Eaton BK/SC-20 Fuse - Class G, 20 A, 600 Vac, 170 Vdc
Part Number: BK/SC-20
Quick Summary
The Eaton BK/SC-20 fuse provides fast-acting protection for electrical circuits in industrial control panels. In high-availability systems, nuisance trips during inrush can cost downtime, so this time-delay design tolerates short surges without sacrificing protection. The device is RoHS compliant and leverages Class G current-limiting performance with 20 A, plus 600 Vac and 170 Vdc ratings for safe, versatile installations. Ferrule-end terminations simplify field wiring, bulk packaging lowers stocking costs, and the combination supports reliable performance in mixed AC/DC environments. Industries such as motor control, power supplies, and automation panels benefit from predictable response times, defined interrupt ratings, and Eaton's datasheet-backed reliability.
Product Information
Extended Description
BK/SC-20 Eaton: Eaton Bussmann series SC fuse, Current-limiting time-delay fuse, Rejection style, 20 A, Class G, Non-indicating, Ferrule end x ferrule end, 12 sec at 200%, 10 kAIC at 170 Vdc, 100 kAIC at 600 Vac, Bulk, 600 V, 170 Vdc
Product Name
Eaton Bussmann series SC fuse
Catalog Number
BK/SC-20
UPC
051712750110
Product Length/Depth
1.62 in
Product Height
0.41 in
Product Width
0.41 in
Product Weight
0.15 lb
Warranty
Not Applicable
Compliances
Not Applicable RoHS Compliant
Catalog Notes
Bulk
Amperage Rating
20 A
Interrupt rating
10 kAIC at 170 Vdc 100 kAIC at 600 Vac
Response time
12 sec at 200%
Voltage rating
600 Vac, 170 Vdc
Packaging type
Standard Bulk
Class
Class G
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Special features
Rejection style
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - BK/SC-20
Feature: Current-limiting time-delay fuse with a 12-second response at 200% overload; Business Impact: minimizes nuisance trips while protecting equipment during startup surges; Application: motor starters and power supplies in automation panels. The result is improved equipment life and reduced maintenance overhead. Feature: Rejection style design; Business Impact: prevents incorrect fuse selection and reduces field wiring errors; Application: standard and multi-fuse panels where correct matching is critical. Feature: Electrical ratings of 20 A, 600 Vac, and 170 Vdc; Business Impact: broad compatibility across AC and DC circuits, enabling a single part in mixed environments; Application: control circuits, drives, and power conversion stages. Feature: High interrupt ratings—10 kAIC at 170 Vdc and 100 kAIC at 600 Vac; Business Impact: robust fault-current protection, improving system resilience; Application: high-current industrial power rails and mains. Feature: Ferrule-end terminals, non-indicating, bulk packaging; Business Impact: easy installation, reliable terminations, and cost-effective stocking; Application: OEMs and service teams stocking spares for large panels. These features collectively support compliance, installation efficiency, and long-term operational reliability in harsh industrial settings.
Get a Quick Quote for a Eaton BK/SC-20
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton BK/SC-20?
Enquire Now
FAQs
BK/SC-20 fuses are well suited for industrial control panels, motor starters, and power supply protection where inrush currents are common. The 20 A rating with 600 Vac / 170 Vdc limits peak fault energy while the time-delay behavior accommodates startup surges, reducing nuisance trips and downtime. Ferrule-end terminals simplify field wiring and ensure solid connections in dense panel layouts.
The BK/SC-20 is a current-limiting time-delay fuse with a 12-second response at 200% overload, allowing normal inrush to pass without premature tripping. This yields reduced equipment wear on drives and transformers, lower maintenance costs, and greater system uptime in applications like motor control centers and power conversion stages.
The provided data confirms RoHS compliance and a Class G designation, with no explicit CE or SIL certifications listed for this model. For conclusive certification details, consult Eaton’s official datasheet or contact a representative to verify CE marking, SIL integrity, or IP ratings for your specific use case and region.
Rejection style design ensures the fuse is mechanically compatible only with the intended Bussmann SC-type holders, reducing the risk of cross-compatibility errors. This improves safety, prevents incorrect fuse use in mixed-family panels, and streamlines commissioning in multi-fuse assemblies common in automated equipment and control cabinets.
The BK/SC-20 provides a 20 A rating with 600 Vac and 170 Vdc voltage ratings, and high interrupt ratings of 10 kAIC at 170 Vdc and 100 kAIC at 600 Vac. Its response time is 12 seconds at 200% overload, delivering reliable protection for both AC and DC circuits in industrial environments.