Eaton LESRK9 Fuse - RK1 Class, 200 kAIC, 600 V UL Listed
Part Number: LESRK9
Quick Summary
The Eaton Edison LESRK fuse protects electric motors by interrupting overloads in demanding industrial drives. This non-indicating, RK1-class fuse is designed for high inrush current protection in 9 A circuits up to 600 V. Engineers often battle nuisance tripping and equipment damage during motor startups, and LESRK9 offers predictable protection without false alerts. It carries UL Listed and CSA Certified marks, reassuring compliance in regulated environments, while delivering a robust 200 kAIC interrupt rating for fault reliability. The compact 5 in length and standard packaging simplify retrofits in crowded control panels, supporting fast installation. By combining reliable protection with clear specifications, it reduces downtime and maintenance costs for motor-driven processes.
Product Information
Extended Description
LESRK9 Eaton: Eaton Edison LESRK fuse, Non-indicating, High in-rush current motor protection, 9 A, Class RK1, 200 kAIC, Standard, 600 V
Product Name
Eaton Edison LESRK fuse
Catalog Number
LESRK9
UPC
782634548294
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
1.6 lb
Warranty
No warranty
Compliances
Not Applicable
Certifications
UL Listed CSA Certified
Amperage Rating
9 A
Interrupt rating
200 kAIC
Voltage rating
600 V
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
Special features
Non-indicating
RK1-class design with a 9 A rating delivers targeted motor protection, reducing nuisance trips and extending drive life. This translates to improved uptime and lower maintenance costs for fans, pumps, and conveyors in demanding industrial environments. With a 200 kAIC interrupt rating and 600 V capacity, LESRK9 provides reliable fault isolation for common motor-start surges, while maintaining coordination with upstream protection devices. The non-indicating feature avoids false positives in indicator-heavy panels, helping technicians diagnose actual faults faster. Non-indicating status simplifies panel wiring and commissioning in space-constrained enclosures. By eliminating visual indicators, technicians can focus on process signaling while relying on upstream protective devices for status checks. This reduces panel complexity during retrofits and minimizes misdiagnosis caused by indicator faults. The 5 inch length fits standard motor control centers and junction boxes, enabling straightforward substitutions without redesigns. The 200 kAIC interrupt rating at 600 V ensures rapid fault clearance, protecting winding insulation and avoiding collateral damage to drives and feeders. This performance supports safe operation in conveyors, pumps, and HVAC units, while maintaining coordination with circuit breakers and contactors in standard protection schemes. In challenging environments, the fuse's rugged construction contributes to longer service intervals and lower total cost of ownership. Compact 5 in length and standard packaging make LESRK9 easy to substitute in existing assemblies, cutting installation time and inventory costs. The catalog number aligns with Eaton's Edison Bussmann line, helping procurement teams source compatible fuses from a single supplier and simplify stocking. Easy replacement at end-of-life reduces downtime during maintenance outages. UL Listed and CSA Certified provide regulatory assurance for North American installations, reducing qualification risk and accelerating approvals in new builds or upgrades. With Class RK1 protection and precise amperage, the LESRK9 supports safe, compliant motor protection without overengineering. Designers benefit from consistent performance data and familiar specifications to streamline design reviews.
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FAQs
Yes. LESRK9 uses standard dimensions (5 in length, 0.81 in width) and a catalog number compatible with the Bussmann Edison line. It is designed for 600 V systems and a 9 A rating, ensuring proper protection for small-motor circuits. When substituting, verify upstream coordination and mounting clearances, but no panel redesign is typically required.
LESRK9 provides a 9 A amperage rating, a 200 kAIC interrupt rating, and a 600 V voltage rating. These specs indicate suitability for protecting small-to-medium motors against short-circuit faults, while tolerating startup surges common in industrial equipment. The 200 kAIC rating ensures rapid fault interruption to minimize insulation damage and downtime.
LESRK9 is well suited for small to mid-size motors in conveyors, pumps, and HVAC or processing lines where moderate motor loads experience periodic inrush. Its RK1 classification and 9 A rating align with protective coordination in standard control schemes, helping ensure motor uptime and protecting equipment without overprotecting or triggering unnecessary outages.
LESRK9 is UL Listed and CSA Certified, providing regulatory validation for North American installations. These certifications help streamline project approvals, satisfy procurement requirements, and reduce risk during audits. Relying on certified components also supports safer, code-compliant motor protection in critical industrial applications.
The non-indicating design reduces panel clutter and simplifies diagnostics by emphasizing process signals rather than fuse indicators. Its compact size and standard catalog compatibility ease retrofits and stocking, lowering installation and maintenance labor. The reliable 9 A, 200 kAIC, 600 V ratings translate to predictable protection, reducing downtime and extending motor life, delivering measurable ROI over time.