Eaton LESRK250 Fuse - Class RK1, 200 kAIC, 600 V
Part Number: LESRK250
Quick Summary
The Eaton LESRK250 fuse is a motor-protection device designed to safeguard motor circuits in industrial drives. Engineers often battle nuisance tripping during motor startups and inrush events; this fuse handles high inrush currents while protecting cables. UL Listed and CSA Certified, with RoHS compliance, ensure regulatory alignment and safe panel materials. For panel builders and OEMs, the 600 V rating, 250 A capacity, and 200 kAIC interrupt rating translate to fewer replacements. This supports safety programs and helps meet regulatory requirements for rugged environments. As a non-indicating design, maintenance is simpler, while electrically isolated end caps improve safe servicing. In short, LESRK250 delivers reliable RK1 motor protection for demanding industrial applications.
Product Information
Extended Description
LESRK250 Eaton: Eaton Edison LESRK fuse, Non-indicating, High in-rush current motor protection, Electrically isolated end caps, 250 A, Class RK1, Non-indicating, 200 kAIC, Standard, 1, 600 V
Product Name
Eaton Edison LESRK fuse
Catalog Number
LESRK250
UPC
782634548522
Product Length/Depth
11.63 in
Product Height
2.36 in
Product Width
2.36 in
Product Weight
2.36 lb
Warranty
No warranty
Compliances
RoHS Compliant
Certifications
CSA Certified UL Listed
Amperage Rating
250 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
High inrush current motor protection is embedded in the LESRK250 to tolerate startup surges without nuisance tripping. The design directly reduces unplanned downtime and maintenance costs by keeping essential motors energized during legitimate inrush events while still providing reliable fault protection. In practice, this means smoother starts for conveyors, pumps, and fans, and fewer urgent service calls driving production delays. Class RK1, 250 A, and a 200 kAIC interrupt rating establish rugged short-circuit interruption for demanding drive systems. The LESRK250 clamps fault currents quickly while minimizing voltage collapse that can damage wiring and contactors, translating into reduced component wear and longer panel life. This makes it a dependable choice for motor feeders in heavy industry where reliability is critical. Non-indicating design simplifies panel assembly by eliminating visual status indicators that complicate wiring and service. With standard packaging and a compact footprint, installation aligns with existing electrical protection layouts and minimizes changes to control schematics. This approach reduces training needs for maintenance staff and accelerates commissioning in new builds or retrofits without compromising diagnostic clarity. Electrically isolated end caps improve safety during servicing, protecting technicians from incidental energization while enabling clean disconnections for testing. For OEMs, this translates to fewer field failures and more predictable performance in critical production lines. RoHS compliant materials with UL Listed and CSA Certified status support procurement and regulatory compliance across North American facilities. The LESRK250 integrates with 600 V motor circuits and 250 A feeders, delivering trusted RK1 protection without forcing complex certifications. When combined with Eaton's full Edison fuse family, it offers scalable protection and straightforward sourcing for mid- to high-power drives.
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FAQs
The LESRK250 is designed for 600 V systems and 250 A circuits, with RK1 class protection and a standard packaging footprint. It integrates into typical motor feeder arrangements and control panels without requiring custom mounting hardware. For panel builders, the fuse aligns with common protection schemes, simplifies wiring diagrams, and supports straightforward replacement during maintenance cycles.
LESRK250 is built to handle high inrush currents thanks to its 200 kAIC interrupt rating, which allows legitimate startup surges to pass without nuisance trips. This protection minimizes unplanned downtime and preserves motor drive integrity, especially in conveyors, pumps, and fans where starting torque and surge events are frequent.
Yes. The LESRK250 is RoHS compliant and carries UL Listed and CSA Certified markings. These certifications support regulatory compliance in North American facilities and simplify procurement for regulated environments, ensuring materials and construction meet established safety and environmental standards.
Key certifications include UL Listed and CSA Certified, complemented by RoHS compliance. These ensure electrical safety, traceability, and environmental standards for equipment installed in industrial facilities. While CE marking is common in other regions, UL and CSA are the primary North American indicators of compliance for this product.
Non-indicating design reduces visual clutter in control panels and simplifies wiring diagrams. Maintenance teams rely on system-level status indicators or meter checks to verify fuse health, while the isolated end caps enhance safety during testing. For routine diagnostics, using appropriate test equipment and panel documentation ensures quick fault verification without unnecessary disassembly.