Bussmann 170M5514 Class aR Hig...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,398.51

Bussmann 170M5514 Class aR High Speed Fuse, 800A RMS

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Model: 170M5514
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,398.51
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Bussmann 170M5514 Class aR High Speed Fuse, 800A RMS

The Bussmann 170M5514 is a Class aR high speed fuse rated 800A RMS, engineered to protect semiconductor devices in demanding DC power applications. Built for use in DC common bus, DC drives, and power converter/rectifier circuits, this square body fuse carries a voltage rating of 700 Vac (UL) / 690 Vac (IEC) and a 200 kAIC interrupt rating for dependable short-circuit protection. It is UL Recognized and IEC Rated, with RoHS compliance and CE marking, making it suitable for industrial electrical systems that demand precise semiconductor coordination.

Key Features

  • Amperage Rating: 800A RMS delivers high-capacity current protection for demanding DC power circuits.
  • Class aR Design: purpose-built for semiconductor protection in DC common bus, DC drives, and power converter/rectifier applications.
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC) supports use across both UL- and IEC-rated systems.
  • Interrupt Rating: 200 kAIC ensures reliable clearing of high fault currents.
  • Fuse Indicator: Non-Indicating, square body construction with a flush mounting method.
  • Watt Losses: 105W rated power loss for predictable thermal performance.
  • Let-Through Energy: Pre-Arc I²t of 86,000 and Clearing I²t at 660V of 575,000 for precise coordination with upstream and downstream devices.

Certifications & Compliance

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

Technical Specifications

  • Amperage Rating: 800A
  • Application: DC common bus, DC drives, power converters/rectifiers
  • Class: Class aR
  • Current Rating: 800A RMS
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
  • Interrupt Rating: 200 kAIC
  • Fuse Indicator: Non Indicating
  • Mounting Method: Flush
  • Pre Arc I²t: 86000
  • Clearing I²t: Clearing at 660V: 575000
  • Watt Losses: 105W
  • Packaging Type: Standard
  • Product Type: Square body -BKN/- type K indicator for micro
  • Product Length: 5.433 IN
  • Product Height: 2.087 IN
  • Product Width: .315 IN
  • Product Weight: 1.6456 LB

Typical Applications

  • DC Common Bus Systems
  • DC Drive Protection
  • Power Converters and Rectifiers
  • Industrial Semiconductor Protection
  • Commercial and Industrial Electrical Installations

Why Bussmann?

Bussmann's 170M5514 Class aR fuse combines a 200 kAIC interrupt rating with documented Pre-Arc and Clearing I²t values, giving engineers the data needed to coordinate semiconductor protection with confidence. Backed by UL Recognition and IEC Rating, plus RoHS compliance and CE marking, it is built to meet the code-compliant performance professional electrical systems require in demanding DC power environments.

Manufacturer Resources

Product Specs

Amperage Rating:
800A
Application:
DC common bus, DC drives, power converters/rectifiers
Class:
Class aR
Clearing I2t:
Clearing at 660V: 575000
Current Rating:
800A RMS
Fuse Indicator:
Non Indicating
Interrupt Rating:
200 kAIC
Packaging Type:
Standard
Pre Arc I2t:
86000
Voltage Rating:
700 Vac (UL), 690 Vac (IEC)
Watt Losses:
105W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Length:
5.433 IN
Product Details:
Square body -BKN/- type K indicator for micro
Mounting Method:
Flush
Product Height:
2.087 IN
Product Weight:
1.6456 LB
Product Width:
.315 IN

Bussmann 170M5514 – Frequently Asked Questions

How fast can I get the Bussmann 170M5514 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 170M5514 come with a warranty?
Absolutely. The Bussmann 170M5514 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 170M5514?
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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