Bussmann 170M3446 High Speed F...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,380.14
Bussmann 170M3446 High Speed Fuse

Bussmann 170M3446 High Speed Fuse, Class aR, 315A

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Model: 170M3446
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$1,380.14
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Bussmann 170M3446 High Speed Fuse, Class aR, 315A

The Bussmann 170M3446 is a Class aR high-speed fuse built in a square body design rated 315A RMS at 700Vac (UL) / 690Vac (IEC), engineered to protect semiconductors and power electronics where fast clearing is critical. With a 100kAIC interrupt rating and Non Indicating operation, this fuse is intended for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starter applications. The unit carries RoHS Compliant and CE Marked status along with UL Recognized and IEC Rated listings for use in professional electrical and industrial control systems.

Key Features

  • Compact Square Body: Measures 5.433 IN long, 2.087 IN high, and .315 IN wide, with a flush mounting method for space-conscious panel and drive layouts.
  • Amperage Rating: 315A RMS current rating for reliable protection of high-power DC and rectifier circuits.
  • Voltage Rating: Rated 700Vac (UL) and 690Vac (IEC) for use across UL and IEC-compliant electrical systems.
  • Class aR Design: Purpose-built semiconductor protection class for rectifier and DC drive circuits demanding high-speed clearing.
  • Interrupt Rating: 100 kAIC interrupt rating supports safe fault clearing in high fault-current environments.
  • Fuse Indicator: Non Indicating construction, -BKN/80 type K indicator for micro switch compatibility per product design.
  • Watt Losses: Rated at 60W, an important design factor for panel heat load calculations.

Certifications & Compliance

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

Technical Specifications

  • Amperage Rating: 315A
  • Application: DC common bus, DC drives, power converters/rectifiers, reduced voltage starters
  • Class: Class aR
  • Clearing I2t: Clearing at 1000V: 115000, Clearing at 1250V: 150000
  • Current Rating: 315A RMS
  • Fuse Indicator: Non Indicating
  • Interrupt Rating: 100 kAIC
  • Packaging Type: Standard
  • Pre Arc I2t: 18500
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
  • Watt Losses: 60W
  • Product Type: Square body, -BKN/80 type K indicator for micro
  • Product Length: 5.433 IN
  • Product Details: Square body, -BKN/80 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 Motor Drive Circuits
  • Semiconductor and Power Electronics Protection

Why Bussmann?

Bussmann engineers the 170M3446 as a Class aR high-speed fuse with a rugged square body construction, a 100 kAIC interrupt rating, and RoHS, CE, UL, and IEC compliance for dependable semiconductor protection. For professionals specifying DC drive and rectifier circuit protection, this fuse delivers the fast-clearing performance and code-compliant reliability that demanding industrial applications require.

Manufacturer Resources

Product Specs

Amperage Rating:
315A
Class:
Class aR
Clearing I2t:
Clearing at 1000V: 115000 , Clearing at 1250V: 150000
Current Rating:
315A RMS
Fuse Indicator:
Non Indicating
Interrupt Rating:
100 kAIC
Packaging Type:
Standard
Pre Arc I2t:
18500
Voltage Rating:
700 Vac (UL), 690 Vac (IEC)
Watt Losses:
60W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Length:
5.433 IN
Product Details:
Square body, -BKN/80 type K indicator for micro
Mounting Method:
Flush
Product Height:
2.087 IN
Product Weight:
1.6456 LB
Product Width:
.315 IN

Bussmann 170M3446 – Frequently Asked Questions

How fast can I get the Bussmann 170M3446 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 170M3446 come with a warranty?
Absolutely. The Bussmann 170M3446 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 170M3446?
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 170M3446 from ZenSupply?
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