, an Eaton series, builds the 170M-369 Class aR fuse with square body, center bolted tag construction and a 100 kAIC interrupting rating to deliver dependable, code-compliant short-circuit protection for semiconductor devices across its 200A-315A rating range. Backed by IEC rating and CE marking, this high-speed fuse is manufactured to help protect sensitive power electronics in demanding professional electrical installations.

Manufacturer Resources

Product Specs

Product Weight:
643.5 g
Interrupt Rating:
100 kAIC
Department:
Electrical
Product Details:
Fuse
Voltage Type:
AC
Packaging Type:
Standard
Voltage Rating:
1250V
Product Subgroup:
Other Fuses
Certifications:
IEC Rated
Class:
Class aR
Utilization Category:
aR (accompanied semiconductor protection)
Product Group:
Fuses
Product Type:
Fuse
Insulated Metal Gripping Lugs Imgl:
No
Application:
semiconductor protection
Compliances:
CE Marked
Fuse Shape:
Square body, center bolted tags
Amperage Rating:
200A-315A
Series:
170M-369
Listing:
CE Marked
Standards:
IEC Rated

Bussmann 170M3694 – Frequently Asked Questions

1) What amp ratings does the Bussmann 170M-369 square body fuse come in, and what are the part numbers?
Two ratings are offered in the 170M-369 group: 200A, ordered as 170M3694, and 315A, ordered as 170M3696. Both share the same 1250V AC rating and the same 100 kAIC interrupting rating, so stepping between them changes only the current rating, not the voltage or fault withstand.
2) Can I use an aR fuse like the 170M-369 as the only protection on my drive circuit?
No. aR stands for accompanied semiconductor protection, which means it clears short circuits only and has to work alongside another device, typically a breaker or gG fuse, for overload protection. If you need a fuse that handles both overload and short circuit on its own, you want a gR or gS class fuse instead, not the 170M-369.
3) Will a 1250V fuse work on a 690V or 480V industrial system?
Yes, on AC systems. The 1250V rating on the 170M-369 is a maximum, so applying it at 690V or 480V is fine from a voltage standpoint. What you cannot do is move it to a DC circuit, this fuse is rated for AC voltage only, and high speed fuses carry separate and much lower DC ratings.
4) Is the Bussmann 170M-369 fuse UL listed or IEC rated?
The 170M-369 is IEC rated and CE marked. That makes it the right choice for IEC-specified panels and export equipment. If your job requires a UL listed semiconductor fuse for a North American listed assembly, confirm the approval your inspector wants matches IEC and CE before you specify it.
5) What is this fuse actually protecting in a rectifier or VFD?
Its job is the semiconductors, the diodes, SCRs and IGBTs in power conversion equipment. High speed fuses clear far faster than conventional fuses so the let-through energy stays below what the silicon can survive. That is why the 170M-369 is sold for semiconductor protection rather than general feeder or motor branch circuit duty.
How fast can I get the Bussmann 170M3694 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 170M3694 come with a warranty?
Absolutely. The Bussmann 170M3694 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 170M3694?
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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