Eaton LESRK175 Fuse - Class RK1, 200 kAIC UL Listed
Part Number: LESRK175
Quick Summary
The Eaton LESRK175 fuse provides dependable overcurrent protection for high-inrush motor circuits in industrial applications. It safeguards motors, drives, and control panels from damaging faults while tolerating the initial surge that accompanies startup. Engineers often struggle with nuisance trips and misleading fuse indication; this non-indicating RK1 fuse combines robust interrupt capability with reliable performance. It carries UL Listed and CSA Certified approvals, ensuring compliance for critical electrical installations and safety reviews. The device is designed for Eaton Edison fuse blocks and standard motor protection assemblies, giving users a straightforward retrofit or upgrade path. With a 600 V rating and 175 A capacity, it supports reliable protection across a range of equipment while helping lower unplanned downtime and maintenance costs.
Product Information
Extended Description
LESRK175 Eaton: Eaton Edison LESRK fuse, Non-indicating, High in-rush current motor protection, Electrically isolated end caps, 175 A, Class RK1, 200 kAIC, Standard, 1, 600 V
Product Name
Eaton Edison LESRK fuse
Catalog Number
LESRK175
UPC
782634548492
Product Length/Depth
9.63 in
Product Height
1.61 in
Product Width
1.61 in
Product Weight
1.1 lb
Warranty
No warranty
Compliances
Not Applicable
Certifications
UL Listed CSA Certified
Amperage Rating
175 A
Interrupt rating
200 kAIC
Voltage rating
600 V
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
Quantity
1
Special features
Non-indicating, High in-rush current motor protection
Feature: 175 A current rating with a 200 kAIC interrupt rating at 600 V. Business Impact: Delivers fast, secure fault clearance for high-power motors, reducing arc flash risk and minimizing detrimental voltage dips that could affect downstream drives. Application: Suitable for motor starters, conveyors, and pump trains in manufacturing environments where startups generate significant inrush currents. Long-tail keywords embedded: high interrupt rating fuses, 175 amp motor protection, 600 V high-power fuses. Feature → Business Impact → Application: This combination supports safer panel design, enables compliant protection schemes, and lowers total cost of ownership by limiting unplanned downtime and equipment damage. Feature: Class RK1, non-indicating design for streamlined installation. Business Impact: Simplifies panel wiring and maintenance scheduling while meeting standard protective classifications. Application: Common in Eaton Edison assemblies and retrofit projects where minimal status indication is acceptable and space is at a premium. Feature: Electrically isolated end caps and robust construction. Business Impact: Enhances technician safety during replacement and reduces contact resistance or contamination risk. Application: Field services and factory maintenance in harsh environments where reliability matters. Feature: Certifications UL Listed and CSA Certified. Business Impact: Demonstrates regulatory compliance and supplier reliability for audits and procurement. Application: Critical across industries requiring verified safety standards and traceability. Feature: 9.63 in length, 1.61 in width, 1.1 lb weight; standard packaging. Business Impact: Predictable form factor simplifies stocking, closet or panel mounting, and compatibility with existing Bussmann-series cabinets. Application: OEM equipment, control panels, and retrofit projects aiming for consistent mechanical fit and quick procurement.
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FAQs
The LESRK175 fits standard Edison fuse blocks designed for RK1 class fuses. Ensure the host block is rated for 600 V and can physically accept a 9.63 inch long fuse. Align end caps with conductors, insert fully, and verify electrical isolation before energizing. If the fuse is replacement-only, disconnect power, remove the existing element, and install the LESRK175 with the same torque specs used for other RK1 fuses in the series.
LESRK175 has a 200 kAIC interrupt rating and a voltage rating of 600 V. This combination provides robust short-circuit protection for motor circuits and drives while tolerating startup surges. The 175 A continuous rating ensures protection is aligned with typical motor loads, reducing the risk of nuisance trips and ensuring safe, reliable operation in demanding environments.
Yes. LESRK175 is specifically designed for high in-rush current motor protection, balancing fast interruption with the ability to withstand startup surges. It is ideal for industrial drives, conveyors, pumps, and machine tools where motors experience brief but significant inrush. This results in fewer unnecessary trips and improved uptime without compromising protection.
LESRK175 is UL Listed and CSA Certified, confirming compliance with widely recognized safety standards. These certifications matter for regulatory audits, customer compliance requirements, and supplier qualification. They provide assurance that the fuse meets established safety and performance criteria, enabling easier procurement and installation within regulated environments.
Maintenance for LESRK175 is straightforward due to its non-indicating design, which reduces routine visual checks in large assemblies. Replacement is typically a like-for-like swap, ensuring minimal downtime. The ROI comes from reduced nuisance tripping, lower arc-flash exposure risk, and improved equipment protection, translating to less unplanned downtime and longer motor life in high-demand applications.