Bussmann 170M3321 Class aR Squ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$895.59
Bussmann 170M3321 High Speed Fuse

Bussmann 170M3321 Class aR Square Body High Speed Fuse, 500A

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Model: 170M3321
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$895.59
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Bussmann 170M3321 Class aR Square Body High Speed Fuse, 500A

The Bussmann 170M3321 Class aR Square Body High Speed Fuse delivers dependable overcurrent protection for demanding power electronics applications, rated 500A RMS with a voltage rating of 700 Vac (UL) and 690 Vac (IEC). Built for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starters, this high speed fuse carries a 200 kAIC interrupt rating and is UL Recognized and IEC Rated for use in demanding industrial circuits.

Key Features

  • Amperage Rating: 500A RMS current rating delivers high-capacity protection for heavy industrial loads.
  • Class aR High Speed Design: Engineered for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starters where fast semiconductor protection is critical.
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC) supports both UL and IEC installation standards.
  • Interrupt Rating: 200 kAIC interrupt rating provides reliable performance under high fault-current conditions.
  • I²t Ratings: Pre-arc I²t of 27000 and clearing I²t of 180000 at 660V for precise fuse coordination with upstream and downstream devices.
  • Watt Losses: 70W power dissipation rating supports accurate thermal and enclosure design.
  • Fuse Indicator: Non-Indicating design in a square body, French-style construction.
  • Packaging: Standard packaging type.

Certifications & Compliance

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

Technical Specifications

  • Amperage Rating: 500A
  • Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
  • Class: Class aR
  • Clearing I²t: Clearing at 660V: 180000
  • Current Rating: 500A RMS
  • Fuse Indicator: Non Indicating
  • Interrupt Rating: 200 kAIC
  • Packaging Type: Standard
  • Pre Arc I²t: 27000
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
  • Watt Losses: 70W
  • Product Type: Square body, French style -E/ type T indicator for micro
  • Product Length: 5.433 IN
  • Product Details: Square body, French style -E/ type T indicator for micro
  • Product Height: 2.087 IN
  • Product Weight: 1.6456 LB
  • Product Width: .315 IN

Typical Applications

  • DC Common Bus Protection
  • DC Drives
  • Power Converters and Rectifiers
  • Reduced Voltage Starters
  • Industrial Motor Drive Circuits
  • Semiconductor and Power Electronics Protection

Why Bussmann?

Bussmann fuses are engineered for dependable, code-compliant performance in demanding industrial power applications. The 170M3321 Class aR High Speed Fuse combines a 500A RMS rating, 200 kAIC interrupt rating, and dual UL/IEC voltage compliance with UL Recognized and IEC Rated construction, making it a trusted choice for protecting DC drives, power converters, and reduced voltage starters in critical electrical systems.

Manufacturer Resources

Product Specs

Amperage Rating:
500A
Class:
Class aR
Clearing I2t:
Clearing at 660V: 180000
Current Rating:
500A RMS
Fuse Indicator:
Non Indicating
Interrupt Rating:
200 kAIC
Packaging Type:
Standard
Pre Arc I2t:
27000
Voltage Rating:
700 Vac (UL), 690 Vac (IEC)
Watt Losses:
70W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Square Body Fuses
Product Length:
5.433 IN
Product Height:
2.087 IN
Product Weight:
1.6456 LB
Product Width:
.315 IN
Product Type:
Fuse

Bussmann 170M3321 – Frequently Asked Questions

How fast can I get the Bussmann 170M3321 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 170M3321 come with a warranty?
Absolutely. The Bussmann 170M3321 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 170M3321?
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 170M3321 from ZenSupply?
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