Bussmann 170M8625 High-Speed D...
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Bussmann 170M8625 High-Speed DIN 3 Fuse-Link, 1100A, 1000V AC, aR

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Model: 170M8625

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

$2,121.34
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Bussmann 170M8625 High-Speed DIN 3 Fuse-Link, 1100A, 1000V AC, aR

The Bussmann 170M8625 is a high-speed DIN 3 fuse-link engineered for semiconductor protection in demanding industrial power circuits. Rated 1100 A at AC 1000 V with a 125 kAIC interrupt rating, this Class aR utilization category fuse-link is built for accompanied semiconductor protection per IEC 60269-4 and DIN specifications. The compact 74 x 92 x 138 mm square body features slotted center bolted tags and a single blown-fuse indicator for fast field identification and maintenance.

Key Features

  • Compact Dimensions: 74 x 92 x 138 mm square body for standard DIN 3 fuse mounting systems.
  • Amperage Rating: 1100 A continuous current rating for high-capacity semiconductor circuits.
  • Voltage Rating: Rated AC 1000 V for demanding industrial power applications.
  • Class aR Design: aR (accompanied semiconductor protection) utilization category protects semiconductor devices without unnecessary nuisance operation.
  • Interrupt Rating: 125 kAIC short-circuit interrupt rating for high fault-current environments.
  • Terminal Connection: Square body with slotted center bolted tags for secure, low-resistance terminations.
  • Single Indicator: Built-in single blown-fuse indicator simplifies troubleshooting and maintenance.
  • Standards-Based Design: Manufactured to DIN and IEC 60269-4 fuse-link specifications.

Certifications & Compliance

  • IEC 60269-4 Compliant
  • CE Compliant
  • DIN Standard Fuse-Link

Technical Specifications

  • Application: semiconductor protection
  • Certifications: IEC 60269-4
  • Class: Class aR
  • Compliances: CE
  • Fuse Indicator: Other
  • Fuse Shape: Square body, slotted center bolted tags
  • Insulated Metal Gripping Lugs Imgl: No
  • Interrupt Rating: 125 kAIC
  • Packaging Type: Standard
  • Product Height: 76 mm
  • Product Length Depth: 168 mm
  • Product Weight: 1337 g
  • Product Width: 95 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Type: AC

Typical Applications

  • Semiconductor Protection in Power Electronics
  • Variable Frequency Drives and Motor Control
  • Industrial Rectifier and Converter Circuits
  • High Fault-Current Power Distribution Systems
  • DIN 3 Fuse Mounting and Replacement Applications

Why Bussmann?

Bussmann fuse-links are engineered for reliable, code-compliant protection of critical semiconductor and power electronic circuits. The 170M8625 Class aR design, 125 kAIC interrupt rating, and IEC 60269-4 compliance make it a dependable choice for demanding industrial applications where fast, accurate fault protection is essential.

Manufacturer Resources

Product Specs

Amperage Rating:
1100 A
Application:
semiconductor protection
Certifications:
IEC 60269-4
Class:
Class aR
Compliances:
CE
Fuse Indicator:
Other
Fuse Shape:
Square body, slotted center bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
125 kAIC
Packaging Type:
Standard
Product Height:
76 mm
Product Length Depth:
168 mm
Product Weight:
1337 g
Product Width:
95 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
1000 V
Voltage Type:
AC
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M8625 – Frequently Asked Questions

1) Will the Bussmann 170M8625 protect the semiconductors in my drive, or do I need a different fuse class?
Class aR is what the 170M8625 is, and aR means accompanied semiconductor protection: it clears short circuits fast enough to save diodes, IGBTs and SCRs, but it does not provide overload protection on its own. You still need a separate overload device (drive electronic trip, overload relay, or a breaker) in the circuit. If you want a fuse that handles both overload and short circuit by itself, aR is the wrong category for that job.
2) Can I use a 1000V AC fuse like the Bussmann 170M8625 on a DC bus?
The 170M8625 carries an AC rating only, 1000 V AC at 1100 A. DC ratings for high-speed fuses are always lower than the AC figure and are published separately, so do not apply the 1000 V number to a DC link. For DC bus protection, specify a 170M-series link with a stated DC voltage rating suited to your bus voltage.
3) Is 125 kAIC enough for my switchgear's available fault current?
The 170M8625 interrupts 125,000 A at its 1000 V AC rating, which covers most industrial rectifier, converter and drive feeders fed from large transformers. Compare that against the available short-circuit current calculated at the point of installation on your one-line; if your study shows more than 125 kA at that bus, this link is not rated for it.
4) Can I substitute a standard industrial 1100A fuse for this high-speed semiconductor link?
No. A general purpose industrial fuse of the same amperage will not clear fast enough to keep a rectifier diode or IGBT inside its I2t withstand, so the semiconductor fails before the fuse does. The 170M8625 is a high-speed aR link specified for semiconductor protection, and a replacement needs to match on current, voltage, class and let-through energy, not just on the 1100 A number.
5) Will a DIN 3 fuse-link fit the space I have in my existing panel?
Overall the 170M8625 measures 168 mm deep, 95 mm wide and 76 mm high, and it weighs 1337 g. That mass matters as much as the footprint: on a bolted bus you want the tags supported at both ends rather than cantilevered off a single bar. Check the depth against your enclosure door clearance before you commit, since 168 mm is the dimension that usually causes trouble in a shallow cabinet.
6) How do I tell if a 170M8625 has blown without pulling it out?
There is a single blown-fuse indicator built into the body, so a maintenance tech can identify the opened link visually at the bus instead of de-energizing and testing each one. On a three-phase rectifier stack with several links in parallel or in series, that is the difference between a five minute find and an hour of continuity checks.
7) Does the Bussmann 170M8625 meet IEC and CE requirements for a European-spec machine?
It is built to IEC 60269-4, the standard covering fuse-links for the protection of semiconductor devices, and it is CE compliant. That is the pairing a machine builder shipping into the EU normally needs on the drive input fuses. Note that these are the IEC and CE marks specifically; nothing else is claimed here.
8) Where does a 1100A aR fuse-link like this actually get used?
Typical spots are the AC input or arm fuses on industrial rectifiers and converters, large variable frequency drives and motor control sections, and power distribution with high available fault current. At 1100 A it is a large-frame link, so it is usually feeding a drive or rectifier stack rather than sitting on a branch circuit.
How fast can I get the Bussmann 170M8625 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 170M8625 come with a warranty?
Absolutely. The Bussmann 170M8625 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 170M8625?
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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