Eaton FWP-40 High Speed Fuse - 1400 Vac, Non Indicating
Part Number: FWP-40
Quick Summary
The Eaton FWP-40 high speed fuse protects sensitive power electronics and motor drives in industrial control panels. Engineers often confront nuisance trips and costly downtime when using slower fuses in high-speed circuits; this device is designed to respond quickly and limit damage. Common industry certifications for Bussmann series devices include CE marking, UL recognition, and IEC/EN compliance; verify current approvals with Eaton for your specific region. This compact, non-indicating fuse offers broad voltage handling—1400 Vac and 2100 Vac in the FWS variants, plus 1000 Vdc in the FW L/FWS versions—supporting safer, more economical protection in modern drives.
Product Information
Extended Description
FWP-40 Eaton: Eaton Bussmann series FWP high speed fuse, 1400 Vac (FWS 8-15A), 2100 Vac (FWS 2-6A), 1000 Vdc (FWL/FWS 2-30A), Standard, Non Indicating
Product Name
Eaton Bussmann series FWP high speed fuse
Catalog Number
FWP-40
UPC
051712508667
Product Length/Depth
0.75 in
Product Height
4.35 in
Product Width
0.75 in
Product Weight
0.18 lb
Warranty
Not Applicable
Compliances
Contact factory Contact Manufacturer
Voltage rating
1400 Vac (FWS 8-15 A), 2100 Vac (FWS 2-6 A), 1000 Vdc (FWL/FWS 2-30 A)
Packaging type
Standard
Fuse indicator
Non Indicating
Ultra-fast trip response minimizes fault energy and protects critical assets. By responding swiftly to overcurrent conditions, the FWP-40 limits damage to motor drives, power electronics, and downstream components, shortening downtime and repair costs. It is ideal for protection in automation cabinets and industrial drives where rapid fault isolation matters. Wide voltage ratings give design flexibility across AC and DC systems. 1400 Vac (FWS 8-15 A), 2100 Vac (FWS 2-6 A), and 1000 Vdc (FWL/FWS 2-30 A) cover a broad range of applications, simplifying bill of materials. In practice, engineers can reuse the same family fuse across multiple equipment variants, reducing inventory and procurement time. Compact form factor and non-indicating indicator reduce panel clutter and simplify installation. Measuring 0.75 in width and depth with a 4.35 in height, the FWP-40 integrates into crowded control panels while maintaining clear visibility for status checks, without unnecessary indicators. Compatibility with Bussmann catalogs and standard packaging streamlines sourcing. The standard packaging and catalog availability help procurement teams align with existing Eaton/Bussmann inventories, while the 0.18 lb weight makes handling easier on assembly lines. Reliability and field support reinforce long-term performance. Eaton provides datasheets, technical resources, and factory verification of current certifications; using the FWP-40 supports safer, compliant protection for high-speed circuits, with predictable maintenance planning.
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FAQs
The FWP-40 is a compact, non-indicating fuse with a 0.75 inch width and depth and a 4.35 inch height, weighing about 0.18 lb. It fits standard Bussmann series panel assemblies and can be mounted in common fuse holders without special adapters. Ensure adequate clearances for heat dissipation and verify catalog compatibility with your panel design.
FWP-40 supports multiple voltage ratings: 1400 Vac for FWS 8-15 A, 2100 Vac for FWS 2-6 A, and 1000 Vdc for FWL/FWS 2-30 A. This range makes it suitable for high-speed protection in both AC motor drives and DC link applications, enabling a single family fuse across varied equipment while maintaining fast response times.
Yes, the FWP-40 family includes 1000 Vdc ratings (FWL/FWS 2-30 A) suitable for DC bus protection in motor drives and power electronics. When selecting, confirm the exact current rating and wiring arrangement in your drive topology, and reference the Eaton datasheets for applicable trip curves and installation notes to ensure proper protection without nuisance trips.
Certifications for Bussmann series devices are region-specific. The catalog indicates ‘Compliances: Contact factory/Contact Manufacturer,’ so verify current approvals with Eaton for your location. Typical industry marks in this family include CE, UL recognition, and IEC/EN references; your regional sales engineer can provide current certificates and testing documentation.
The FWP-40’s ultra-fast trip reduces fault energy, limiting damage to drives and downstream equipment, which lowers repair costs and downtime. Its broad voltage compatibility simplifies stocking, reducing spare parts variety. The non-indicating design streamlines panel assembly, while standard catalog availability supports faster procurement and consistent preventive maintenance planning.