Eaton LESRK350I Fuse - Inrush motor protection, UL Listed
Part Number: LESRK350I
Quick Summary
Eaton Edison LESRK fuse provides motor protection for high inrush loads in industrial drives and equipment. Engineers often battle nuisance trips during motor start-up, high-inertia starts, or transient surges, which can lead to unplanned downtime and maintenance costs. This device combines UL Listed and CSA Certified compliance with electrically isolated end caps and a 350 A rating to deliver dependable protection in 600 V systems. Its non-indicating design reduces visual wear and simplifies maintenance, while the high interrupt rating supports safer operation under fault conditions. As part of Eaton's electrical protection & circuit control portfolio, the LESRK350I offers reliable motor protection with documented performance, enabling safer, more efficient production environments.
Product Information
Extended Description
LESRK350I Eaton: Eaton Edison LESRK fuse, Indicating, High in-rush current motor protection, Electrically isolated end caps, 350 A, Non-indicating, 200 kAIC, Standard, 1, 600 V
Product Name
Eaton Edison LESRK fuse
Catalog Number
LESRK350I
UPC
782634990628
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
Not Applicable
Certifications
UL Listed CSA Certified
Amperage Rating
350 A
Interrupt rating
200 kAIC
Voltage rating
600 V
Packaging type
Standard
Fuse indicator
Non-indicating
Quantity
1
Special features
Indicating, High in-rush current motor protection
Feature: The LESRK350I fuse provides a 350 A nominal amperage with a 200 kAIC interrupt rating for 600 V circuits. Business Impact: This combination significantly reduces nuisance trips, limits arc flash exposure risk during faults, and minimizes gear damage to motor starters, drive controllers, and contactors, translating into higher line availability. Application: Ideal for demanding drives in conveyors, pumps, HVAC, and heavy equipment where startup surges, motor inrush, and short-circuit events can otherwise halt production.\n\nFeature: Indicating capability supports rapid fault identification and accurate trending of inrush conditions. Business Impact: Quick fault isolation decreases maintenance overhead, enables condition-based servicing, and improves mean time to repair (MTTR) metrics in critical lines. Application: Particularly valuable in packaged lines, material handling systems, and process automation panels where downtime is costly and diagnostics must be fast.\n\nFeature: Electrically isolated end caps simplify maintenance and improve safety by preventing unintended current paths during replacement. Business Impact: This design reduces the risk of energizing adjacent circuits during servicing, lowers troubleshooting time, and supports lockout-tagout procedures safely. Application: Beneficial in switchgear, motor control centers, and cabinet installations with dense wiring where servicing is frequent.\n\nFeature: Certifications and regulatory alignment—UL Listed and CSA Certified—validate compliance for U.S. and Canadian markets. Business Impact: These certifications streamline procurement approvals, facilitate OEM certification, and support audits for safety and reliability in regulated industries. Application: Required in mechanical integration projects, OEM drive assemblies, and panel builds across manufacturing, water treatment, and mining environments.\n\nFeature: Standard packaging, 11.63 in length, 2.36 in width, 2.36 in height, and a weight of about 2.36 lb; 1 piece per package. Business Impact: Streams stocking, reduces inventory variety, and accelerates replacement cycles, driving lower maintenance costs and better spares planning. Application: Well suited for panel builders, distributors, and maintenance teams seeking predictable lead times and plug-and-play replacement in Eaton Bussmann-style fuse blocks.
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FAQs
LESRK350I is designed for standard motor protection circuits rated at 600 V and 350 A. It ships as a single standard unit with standard packaging, making replacement straightforward in Eaton Bussmann-style fuse blocks and common industrial panels. Check your enclosure’s fuse footprint to ensure a 11.63 in x 2.36 in x 2.36 in body fits your control cabinet, with 200 kAIC interrupt capability.
Key specs include a 350 A amperage rating, 200 kAIC interrupt rating, and a 600 V maximum voltage rating. The component ships with standard packaging and is UL Listed CSA Certified, ensuring regulatory compliance. It weighs roughly 2.36 lb and fits within typical DIN rail or panel-mount fusing schemes for motor starters and drives.
Yes. The LESRK350I is designed for high inrush protection with a 350 A rating and a 200 kAIC interrupt capacity, enabling reliable startup of heavy motors in conveyors, pumps, and HVAC systems. Its 600 V rating matches common plant supplies, and its robust construction minimizes nuisance trips during startup while maintaining safe isolation during fault events.
UL Listed and CSA Certified, LESRK350I meets essential electrical safety and performance standards for industrial protection devices. These certifications help ensure compliance with customer procurement policies and regulatory requirements in North America. They also simplify validation for OEMs integrating the fuse into motor control panels and drives in critical process environments.
Maintenance is straightforward: use a standard replacement fuse within standard packaging, and monitor for any physical damage or signs of wear in the enclosure. There is no warranty, so procurement should count on consistent supplier lead times. For reliability, ensure the installation respects 600 V rating, 350 A load, and 200 kAIC interrupt capacity, with proper panel clearance.