Eaton SC-40 Fuse - Class G, 100 kAIC @ 480 Vac
Part Number: SC-40
Quick Summary
The Eaton SC-40 fuse provides fast-acting overcurrent protection for industrial control panels. Choosing a fuse that reliably protects critical equipment while minimizing nuisance trips is a common procurement challenge. This solution is CE marked and RoHS compliant, with a rugged 100 kAIC interrupt rating at 480 Vac and a 40 A current rating. For panel builders and OEMs, the SC-40 simplifies sourcing with ferrule-end connections and a consistent form factor, helping reduce install time and improve maintenance planning. Its standardized dimensions and compatibility with Bussmann catalog data streamline design reviews and spare-part stocking.
Product Information
Extended Description
SC-40 Eaton: Eaton Bussmann Series Class G fuse, SC, fast-acting, current limiting fuse, 40 A, rejection style fuse, interrupting rating of 100 kA at 480 Vac and 10 kA at 300 Vdc
Product Name
Eaton Bussmann series SC fuse
Catalog Number
SC-40
UPC
051712250405
Product Length/Depth
2.25 in
Product Height
0.41 in
Product Width
0.41 in
Product Weight
0.35 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
40 A
Interrupt rating
100 kAIC at 480 Vac 10 kAIC at 300 Vdc
Response time
12 sec at 200%
Voltage rating
480 Vac, 300 Vdc
Packaging type
Standard
Class
Class G
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Ferrule design, Type P
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Rejecting Fuses data sheet no. 1024
Feature → Business Impact → Application: The SC-40 is a fast-acting Class G current-limiting fuse rated at 40 A, delivering precise protection that minimizes arc flash risk and equipment damage in control circuits. This translates to shorter downtime and lower maintenance costs in high-demand manufacturing lines and process automation. Application: ideal for protecting motor starters, PLC power rails, and panel feeders where a reliable, high-interrupting-capacity device is essential. Feature → Compatibility → Application: Ferrule end x ferrule end provides a robust termination compatible with standard ferrule tooling and crimping procedures, reducing termination errors and enabling quick field servicing in distribution panels. Application: ready for on-site replacements and OEM panel fabrication without special adapters. Feature → Regulatory → Application: 480 Vac / 300 Vdc ratings comply with common industrial power environments, while CE and RoHS certifications assure market readiness and risk mitigation for global deployments. Application: supports cross-border installations and supplier consolidation for protection devices. Feature → Performance → Application: 12-second response at 200% of rated current delivers reliable protection without excessive nuisance trips in dynamic load profiles typical of automation equipment. Application: protects controllers, sensors, and drives in paper, food & beverage, and automotive segments. Feature → Reliability → Application: 100 kAIC at 480 Vac and 10 kAIC at 300 Vdc offer strong fault handling for both AC and DC segments in mixed-signal controls, enabling safer, more resilient electrical infrastructure.
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FAQs
The SC-40 uses ferrule end x ferrule end terminals, aligning with standard ferrule tooling for quick, secure terminations. Its 2.25 inch length and 0.41 inch width/height fit typical Bussmann-style fuse holders, simplifying panel layout and reducing field wiring errors. Ensure proper crimp tooling and compatible carrier blocks to maintain the device’s intended protection curve.
The SC-40 is a 40 A, fast-acting, current-limiting Class G fuse with an interrupt rating of 100 kAIC at 480 Vac and 10 kAIC at 300 Vdc. It provides a 12-second response time at 200% overload and is rated for 480 Vac and 300 Vdc, making it suitable for mixed AC/DC protection in industrial controls.
Yes. The SC-40 uses ferrule end terminations and adheres to Bussmann series specifications, including the Class G design and ferrule design features. Refer to Bussmann’s catalog and data sheets (SC-40 in the Bussmann series) for compatible holders, fusing accessories, and replacement parts to ensure correct alignment with panel designs.
The SC-40 carries CE marking and RoHS compliance, ensuring suitability for European markets and adherence to hazardous substance restrictions. These certifications support regulatory compliance, reduce risk in multinational projects, and simplify procurement with globally recognized standards for electrical protection devices.
Choosing the SC-40 can lower total cost of ownership by reducing nuisance trips, limiting arc flash exposure, and shortening downtime through reliable 40 A protection with a high interrupt rating. Its standardized size and ferrule termination help streamline stocking, sourcing, and on-site maintenance across multiple production lines and OEM builds.