Eaton JKS-450 Fuse - Class J 200 kAIC at 600 Vac
Part Number: JKS-450
Quick Summary
The Eaton JKS-450 fuse is a fast-acting, current-limiting protection device for industrial power circuits and motor control panels. This solution helps engineers reduce nuisance fuse operations and minimize fault durations that drive unplanned downtime. It carries RoHS compliance, a 600 V rating, and an impressive 200 kAIC interrupt capacity, aligning with stringent plant and utility requirements. With Class J construction and bolted blade ends, it supports reliable, field-installable protection in demanding environments. By selecting this fuse in coordination with system loading, procurement and maintenance teams gain consistency, easier inventory management, and safer, more predictable operation across critical power paths.
Product Information
Extended Description
JKS-450 Eaton: Eaton Bussmann Series Class J fuse, JKS, fast-acting, current limiting fuse, 450 A, rejection style fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series JKS fuse
Catalog Number
JKS-450
UPC
051712634502
Product Length/Depth
8 in
Product Height
2.5 in
Product Width
2.5 in
Product Weight
3.25 lb
Warranty
Not Applicable
Compliances
RoHS Compliant
Amperage Rating
450 A
Interrupt rating
200 kAIC at 600 Vac
Voltage rating
600 V
Number of elements
1
Packaging type
Standard
Class
Class J
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Quantity
1
Special features
Indicating
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series JKS fast-acting Class J fuses, 70-600A technical data sheet no. 1027
Feature: 450 A amperage rating with 600 V voltage rating and 200 kAIC interrupt capacity → Business Impact: Provides high fault-current protection, reducing equipment damage and downtime in demanding industrial applications → Application: Suitable for motor control centers and power feeders in large panels. Feature: Class J fast-acting, current-limiting design → Business Impact: Limits fault energy quickly to minimize arc flash risk and wire insulation stress → Application: Protection of high-demand motors and drives in manufacturing lines. Feature: Bolted blade end x bolted blade end connections → Business Impact: Secure, vibration-resistant installation with straightforward field mounting → Application: Retrofit and new builds in standard enclosures. Feature: RoHS compliant construction → Business Impact: Simplifies regulatory compliance and supports sustainability programs → Application: Global manufacturing facilities with restricted materials requirements. Feature: Compact footprint (8 in length; 2.5 in x 2.5 in) and weight ~3.25 lb → Business Impact: Fits tight panel spaces and reduces enclosure redesign costs → Application: Panelboards, MCCs, and compact distribution panels.
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FAQs
The JKS-450 uses bolted blade end x bolted blade end connections. It measures 8 inches in length with a 2.5 inch width and 2.5 inch height, enabling secure installation in standard electrical enclosures and power distribution panels.
The JKS-450 is rated for 450 A at 600 V and provides an interrupt rating of 200 kAIC, making it suitable for high-current fault protection in industrial feeders and motor circuits.
Yes, the JKS-450 is RoHS compliant, supporting lead-free materials and restricted substances requirements across global markets.
Typical applications include motor control centers, power distribution panels, and feeder circuits in manufacturing plants where high short-circuit currents require reliable, fast-acting protection and coordination with upstream devices.
Technical resources include the Bussmann Full Line Catalog and the JKS fast-acting Class J data sheet (no. 1027). Additional materials such as the RoHS tool are available to verify compliance across regions.