Eaton SC-20 Class G fuse - 100 kAIC at 600 Vac
Part Number: SC-20
Quick Summary
Eaton SC-20 Class G fuse is a fast-acting protective device designed for industrial control panels. It helps prevent nuisance trips and equipment damage by accurately interrupting fault currents. CE marked and RoHS compliant, it pairs European regulatory alignment with dependable performance, and it offers a high interrupt rating for demanding applications. With a 20 A amperage, 600 Vac voltage rating, and 170 Vdc capability, it covers both AC and DC protection scenarios common in automation environments. The unit’s compact form factor and ferrule-end connections simplify installation in crowded panels, enabling reliable protection without sacrificing space. This combination supports uptime, safety, and regulatory compliance across machine builders and end users.
Product Information
Extended Description
SC-20 Eaton: Eaton Bussmann Series Class G fuse, SC, fast-acting, current limiting fuse, 20 A, rejection style fuse, interrupting rating of 100 kA at 600 Vac and 10 kA at 170 Vdc
Product Name
Eaton Bussmann series SC fuse
Catalog Number
SC-20
UPC
051712250207
EAN
5027590455053
Product Length/Depth
1.375 in
Product Height
0.375 in
Product Width
0.375 in
Product Weight
0.016 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
20 A
Interrupt rating
100 kAIC at 600 Vac 10 kAIC at 170 Vdc
Response time
12 sec at 200%
Voltage rating
600 Vac, 170 Vdc
Packaging type
Standard
Class
Class G
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Ferrule design, Type P
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series Rejecting Fuses data sheet no. 1024
Feature is fast-acting Class G fuse design with current-limiting protection that minimizes fault energy. Business impact includes reduced arc damage, shorter downtime, and improved equipment lifespan in demanding automation environments. Application: control panels and machine protection where tight protection and selectivity are essential. Feature is 20 A amperage rating paired with 100 kAIC interrupt rating at 600 Vac and 10 kAIC at 170 Vdc, delivering robust performance during short circuits. Business impact: protects high-current loads and sensitive electronics while shedding fault energy quickly; application: feeders and motor circuits in European and North American facilities. Feature is ferrule-end x ferrule-end connection and Type P ferrule design for easy installation and reliable terminations. Business impact: faster field replacement, safer maintenance, and compatibility with standard terminal blocks. Application: compact control enclosures and panel boards where space is at a premium. Feature is non-indicating fuse indicator and standard packaging for simple inventory management. Business impact: reduces misreading trips and streamlines stocking in maintenance depots. Application: maintenance planning and spare-part optimization across mixed automation lines. Feature is RoHS compliant and CE Marked, supporting regulatory compliance and sustainability objectives. Business impact: simplifies procurement for compliant fleets and minimizes compliance risk. Application: European manufacturing environments with strict material controls. Feature is small footprint dimensions (1.375 in length, 0.375 in height, 0.375 in width) and light 0.016 lb weight. Business impact: enables dense panel layouts and lightweight field installability. Application: space-constrained panels, robotics, and compact drives. Feature is rejection-style SC fuse design that prevents mis-insertion in fuse blocks. Business impact: reduces installation errors and maintenance downtime. Application: standard Bussmann SC fuse blocks in automation cabinets. Feature is 12-second response at 200% overcurrent, reflecting a balance of protection speed and selectivity. Business impact: guards against short-circuit damage while allowing controlled operation under transient faults. Application: critical automation loops requiring dependable protection without nuisance trips.
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FAQs
SC-20 uses ferrule-end x ferrule-end connections with a Type P ferrule design, enabling straightforward installation in common terminal blocks. This compatibility minimizes wiring complexity, reduces terminal torsion, and supports quick field replacements. For best results, pair with matching Bussmann SC blocks and ensure ferrule sizes align with your conductor gauge to maintain secure terminations and reliable protection.
SC-20 delivers a 20 A rating with a 100 kAIC interrupt rating at 600 Vac, plus 10 kAIC at 170 Vdc. This current-limiting performance minimizes fault energy, protects downstream components, and reduces arc damage during short circuits. It is ideal for feeders and motor circuits in automated lines where high fault currents can occur, helping to maintain uptime and safety.
Yes, SC-20 supports DC protection with a rating of 170 Vdc and an interrupt rating of 10 kAIC at 170 Vdc. This makes it suitable for mixed AC/DC applications found in automation and control panels. When selecting, ensure the circuit voltage stays within the 170 Vdc limit and that the desired protection level matches the application’s fault-current profile.
SC-20 is CE marked and RoHS compliant, aligning with European regulatory standards and restricted-substance requirements. This combination simplifies sourcing for compliant assemblies, reduces regulatory risk in European factories, and supports sustainable manufacturing practices across automation projects.
When replacing an SC-20, use an identical model to maintain established protection levels. Since SC fuses are non-indicating, investigate the trip cause off-line before replacement to prevent recurring faults. Keep spare SC-20 units in inventory and verify ferrule-end connections are clean and properly seated to ensure immediate, reliable protection after replacement.