Bussmann 170M6714 Eaton Series...
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Bussmann 170M6714 Eaton Series High-Speed Square Body Fuse, 1000A, Class aR

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Model: 170M6714

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

$1,802.86
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Bussmann 170M6714 Eaton Series High-Speed Square Body Fuse, 1000A, Class aR

The Bussmann 170M6714 is an Eaton series high-speed square body fuse built for demanding semiconductor protection applications. Rated 1000A at 690V AC with a 200 kAIC interrupt rating, this Class aR (accompanied semiconductor protection) fuse uses a blade end x blade end square body configuration with center bolted tags for reliable, low-impedance connections in power electronics and drive circuits. Backed by UL Recognized and CE Marked compliance, it delivers the fast-clearing performance semiconductor devices require to stay protected under fault conditions.

Key Features

  • Amperage Rating: 1000A rating suited for high-current semiconductor protection circuits.
  • Voltage & Interrupt Rating: 690V AC rating with a 200 kAIC interrupt rating for demanding fault-current environments.
  • Fuse Shape: Square body construction with center bolted tags in a blade end x blade end configuration for secure, low-resistance mounting.
  • Utilization Category: Class aR (accompanied semiconductor protection) design for coordinated protection of semiconductor devices.
  • Clearing I2t: 945,000 (A²s) at 660V, with a Pre-Arc I2t of 140,000 (A²s), for precise let-through energy coordination.
  • Watt Losses: 122W rated watt loss.
  • Compact Dimensions: 168 mm length/depth x 95 mm width x 76 mm height, weighing 977 g.

Certifications & Compliance

  • UL Recognized
  • CE Marked

Technical Specifications

  • Amperage Rating: 1000 A
  • Application: semiconductor protection
  • Certifications: UL Recognized
  • Clearing I2t: 945000 at 660 V
  • Compliances: CE Marked
  • Fuse Shape: Square body, center bolted tags
  • Insulated Metal Gripping Lugs (IMGL): No
  • Packaging Type: Standard
  • Pre Arc I2t: 140000
  • Product Height: 76 mm
  • Product Length Depth: 168 mm
  • Product Weight: 977 g
  • Product Width: 95 mm
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 690 V
  • Voltage Type: AC
  • Watt Losses: 122 W

Typical Applications

  • Semiconductor Protection Circuits
  • Power Electronics and Variable Frequency Drive Systems
  • Industrial Motor Control Panels
  • High Fault-Current Electrical Distribution Systems
  • Panelboard and Switchgear Protection

Why Bussmann?

Bussmann by Eaton engineers the 170M6714 as a high-speed, square body Class aR fuse purpose-built for accompanied semiconductor protection, combining a 200 kAIC interrupt rating with tightly controlled Pre-Arc and Clearing I2t values for precise coordination. UL Recognized and CE Marked, it gives electrical professionals a dependable, code-compliant option for protecting sensitive power electronics in industrial and commercial installations.

Manufacturer Resources

Product Specs

Amperage Rating:
1000 A
Application:
semiconductor protection
Certifications:
UL Recognized
Class:
Class aR
Clearing I2t:
945000 at 660 V
Compliances:
CE Marked
Connection:
Blade end x blade end
Fuse Shape:
Square body, center bolted tags
Insulated Metal Gripping Lugs Imgl:
No
Interrupt Rating:
200 kAIC
Packaging Type:
Standard
Pre Arc I2t:
140000
Product Height:
76 mm
Product Length Depth:
168 mm
Product Weight:
977 g
Product Width:
95 mm
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
690 V
Voltage Type:
AC
Watt Losses:
122 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Details:
Fuse

Bussmann 170M6714 – Frequently Asked Questions

1) Can a Bussmann 170M6714 be used for branch circuit or cable protection instead of a standard Class J or RK fuse?
No. The 170M6714 is a Class aR fuse, aR meaning accompanied semiconductor protection. It only clears short circuits and must work alongside another overcurrent device for overload protection. For overload and cable protection you need a full-range fuse or breaker upstream. Use the 170M6714 where you are protecting diodes, SCRs, IGBT rectifier sections and drive bridges.
2) Will the Bussmann 170M6714 fit a 690V system with high available fault current?
Yes. It is rated 690V AC with a 200 kAIC interrupt rating, so it covers industrial drive and switchgear installations where prospective fault current is very high. Apply it at or below 690V AC only; it carries an AC rating, not a DC one.
3) How does the 170M6714 mount, and do I need clips or a fuse block?
It is a square body fuse with center bolted tags in a blade end x blade end configuration, so it bolts down at both ends rather than dropping into spring clips. You need a bolt-down fuse base or busbar landing pads drilled to the body pattern. Body size is 168 mm length/depth x 95 mm width x 76 mm height, and it weighs 977 g, so plan for bracing and terminal support in the enclosure.
4) What I2t values do I use to coordinate the 170M6714 with my SCR or diode?
Compare the semiconductor's I2t withstand against the fuse's clearing I2t of 945,000 A2s at 660 V, with a pre-arc I2t of 140,000 A2s. The device rating has to exceed the clearing value for the fuse to protect it. Those figures are the whole reason for picking a high-speed aR fuse over a general purpose one.
5) What is the correct replacement part number for a blown 1000A square body high-speed fuse in a VFD rectifier?
If the existing fuse is a Bussmann 170M6714, order the same number, sold under MPN 170M6714. Do not substitute by amperage alone. On 170M series fuses the body length, tag centers and I2t let-through vary between part numbers, so a different 1000 A member of the family may not bolt to the same centers or coordinate with the same semiconductor.
6) How much heat does a 1000A Bussmann 170M6714 put into the enclosure?
Rated watt loss is 122 W per fuse at its 1000 A rating. Multiply by the number of poles when you size panel ventilation or cooling, and derate for ambient and for still air inside a sealed cabinet.
7) Does the Bussmann 170M6714 have insulated metal gripping lugs for safer handling?
No, the 170M6714 is supplied without IMGL. The tags are bare bolted terminals, so it must be changed out de-energized and with the terminals confirmed dead. If your maintenance procedure calls for insulated gripping lugs, specify a version of the 170M family that includes them.
8) Is the Bussmann 170M6714 UL Listed or UL Recognized, and is it CE marked?
It is UL Recognized, not UL Listed, and it is CE Marked. UL Recognized means it is approved as a component within a larger listed assembly, which is how these square body semiconductor fuses are normally used in a drive or panel build. For specs that require a fully UL Listed branch device, a Recognized component fuse will not satisfy the inspector on its own.
How fast can I get the Bussmann 170M6714 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 170M6714 come with a warranty?
Absolutely. The Bussmann 170M6714 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 170M6714?
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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