Bussmann 170M5540 High-Speed F...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,896.44
Bussmann 170M5540 Fuse Link, High speed, 170M series, 800A, 1000 Vac, 200 kA, Square body, Qty. 2, Includes blade fuse

Bussmann 170M5540 High-Speed Fuse Link, 170M Series, 800A, 1000 Vac, 200 kA Square Body

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Model: 170M5540
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,896.44
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Bussmann 170M5540 High-Speed Fuse Link, 170M Series, 800A, 1000 Vac, 200 kA Square Body

The Bussmann 170M5540 is a high-speed fuse link from the 170M series, engineered for demanding overcurrent protection applications where fast clearing and high interrupting capacity are essential. Rated 800A at 1000 Vac with a 200 kA interrupting rating, this square body fuse link is IEC Rated and ships in a Qty. 2 pack that includes a blade fuse. Its high-speed design makes it well suited for protecting sensitive power electronics and high fault-current circuits in industrial and commercial electrical systems.

Key Features

  • 170M Series: High-speed fuse link construction designed for rapid current-limiting response in demanding circuits.
  • Amperage Rating: 800A rating supports high-capacity power distribution and equipment protection.
  • Voltage Rating: Rated 1000 Vac for use in higher-voltage industrial and commercial systems.
  • Interrupting Rating: 200 kA interrupting capacity delivers robust protection against high fault currents.
  • Square Body Design: Square body configuration for compatibility with corresponding fuse mounting hardware.
  • Includes Blade Fuse: Each package includes a blade fuse and is supplied in a Qty. 2 configuration.
  • High-Speed Operation: Fast-acting characteristics help protect power electronics and semiconductor-based equipment from damaging fault currents.

Certifications & Compliance

  • IEC Rated
  • Additional compliance information available from the manufacturer

Technical Specifications

  • Amperage Rating: 800 A
  • Certifications: IEC Rated
  • Compliances: Contact Manufacturer
  • Packaging Type: Standard
  • Item Quantity: 2

Typical Applications

  • Industrial and Commercial Electrical Systems
  • Panelboard and Switchgear Protection
  • High Fault-Current Circuit Protection
  • Motor and Drive Circuit Protection
  • Power Electronics and Equipment Safeguarding

Why Bussmann?

Bussmann engineers the 170M series of high-speed fuse links to deliver dependable, high-capacity overcurrent protection for demanding electrical environments. With an 800A, 1000 Vac rating, a 200 kA interrupting capacity, and IEC Rated compliance, the 170M5540 is built to safeguard critical equipment and circuits where fast, reliable fault clearing matters. Choose Bussmann for code-conscious professionals who need proven performance in high fault-current applications.

Manufacturer Resources

Product Specs

Amperage Rating:
800 A
Certifications:
IEC Rated
Compliances:
Contact Manufacturer
Packaging Type:
Standard
Product Height:
.001 in
Product Length Depth:
.001 in
Product Weight:
.001 lb
Product Width:
.001 in
Voltage Rating:
1000 V
Department:
Electrical
Item Quantity:
2
Product Type:
Fuse
Product Group:
Fuses
Product Subgroup:
Other Fuses

Bussmann 170M5540 – Frequently Asked Questions

1) What is the Bussmann 170M5540 fuse rated for, and what kind of circuit is it meant to protect?
The 170M5540 is a high-speed square body fuse link rated 800 A at 1000 Vac with a 200 kA interrupting rating. High-speed (semiconductor) fuses like this clear far faster than a standard branch-circuit fuse, which is what power electronics need: drives, rectifiers, converters, and other SCR or IGBT based equipment where the silicon fails before a conventional fuse would open. If you are protecting a general lighting or receptacle branch circuit, this is the wrong class of fuse.
2) Is the 170M5540 a bolt-in or a clip-style fuse?
It is a square body design, which is a bolted or blade-mounted format rather than a ferrule fuse that pushes into spring clips. Mount it to the matching fuse base, bus bar, or holder for square body 170M links. If your existing gear has clip-style holders, this fuse will not drop in.
3) Can I substitute a standard 800A Class J or Class L fuse for the 170M5540?
No. An 800 A Class J or L fuse protects conductors and general equipment, but it is far too slow to save semiconductors. The 170M5540 is a high-speed link built for fast clearing in power electronics, so swapping in a conventional fuse of the same amperage leaves the silicon unprotected, and the square body mounting will not match the other fuse's body style either.
4) How many fuses come in a Bussmann 170M5540 order?
It ships as a quantity of 2 in standard packaging, and the package includes a blade fuse. That matters if you are ordering per-phase: a three-phase drive needs three, so one pack does not finish the job on its own.
5) Will the 170M5540 hold up on a system with very high available fault current?
Its 200 kA interrupting rating covers available fault currents up to that level, which is above what most industrial services present at the equipment. As a current-limiting high-speed link, it also cuts off the let-through energy before the fault reaches peak, which is what keeps a drive stack or rectifier bridge from being destroyed.
6) What is the exact part number I should order for an 800A 170M series high-speed fuse?
The manufacturer part number is 170M5540, Bussmann 170M series. Within the 170M family the part number encodes body size and rating, so ordering an adjacent number gets you a different amperage or a different physical size. Quote 170M5540 exactly.
7) What approvals does the Bussmann 170M5540 carry?
It is IEC Rated. That is the compliance published for this fuse link; for any further agency listings required by your specification, the information comes from the manufacturer.
How fast can I get the Bussmann 170M5540 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 170M5540 come with a warranty?
Absolutely. The Bussmann 170M5540 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 170M5540?
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 170M5540 from ZenSupply?
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