Eaton FWX-350A High Speed Fuse - 200 kAIC Vac

FWX-350A delivers a 350 A RMS rating at a 600 V maximum, aligning with common motor drives and distribution feeders. It is sized to minimize nuisance trips and to protect sensitive equipment during startup transients, reducing unplanned downtime. Suitable for industrial control panels, drive cabinets, and power distribution blocks, it helps engineers specify a single protective device for mixed loads. The device's compact footprint also supports dense panel layouts and easy replacement during maintenance. With an interrupt rating of 200 kAIC Vac and 50 kAIC at 250 Vdc, FWX-350A clears faults rapidly without sustaining damaging arcing. That capability is essential in high-energy circuits where fault energy can be quickly dissipated, protecting downstream components and lowering maintenance costs. The DC rating ensures safe operation on DC buses up to 250 V and helps avoid nuisance trips during renewable or DC-link applications. Connectivity options include blade end x blade end terminals and a stud mounting method, delivering flexible installation for either pre-wired harnesses or bolted bus connections. Non Indicating design reduces front-panel clutter and simplifies status reporting in control cabinets. The fusion of blade and stud options also supports retrofits, enabling easier replacement in legacy equipment. RoHS compliant and CE marked, the FWX-350A also carries CSA certification and UL recognition, aligning with global safety and environmental standards. This multi-safety profile supports compliant procurement and reduces qualification work during plant upgrades. Physical size measures 4.3 in length, 1.63 in height, and 1.62 in width, with a weight of 0.46 lb and watt losses of 39 W. Standard packaging keeps stocking simple and ensures predictable shipping and handling in distribution centers. The compact form factor and predictable electrical performance support reliable integration into existing frames and bus bars. As part of the FWX family, FWX-350A integrates with existing protection schemes and spare-part inventories, enabling faster, cost-effective upgrades.