Bussmann FWA-45A21F Eaton Seri...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$243.51
$225.56
Bussmann FWA-45A21F Eaton series FWA high speed fuse, 500 Vac, 500 Vdc, 45A, 100 kAIC, Non Indicating, High speed fuse, Ferrule end X ferrule end

Bussmann FWA-45A21F Eaton Series 45A High-Speed Fuse, Ferrule End

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Model: FWA-45A21F
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$243.51
$225.56
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Bussmann FWA-45A21F Eaton Series 45A High-Speed Fuse, Ferrule End

The Bussmann FWA-45A21F is an Eaton Bussmann series FWA high-speed fuse engineered for semiconductor and power electronics protection, rated 500 Vac and 500 Vdc with a 45A amperage rating and 100 kAIC interrupting capacity. Built in a cylindrical body with a ferrule end x ferrule end termination, this non-indicating fuse is classified in utilization category aR (accompanied semiconductor protection) and carries CSA Certified and CE Marked compliance for demanding industrial power applications.

Key Features

  • Amperage Rating: 45A high-speed fuse rating for precise overcurrent protection.
  • Dual Voltage Rating: Rated 500 Vac and 500 Vdc, supporting both AC and DC circuit protection.
  • Interrupting Rating: 100 kAIC breaking capacity for high fault-current environments.
  • Ferrule End Construction: Cylindrical fuse body with ferrule end x ferrule end termination for reliable fuse holder mounting.
  • Non-Indicating Design: Non-indicating format suited for standard fuse blocks and clips.
  • Utilization Category aR: Accompanied semiconductor protection for coordinated device protection schemes.
  • Application-Specific Protection: Designed for DC common bus, DC drives, power converters/rectifiers, and reduced voltage starters.
  • Frequency Rating: Rated for 45 Hz to 62 Hz operation.

Certifications & Compliance

  • CSA Certified
  • CE Marked

Technical Specifications

  • Amperage Rating: 45 A
  • Application: DC common bus, DC drives, power converters/rectifiers and reduced voltage starters
  • Breaking Capacity: 200 A
  • Certifications: CSA Certified
  • Clearing I2t: 1300 at 150 V
  • Compliances: CE Marked
  • Frequency Rating Max: 62 Hz
  • Frequency Rating Min: 45 Hz
  • Fuse Shape: Cylindrical
  • Packaging Type: Standard
  • Pre Arc I2t: 130
  • Product Height: 21 mm
  • Product Length Depth: 51 mm
  • Product Weight: 55.3 g
  • Product Width: 21 mm
  • Release Characteristic: Other
  • Utilization Category: aR (accompanied semiconductor protection)
  • Voltage Rating: 150 V
  • Voltage Type: AC/DC
  • Watt Losses: 6 W

Typical Applications

  • DC Common Bus Protection
  • DC Drive Systems
  • Power Converters and Rectifiers
  • Reduced Voltage Starters
  • Industrial Semiconductor Device Protection

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the FWA series high-speed fuse delivers the rapid clearing performance semiconductor and power electronics circuits require. With CSA Certified and CE Marked compliance, 100 kAIC interrupting capacity, and a cylindrical ferrule end x ferrule end body, this fuse is built for reliable, code-compliant performance in demanding industrial power applications.

Manufacturer Resources

Product Specs

Amperage Rating:
45 A
Breaking Capacity:
200 A
Certifications:
CSA Certified
Clearing I2t:
1300 at 150 V
Compliances:
CE Marked
Connection:
Ferrule end x ferrule end
Frequency Rating Max:
62 Hz
Frequency Rating Min:
45 Hz
Fuse Indicator:
Non Indicating
Fuse Shape:
Cylindrical
Interrupt Rating:
100 kAIC
Packaging Type:
Standard
Pre Arc I2t:
130
Product Height:
21 mm
Product Length Depth:
51 mm
Product Weight:
55.3 g
Product Width:
21 mm
Release Characteristic:
Other
Utilization Category:
aR (accompanied semiconductor protection)
Voltage Rating:
150 V
Voltage Type:
AC/DC
Watt Losses:
6 W
Product Group:
Fuses
Department:
Electrical
Product Subgroup:
Other Fuses
Product Type:
High speed fuse
Product Details:
High speed fuse

Bussmann FWA-45A21F – Frequently Asked Questions

How fast can I get the Bussmann FWA-45A21F delivered?
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Does the Bussmann FWA-45A21F come with a warranty?
Absolutely. The Bussmann FWA-45A21F 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 FWA-45A21F?
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