Bussmann 170M6599 Class aR Hig...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,787.00
Bussmann 170M6599 High Speed Fuse

Bussmann 170M6599 Class aR High-Speed Square Body Fuse, 1100A/700V

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Model: 170M6599
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Bussmann 170M6599 Class aR High-Speed Square Body Fuse, 1100A/700V

The Bussmann 170M6599 is a Class aR high-speed square body fuse engineered for demanding DC power protection applications. Rated 1100A RMS with a voltage rating of 700 Vac (UL) and 690 Vac (IEC), this fuse delivers a 100 kAIC interrupt rating for reliable short-circuit protection in DC common bus systems, DC drives, power converters/rectifiers, and reduced voltage starters. The non-indicating, flush-mount square body design and 140W watt loss rating make it well suited for high-current industrial DC circuits requiring fast-acting semiconductor protection.

Key Features

  • Amperage Rating: 1100A RMS current rating for high-capacity DC circuit protection.
  • Class aR Design: High-speed fuse construction rated for fast-acting semiconductor and DC protection duty.
  • Voltage Rating: 700 Vac (UL) / 690 Vac (IEC) for use across UL and IEC-rated systems.
  • Interrupt Rating: 100 kAIC for dependable short-circuit interrupting capacity.
  • Square Body Construction: Non-indicating, flush-mount square body fuse format.
  • Watt Losses: 140W rated power dissipation.
  • DC Application Range: Suited for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starters.

Certifications & Compliance

  • UL Recognized
  • IEC Rated
  • RoHS Compliant
  • CE Marked

Technical Specifications

  • Amperage Rating: 1100A
  • Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
  • Class: Class aR
  • Clearing I2t: Clearing at 1000V: 2800000 , Clearing at 1250V: 3600000
  • Current Rating: 1100A RMS
  • Fuse Indicator: Non Indicating
  • Interrupt Rating: 100 kAIC
  • Packaging Type: Standard
  • Pre Arc I2t: 575000
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
  • Watt Losses: 140W
  • Product Type: Square body, -BKN/90 type K indicator for micro
  • Product Length: 5.433 IN
  • Product Details: Square body, -BKN/90 type K indicator for micro
  • Mounting Method: Flush
  • Product Height: 2.087 IN
  • Product Weight: 1.6456 LB
  • Product Width: .315 IN

Typical Applications

  • DC Common Bus Protection
  • DC Drive Systems
  • Power Converters and Rectifiers
  • Reduced Voltage Starters
  • Industrial High-Current DC Circuits

Why Bussmann?

Bussmann engineers the 170M6599 square body fuse to deliver dependable Class aR high-speed protection backed by UL Recognition and IEC rating for use across global electrical systems. With a 100 kAIC interrupt rating and RoHS/CE compliance, this fuse supports code-compliant, reliable performance in demanding industrial DC power protection applications.

Manufacturer Resources

Product Specs

Amperage Rating:
1100A
Class:
Class aR
Clearing I2t:
Clearing at 1000V: 2800000 , Clearing at 1250V: 3600000
Current Rating:
1100A RMS
Fuse Indicator:
Non Indicating
Interrupt Rating:
100 kAIC
Packaging Type:
Standard
Pre Arc I2t:
575000
Voltage Rating:
700 Vac (UL), 690 Vac (IEC)
Watt Losses:
140W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Square Body Fuses
Product Type:
Square body, -BKN/90 type K indicator for micro
Product Length:
5.433 IN
Product Details:
Square body, -BKN/90 type K indicator for micro
Mounting Method:
Flush
Product Height:
2.087 IN
Product Weight:
1.6456 LB
Product Width:
.315 IN

Bussmann 170M6599 – Frequently Asked Questions

1) Can the Bussmann 170M6599 fuse be used on a 690V IEC drive and a 600V UL panel?
Yes on both counts. The 170M6599 carries a dual rating of 700 Vac under UL and 690 Vac under IEC, so it covers 690V IEC drive systems and any UL circuit at or below 700 Vac. Applying it above those numbers is out of spec.
2) What is a Class aR high-speed fuse for, and is it the right choice for protecting drive semiconductors?
Class aR is partial-range semiconductor protection: it clears short circuits fast enough to save diodes, SCRs and IGBTs, but it is not designed to handle low-level overloads. The 170M6599 is a 1100A aR square body fuse used on DC common bus, DC drives, power converters and rectifiers, and reduced voltage starters. If you need overload protection as well, that has to come from the drive's own electronic protection or an upstream overload device, not from this fuse.
3) What I2t values do I use to coordinate the 170M6599 with my rectifier diodes?
Pre-arcing (melting) I2t is 575,000 A2s. Total clearing I2t is 2,800,000 A2s at 1000V and 3,600,000 A2s at 1250V. Compare the clearing value at the voltage closest to your circuit against the semiconductor's published I2t withstand; the device rating must exceed the fuse's clearing I2t for the fuse to protect it.
4) Will I be able to tell at a glance if this Bussmann 1100A square body fuse has blown?
No. The 170M6599 is a non-indicating fuse, so there is no mechanical pin or flag to look at and no micro-switch pickup on the fuse body itself. Plan on continuity testing or a separate blown-fuse monitoring relay if you need fault annunciation in the panel.
5) How much heat does the Bussmann 170M6599 put into the enclosure?
Rated watt loss is 140W at full load. On a multi-fuse DC drive section that adds up fast, so include it in the enclosure heat calculation along with the drive and any other 170M series fuses in the same cabinet before sizing ventilation or a cooling unit.
6) Is the Bussmann 170M6599 RoHS compliant and CE marked for an export panel build?
Yes. The 170M6599 is UL Recognized, IEC rated, RoHS compliant and CE marked, which is what a panel shop building to both North American and European requirements needs on the bill of material.
How fast can I get the Bussmann 170M6599 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 170M6599 come with a warranty?
Absolutely. The Bussmann 170M6599 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 170M6599?
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 170M6599 from ZenSupply?
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