Bussmann 170M-669 High-Speed S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,181.83
Bussmann 170M-669 High-Speed Square Body Fuse, Class aR

Bussmann 170M-669 High-Speed Square Body Fuse, Class aR

(No reviews yet) Write a Review

Model: 170M6698

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

$2,181.83
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Bussmann 170M-669 High-Speed Square Body Fuse, Class aR

The Bussmann 170M-669 High-Speed Square Body Fuse is an Eaton Bussmann series Class aR fuse engineered for accompanied semiconductor protection in demanding industrial power circuits. Rated 660V AC with a 100 kAIC interrupting rating, this square body fuse features a blade end x DIN 43-620 blade end termination for compatibility with standard semiconductor fuse holders. This family is available in 700A, 800A, 1000A, 1250A, and 1400A amp ratings, giving engineers a scalable range of high-speed protection for semiconductor devices and power electronics.

Key Features

  • Amp Rating Range: Available in 700A, 800A, 1000A, 1250A, and 1400A ratings to match semiconductor protection requirements across a range of load currents.
  • Voltage Rating: 660V AC for use in industrial power and semiconductor protection circuits.
  • Interrupting Rating: 100 kAIC interrupting capacity delivers high-speed clearing of fault currents.
  • Utilization Category: Class aR (accompanied semiconductor protection) design for partial-range protection of semiconductor devices.
  • Connection Type: Blade end x DIN 43-620 blade end termination for direct mounting into compatible fuse holders and disconnects.
  • Durable Construction: Square body fuse shape with center bolted tags for a secure, low-resistance connection.
  • Compact Footprint: 95 mm width x 76 mm height x 168 mm depth body dimensions.

Certifications & Compliance

  • CE Marked

Technical Specifications

  • Voltage Type: AC
  • Product Width: 95 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Packaging Type: Standard
  • Fuse Shape: Square body, center bolted tags
  • Product Height: 76 mm
  • Application: semiconductor protection
  • Insulated Metal Gripping Lugs Imgl: No
  • Compliances: CE Marked
  • Product Length Depth: 168 mm

Typical Applications

  • Semiconductor Protection Circuits
  • High-Speed Fault Current Interruption
  • Industrial Power Distribution Systems
  • Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann is a trusted name in circuit protection, and this Eaton Bussmann series high-speed fuse is built to Class aR utilization category standards for accompanied semiconductor protection. With a 100 kAIC interrupting rating and CE marking, it delivers the fast-acting, code-compliant performance electrical professionals need when protecting semiconductor devices and power electronics in industrial systems.

Manufacturer Resources

Product Specs

Product Group:
Fuses
Class:
Class aR
Voltage Type:
AC
Product Width:
95 mm
Utilization Category:
aR (accompanied semiconductor protection)
Packaging Type:
Standard
Product Type:
Fuse
Interrupt Rating:
100 kAIC
Fuse Shape:
Square body, center bolted tags
Product Height:
76 mm
Product Details:
Fuse
Application:
semiconductor protection
Insulated Metal Gripping Lugs Imgl:
No
Product Subgroup:
Other Fuses
Compliances:
CE Marked
Product Length Depth:
168 mm
Department:
Electrical
Voltage Rating:
660V
Amperage Rating:
700A-1400A
Listing:
CE Marked
Configuration:
Square Body, Center Bolted Tags

Bussmann 170M6698 – Frequently Asked Questions

1) Will a Bussmann 170M-669 fuse fit my existing square body fuse holder?
The 170M-669 is a square body fuse with center bolted tags and a blade end x DIN 43-620 blade end termination, so it bolts into holders and disconnects built for DIN 43-620 blade-style semiconductor fuses. Body dimensions are 95 mm wide, 76 mm high and 168 mm deep, so confirm your holder centers and enclosure clearance match that footprint before you order.
2) What amp ratings does the Bussmann 170M-669 fuse come in, and what part number do I order?
Five ratings: 700A (170M6695), 800A (170M6696), 1000A (170M6698), 1250A (170M6700) and 1400A (170M6701). All share the same 660V AC rating, Class aR characteristic and square body form, so sizing is purely a matter of the load current and the semiconductor device you are protecting.
3) Is a Class aR fuse the right choice, or do I need a gR fuse?
Class aR is partial-range protection, meaning the 170M-669 clears short circuit faults only and does not protect against sustained overloads. That is why it is called accompanied semiconductor protection: it has to work alongside an overload device such as the drive's electronic trip or a separate overload relay. If you need one fuse to handle both overload and short circuit in the same branch, an aR fuse is the wrong utilization category and you should be specifying a full-range gR/gS type instead.
4) Can I use the 170M-669 on a 690V drive?
No. The 170M-669 is rated 660V AC, so applying it on a 690V system exceeds its voltage rating and the fuse cannot be relied on to clear safely. For 690V circuits you need a fuse rated at or above that system voltage. On circuits at 660V or below it carries a 100 kAIC interrupting rating.
5) What is this Bussmann square body fuse actually used to protect?
It protects semiconductors, the diodes, SCRs and IGBTs inside VFDs, DC drives, rectifiers, soft starters and power converters. Those devices fail in microseconds, far faster than a standard branch circuit fuse can clear, which is why a high-speed aR fuse is used on the input or DC link. It is not a substitute for the panel's branch circuit protective device on general feeders.
6) Does the Bussmann 170M-669 have insulated gripping lugs for hot handling?
No, it does not include insulated metal gripping lugs (IMGL). Replacement is a bolted-connection job with the circuit de-energized and locked out, using the center bolted tags. If your maintenance procedure depends on an IMGL version for fuse handling, specify a different variant of the 170M family.
7) What approvals does the Bussmann 170M-669 carry?
CE marking is the compliance listed for the 170M-669. For projects specifying North American listings, check that CE marking satisfies the approval language on your submittal, since that is the mark this fuse carries.
How fast can I get the Bussmann 170M6698 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 170M6698 come with a warranty?
Absolutely. The Bussmann 170M6698 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 170M6698?
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
Why buy the Bussmann 170M6698 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!