Bussmann 170M3770 Class aR Hig...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,014.21
Bussmann 170M3770 High Speed Fuse

Bussmann 170M3770 Class aR High-Speed Fuse, 450A

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Model: 170M3770
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$1,014.21
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Bussmann 170M3770 Class aR High-Speed Fuse, 450A

The Bussmann 170M3770 is a Class aR high-speed fuse rated 450A RMS, engineered for fast-acting overcurrent protection in DC common bus, DC drives, and power converter/rectifier applications. It carries a voltage rating of 700 Vac (UL) and 690 Vac (IEC), with a 200 kAIC interrupt rating for demanding industrial power systems. The fuse features blade end x blade end connections and is UL Recognized, IEC Rated, CE Marked, and RoHS Compliant.

Key Features

  • Amperage Rating: 450A RMS current rating delivers reliable overcurrent protection for demanding DC power systems.
  • Class aR Design: High-speed Class aR construction provides fast-acting response for semiconductor and power conversion protection.
  • Connection: Blade end x blade end terminals for secure, compatible mounting.
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC) supports both UL and IEC-compliant installations.
  • Interrupt Rating: 200 kAIC high interrupt capacity suits demanding industrial fault-current environments.
  • Fuse Indicator: Non-Indicating body design.
  • Watt Losses: 65W rated power loss.
  • I²t Ratings: Pre-Arc I²t of 21000 and Clearing I²t at 660V of 140000 support precise system coordination.

Certifications & Compliance

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

Technical Specifications

  • Amperage Rating: 450A
  • Current Rating: 450A RMS
  • Application: DC common bus, DC drives, power converters/rectifiers
  • Class: Class aR
  • Connection: Blade end X blade end
  • Voltage Rating: 700 Vac (UL), 690 Vac (IEC)
  • Interrupt Rating: 200 kAIC
  • Fuse Indicator: Non Indicating
  • Pre Arc I²t: 21000
  • Clearing I²t: Clearing at 660V: 140000
  • Watt Losses: 65W
  • Packaging Type: Standard
  • Product Type: Square body, US style -FKE/115 type K indicator for micro
  • Product Details: Square body, US style -FKE/115 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 Drives
  • Power Converters and Rectifiers
  • Industrial DC Power Distribution

Why Bussmann?

Bussmann engineers the 170M3770 as a Class aR high-speed fuse with a 200 kAIC interrupt rating and dual UL/IEC voltage ratings, giving electrical professionals a dependable option for protecting DC drives, converters, and rectifiers. Backed by UL Recognition, IEC Rating, CE Marking, and RoHS Compliance, it delivers code-compliant performance for demanding industrial power systems.

Manufacturer Resources

Product Specs

Amperage Rating:
450A
Application:
DC common bus, DC drives, power converters/rectifiers
Class:
Class aR
Clearing I2t:
Clearing at 660V: 140000
Connection:
Blade end X blade end
Current Rating:
450A RMS
Fuse Indicator:
Non Indicating
Interrupt Rating:
200 kAIC
Packaging Type:
Standard
Pre Arc I2t:
21000
Voltage Rating:
700 Vac (UL), 690 Vac (IEC)
Watt Losses:
65W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
Fuse
Product Length:
5.433 IN
Product Height:
2.087 IN
Product Weight:
1.6456 LB
Product Width:
.315 IN

Bussmann 170M3770 – Frequently Asked Questions

How fast can I get the Bussmann 170M3770 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 170M3770 come with a warranty?
Absolutely. The Bussmann 170M3770 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 170M3770?
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 170M3770 from ZenSupply?
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