Eaton JKS-45 Fuse - Class J, 200 kAIC at 600 Vac
Part Number: JKS-45
Quick Summary
Eaton JKS-45 fuse delivers fast-acting, current-limiting protection for industrial control circuits. Engineers often face nuisance trips and costly downtime when protection is either too aggressive or under-sized for the load. This Class J, 45 A fuse is designed to clear reliably at high fault currents with a 200 kAIC interrupt rating at 600 Vac, while meeting CE and RoHS requirements. By combining a compact footprint with standard ferrule-end connections, it supports quick installation in control panels and machine layouts. For system integrators and procurement teams, the JKS-45 offers predictable performance, global compatibility, and a commonly stocked Bussmann-series solution that reduces spare-part complexity and inventory costs.
Product Information
Extended Description
JKS-45 Eaton: Eaton Bussmann Series Class J fuse, JKS, fast-acting, current limiting fuse, 45 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series JKS fuse
Catalog Number
JKS-45
UPC
051712630450
Product Length/Depth
2.38 in
Product Height
1 in
Product Width
1 in
Product Weight
0.17 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
45 A
Interrupt rating
200 kAIC at 600 Vac
Voltage rating
600 V
Number of elements
1
Packaging type
Standard
Class
Class J
Connection
Ferrule end x ferrule end
Fuse indicator
Non-indicating
Quantity
10
Special features
Indicating
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series JKS Class J data sheet no. 1026
Feature → Business Impact → Application: The JKS-45 is a fast-acting current-limiting Class J fuse, which minimizes arc energy and accelerates fault clearance. This reduces heat damage and downtime in sensitive control circuits, enabling more reliable machine operation and lower maintenance costs in manufacturing lines. Application: panel boards, motor starters, and machine control networks in industrial automation. The 45 A rating aligns with typical control-circuit loads, improving protection accuracy while avoiding nuisance tripping caused by transient inrush or small overloads. Feature → High interrupt rating: 200 kAIC at 600 Vac, which provides a robust safety margin for heavy fault conditions, protecting downstream components and ensuring safer startups in power distribution panels. Application: large control panels in process industries and packaging lines. Feature → 600 V voltage rating and ferrule end x ferrule end connections, offering straightforward integration with standard fuse holders and quick field installation, reducing commissioning time and errant wiring. Application: machine enclosures and control cabinets. Feature → Compliance and packaging: CE Marked and RoHS compliant support global regulatory requirements and sustainability goals, while standard packaging of 10 units streamlines procurement and inventory planning. Application: supply-chain teams seeking reliable, scalable protection with predictable lead times. Feature → Special features include indicating capability, enabling quick status checks in maintenance rounds, though the base non-indicating profile supports silent operation in noise-critical environments. Application: critical systems where fuse-status monitoring is part of the maintenance protocol.
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FAQs
The JKS-45 uses ferrule end connections designed for standard Bussmann series fuse holders. Verify that your panel block supports Class J ferrule-end fuses and is sized for 45 A loads. The compact 2.38 in length and 1 in square footprint simplify horizontal and vertical mounting in crowded control panels, reducing cabling complexity and easing replacement.
Key specs include a 45 A amperage rating, a 200 kAIC interrupt rating at 600 Vac, and a 600 V voltage rating. It is a fast-acting, current-limiting Class J fuse designed to protect sensitive loads while minimizing arc energy during faults, suitable for controller circuits and motor-start protection.
Yes. The JKS-45 is CE Marked and RoHS compliant, ensuring regulatory alignment for global deployments. This helps with market access, supplier qualifications, and sustainability goals in industrial environments.
Typical applications include control panels, motor starters, and machine control circuits in manufacturing, packaging, and process industries. Its 45 A rating and high interrupt capability make it suitable for protecting feeders and control circuits in medium-load equipment.
The JKS-45 provides reliable protection that minimizes downtime from nuisance trips and catastrophic faults. With standard packaging of 10 units and compatibility with existing Bussmann-series hardware, procurement is streamlined, reducing spare-parts investment and improving maintenance response time.