Bussmann Eaton Series FWA High-Speed Fuse, Non-Indicating, 500V

Bussmann FWA-125ASI4 Eaton Series FWA High-Speed Fuse, Non-Indicating

The Bussmann FWA-125ASI4 is an Eaton Bussmann series FWA high-speed fuse engineered for reliable overcurrent protection in demanding electrical circuits. This Standard-type fuse is rated 500 Vac (0.25-6.3A) and 500 Vdc (2-5A), delivering precise, fast-acting current interruption for sensitive power electronics, semiconductor devices, and control circuits that require tight protection margins. Built to a non-indicating design and RoHS compliant construction, the FWA-125ASI4 gives electrical professionals a dependable, code-conscious component for both new installations and replacement service work. Its compact physical footprint also makes it a practical fit inside crowded panel and enclosure layouts.

Key Features

• Voltage & Current Rating: Rated 500 Vac (0.25-6.3A) and 500 Vdc (2-5A) for precise overcurrent protection across both AC and DC circuits.
• High-Speed Fuse Type: Eaton Bussmann series FWA high-speed fuse built for fast-acting circuit interruption ahead of downstream component damage.
• Standard Type: Classified as a Standard-type FWA series fuse for general high-speed protection duty.
• Fuse Indicator: Non-Indicating design suited to standard installation and replacement applications.
• Compact Dimensions: Measures 5.3 in in length/depth and 1.6 in in width, weighing approximately .3 lb for straightforward handling and mounting.
• RoHS Compliant: Manufactured to RoHS compliance standards for restricted-substance requirements.

Certifications & Compliance

• RoHS Compliant

Technical Specifications

• Compliances: RoHS Compliant
• Fuse Indicator: Non Indicating
• Product Height: .001 in
• Product Length Depth: 5.3 in
• Product Weight: .3 lb
• Product Width: 1.6 in
• Voltage Rating: 500 Vac (0.25-6.3 A), 500 Vdc (2-5 A)

Typical Applications

• Power Electronics and Semiconductor Circuit Protection
• Motor Drive and Variable Frequency Drive (VFD) Systems
• Industrial Control Panels and Switchgear
• Rectifier and Converter Circuits
• Commercial and Industrial Electrical Systems

Why Bussmann?

Bussmann by Eaton is a trusted name in circuit protection, and the FWA series high-speed fuse reflects that engineering standard with a Standard-type, non-indicating design built to precise 500 Vac and 500 Vdc ratings. RoHS compliant construction ensures the FWA-125ASI4 meets modern environmental compliance requirements, while its compact, consistent dimensions support reliable, code-compliant performance across the demanding power electronics and industrial control applications professional electricians rely on Bussmann to protect.