Bussmann 170M3673 High Speed F...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$935.69
Bussmann 170M3673 High Speed Fuse

Bussmann 170M3673 High Speed Fuse, 630A Class aR

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Model: 170M3673
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$935.69
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Bussmann 170M3673 High Speed Fuse, 630A Class aR

The Bussmann 170M3673 is a Class aR high speed fuse rated 630A RMS, engineered to protect semiconductors and power electronics in demanding DC applications. Built with blade end X blade end connections for secure bus bar mounting, this fuse carries a voltage rating of 700 Vac (UL) / 690 Vac (IEC) and a 200 kAIC interrupt rating, making it suitable for DC common bus systems, DC drives, and power converters/rectifiers. Its non-indicating square body design delivers precise, coordinated overcurrent protection where fast clearing is critical.

Key Features

  • Amperage Rating: 630A RMS current rating for high-capacity circuit protection in power electronics.
  • Class aR Design: High speed fuse construction built for fast, precise clearing in semiconductor and drive protection applications.
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC) for demanding power conversion and rectifier circuits.
  • Interrupt Rating: 200 kAIC for reliable protection against high fault currents.
  • Connection: Blade end X blade end terminals for secure, low-resistance bus bar mounting.
  • Fuse Indicator: Non-indicating design.
  • Let-Through Energy: Pre-arc I2t of 48,500 and clearing I2t at 660V of 325,000 for precise coordination with upstream and downstream devices.
  • Watt Losses: 80W.
  • Application: Designed for DC common bus, DC drives, and power converter/rectifier circuits.

Certifications & Compliance

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

Technical Specifications

  • Amperage Rating: 630A
  • Application: DC common bus, DC drives, power converters/rectifiers
  • Class: Class aR
  • Clearing I2t: Clearing at 660V: 325000
  • Connection: Blade end X blade end
  • Current Rating: 630A RMS
  • Fuse Indicator: Non Indicating
  • Interrupt Rating: 200 kAIC
  • Packaging Type: Standard
  • Pre Arc I2t: 48500
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
  • Watt Losses: 80W
  • Product Type: Square body, US style -FKE/- type K indicator for micro
  • Product Length: 5.433 IN
  • Product Details: Square body, US style -FKE/- type K indicator for micro
  • Product Height: 2.087 IN
  • Product Weight: 1.6456 LB
  • Product Width: .315 IN

Typical Applications

  • DC Common Bus Systems
  • DC Drive Overcurrent Protection
  • Power Converter and Rectifier Circuits
  • Industrial Power Electronics
  • Semiconductor Protection in High-Speed Switching Equipment

Why Bussmann?

Bussmann engineers the 170M3673 as a Class aR high speed fuse with a 200 kAIC interrupt rating, UL Recognized and IEC Rated performance, and RoHS/CE compliance for global electrical standards. With precisely specified pre-arc and clearing I2t values, this fuse supports accurate protection coordination for DC drives, common bus systems, and power converters in professional electrical installations.

Manufacturer Resources

Product Specs

Amperage Rating:
630A
Application:
DC common bus, DC drives, power converters/rectifiers
Class:
Class aR
Clearing I2t:
Clearing at 660V: 325000
Connection:
Blade end X blade end
Current Rating:
630A RMS
Fuse Indicator:
Non Indicating
Interrupt Rating:
200 kAIC
Packaging Type:
Standard
Pre Arc I2t:
48500
Voltage Rating:
700 Vac (UL), 690 Vac (IEC)
Watt Losses:
80W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Length:
5.433 IN
Product Details:
Square body, US style -FKE/- type K indicator for micro
Product Height:
2.087 IN
Product Weight:
1.6456 LB
Product Width:
.315 IN

Bussmann 170M3673 – Frequently Asked Questions

How fast can I get the Bussmann 170M3673 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 170M3673 come with a warranty?
Absolutely. The Bussmann 170M3673 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 170M3673?
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 170M3673 from ZenSupply?
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