Eaton KWN-R-25 Fuse - Class RK1, Knife blade
Part Number: KWN-R-25
Quick Summary
The Eaton KWN-R-25 fuse protects industrial control panels and motor circuits with dependable overcurrent protection. Engineers often face unpredictable fuse trips and costly downtime; this model offers a predictable trip profile and straightforward replacement. There are no explicit CE, SIL, or IP certifications listed in the provided data; consult the Eaton datasheet for final certification status. With RK1 class behavior and a compact 2 in length, it supports easier panel layouts and lower inventory costs. This translates to improved uptime, easier spare-part logistics, and consistent protection aligned with standard Bussmann series practices. Its non-indicating fuse indicator reduces nuisance trips when viewed in low-light cabinets, while the knife blade design supports fast, safe replacements.
Product Information
Extended Description
KWN-R-25 Eaton: Eaton Bussmann series KWN-R fuse, 25 A, Class RK1, Non-indicating, Standard
Product Name
Eaton Bussmann series KWN-R fuse
Catalog Number
KWN-R-25
UPC
051712407571
Product Length/Depth
2 in
Product Height
0.56 in
Product Width
0.56 in
Product Weight
0.4 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
25 A
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
Special features
Knife blade
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - KWN-R-25
Feature: The KWN-R-25 offers a 25 A amperage rating with Class RK1 timing characteristics. Business Impact: This pairing provides fast, predictable fault clearing, protecting motors and contactors while minimizing collateral damage and downtime. Application: It is well suited for industrial control panels and power distribution boards that require reliable overcurrent protection in a compact form factor. Feature: Knife blade design in the Bussmann series fuse. Business Impact: Provides robust contact, stable performance under vibration, and easy field replacements. Application: Beneficial in panel assemblies subject to mechanical motion or shocks, where service time matters. Feature: Compact 2 in length and 0.56 in square cross-section fits standard fuse holders. Business Impact: Enables denser panel layouts and easier inventory management, reducing assembly time and stocking costs. Application: Ideal for tight spaces in machine control cabinets and distributed power circuits. Feature: Non-indicating fuse status. Business Impact: Reduces visual clutter in enclosures, but requires a planned test or indicator strategy to confirm operation. Application: Useful where remote annunciation exists or where minimal panel indicators are preferred. Feature: Compatibility with Eaton Bussmann series and standard RK1 hardware. Business Impact: Simplifies procurement and replacement across existing fleets, lowering maintenance overhead. Application: Appropriate for facilities already using Bussmann series components in control and power protection. Feature: Access to authoritative documentation. Business Impact: The availability of datasheets and catalogs supports compliance, recommended operating conditions, and safe installation. Application: Engineers should reference the Eaton Specification Sheet for KWN-R-25 during design and service.
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FAQs
To install the KWN-R-25, power down the equipment and verify the holder is compatible with a 2 in, Class RK1 fuse. Align the knife blade contacts, seat the fuse fully, and secure any clip or retainer per the enclosure design. Replace like-for-like, then re-energize and verify proper trip behavior on the protected circuit.
The KWN-R-25 is a 25 A fuse with Class RK1 characteristics and a non-indicating indicator. It measures 2 inches in length with a 0.56 inch width and height, and uses a knife blade design for reliable contact. Catalog number KWN-R-25 and UPC 051712407571 support traceability and stocking.
Yes. The 25 A rating and RK1 class are suitable for industrial control panels and motor circuits requiring dependable overcurrent protection. Its compact 2 in body length facilitates tight panel layouts, and its compatibility with Bussmann-series holders supports straightforward integration into automation and process equipment environments.
The provided data does not list CE, SIL, or IP certifications for this part. Verify compliance by consulting the official Eaton datasheet for KWN-R-25 or contacting Eaton technical support. If certification is required for your application, obtain the authoritative certification documentation from Eaton to confirm regional and industry approvals.
Standardizing on the KWN-R-25 reduces downtime by using a consistent 25 A RK1 fuse across equipment. Its compact form and knife blade design shorten replacement time, aiding quick service in high-availability automation. Stocking on the Bussmann series simplifies procurement and spare-part logistics, delivering measurable maintenance efficiency gains.