Bussmann 170M-661 Series High ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,664.08
Bussmann 170M-661 Series High Speed Square Body Fuse, Class aR, 690V

Bussmann 170M-661 Series High Speed Square Body Fuse, Class aR, 690V

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Model: 170M6615

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

$1,664.08
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Bussmann 170M-661 Series High Speed Square Body Fuse, Class aR, 690V

Bussmann's Eaton Bussmann series 170M-661 high speed square body fuse delivers reliable Class aR semiconductor protection for demanding power electronics applications. Rated 690V AC with a 200 kAIC interrupt rating, this square body fuse features blade end x blade end terminals with an M6 bolt for secure, direct connection. Engineered for accompanied semiconductor protection, it is available in amp ratings from 700A to 1500A to match a wide range of load requirements.

Key Features

  • Amp Rating Range: Available in ratings from 700A to 1500A to suit a variety of semiconductor protection applications.
  • Interrupt Rating: 200 kAIC for dependable protection against high fault currents.
  • Class aR Protection: Utilization category aR for accompanied semiconductor protection.
  • Blade End Connections: Blade end x blade end terminal configuration with M6 bolt for direct mounting.
  • Square Body Construction: Square body design with center bolted tags for a compact, rugged footprint.
  • Voltage Rating: Rated 690V AC.
  • Compact Profile: Product height of 76 mm.
  • Standard Packaging: Supplied in standard packaging.

Certifications & Compliance

  • CE Marked

Technical Specifications

  • Voltage Type: AC
  • 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
  • Voltage Rating: 690V

Typical Applications

  • Semiconductor Protection Circuits
  • Industrial Power Electronics
  • Motor Drive and Rectifier Protection
  • Panelboard and Switchgear Installations
  • Commercial and Industrial Electrical Systems

Why Bussmann?

Bussmann engineers its high speed square body fuses for the demanding needs of semiconductor protection, backing this 690V, 200 kAIC Class aR fuse with CE Marked compliance. The square body design, center bolted tags, and blade end M6 connections deliver a dependable, code-compliant fit for professional electrical installations. Choose Bussmann for consistent, reliable overcurrent protection across the full 700A-1500A rating range.

Manufacturer Resources

Product Specs

Product Group:
Fuses
Class:
Class aR
Voltage Type:
AC
Utilization Category:
aR (accompanied semiconductor protection)
Packaging Type:
Standard
Connection:
Blade end x blade end
Product Type:
Fuse
Interrupt Rating:
200 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
Department:
Electrical
Voltage Rating:
690V
Connection Type:
Blade End
Amperage Rating:
700A - 1500A
Standards:
CE Marked

Bussmann 170M6615 – Frequently Asked Questions

1) Will a Bussmann 170M-661 square body fuse protect a semiconductor drive, or do I need a branch circuit fuse?
The 170M-661 is a high speed square body fuse built specifically for semiconductor protection, with utilization category aR (accompanied semiconductor protection). aR means it is not a standalone overload device: it clears short circuit faults fast enough to save diodes, SCRs and IGBTs, but overload protection has to come from something else in the circuit, typically the drive's own electronic protection or an upstream breaker. If you need general branch circuit or cable overload protection, this is the wrong class of fuse.
2) Can I use a 170M-661 fuse on a 480V or 600V system?
Yes. The 170M-661 is rated 690V AC, so it can be applied on lower AC system voltages including 480V and 600V. Applying it above 690V AC is not permitted, and the rating is AC only, so do not use it on a DC bus without a DC rating for the specific part.
3) What amp ratings does the Bussmann 170M-661 come in, and what are the part numbers?
Ratings run from 700A to 1500A. The orderable parts are 170M6711 at 700A, 170M6615 at 1100A, 170M6716 at 1250A, 170M6717 at 1400A and 170M6718 at 1500A. Order by the exact part number, since the amp rating is the only difference between them and the body and terminal arrangement stay the same across the range.
4) How does this fuse bolt into the holder - is it a blade or a bolted tag?
Both ends are blade end terminals, blade end by blade end, mounted with M6 bolts through center bolted tags on a square body. That means it lands directly on busbar or on a square body fuse base with M6 hardware rather than clipping into a cylindrical fuse clip. Confirm your base or busbar drilling matches the M6 center bolted tag pattern before ordering.
5) How much vertical space do I need in the enclosure for this fuse?
Product height is 76 mm, which is roughly 3 inches, so plan for that plus clearance for the M6 bolted connections and the cable or busbar landing on each blade. It is a center bolted tag square body, so the height figure is the fuse body itself and does not include the mounting base.
6) Is a 200 kAIC rating enough for my switchgear fault current?
The 170M-661 interrupts 200 kAIC at 690V AC, which covers essentially any available fault current you will see on an industrial low voltage service. Compare it against the available short circuit current calculated at the point of installation on your study; as long as that number is at or below 200 kA and the system voltage is 690V AC or less, the fuse is correctly applied.
7) Does the 170M-661 fuse have insulated gripping lugs for hot handling?
No. This version is supplied without insulated metal gripping lugs (IMGL), so the blade ends are bare for direct bolted connection. If your maintenance procedure calls for pulling fuses with an insulated puller by the lug, you need an IMGL version instead. As with any square body semiconductor fuse, de-energize and verify before removal.
8) Is this Bussmann fuse acceptable for a European or CE marked panel build?
The 170M-661 is CE Marked, so it can be specified into panels built to European conformity requirements. That is the compliance mark carried on this fuse; the 690V AC rating also lines up with common European industrial system voltages.
9) Can I mix amp ratings across the three phases of a rectifier?
No. Use the same part number in all poles. Every rating in the 170M-661 range, 700A through 1500A, shares the same square body and blade end M6 mounting, so it is physically possible to fit a different amp rating in one pole, but the melting characteristics would then differ phase to phase and the protection on the semiconductor stack would be unbalanced. Pick one rating that suits the load and order matched sets.
How fast can I get the Bussmann 170M6615 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 170M6615 come with a warranty?
Absolutely. The Bussmann 170M6615 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 170M6615?
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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