Eaton LENRK400 Edison Fuse - UL Listed, 200 kAIC
Part Number: LENRK400
Quick Summary
Eaton LENRK400 Edison fuse protects motors from high inrush and fault currents in electrical drives. Without the right protection, startups trigger nuisance trips, downtime, and costly motor wear. UL Listed, CSA Certified, and RoHS Compliant ensure regulatory compliance and sustainable sourcing, while Class RK1 non-indicating design simplifies status indication in crowded panels. For panel builders and OEMs, LENRK400 offers reliable motor protection with easy integration, a compact 8.63 in length, and compatibility with 250 Vac / 125 Vdc systems, delivering measurable uptime and reduced maintenance. Engineers also appreciate the high interrupt rating of 200 kAIC, enabling protection for large motor loads.
Product Information
Extended Description
LENRK400 Eaton: Eaton Edison LENRK fuse, Non-indicating, High in-rush current motor protection, Electrically isolated end caps, 400 A, Class RK1, 200 kAIC, Standard, 1, 250 V, 125 Vdc
Product Name
Eaton Edison LENRK fuse
Catalog Number
LENRK400
UPC
782634538554
Product Length/Depth
8.63 in
Product Height
2.36 in
Product Width
2.36 in
Product Weight
0.001 lb
Warranty
No warranty
Compliances
RoHS Compliant
Certifications
UL Listed CSA Certified
Amperage Rating
400 A
Interrupt rating
200 kAIC
Voltage rating
250 Vac, 125 Vdc
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
Quantity
1
Special features
Non-indicating, High in-rush current motor protection
Feature: 400 A amperage rating with a 200 kAIC interrupt rating enables fast fault clearance during motor startups. Business impact: minimizes nuisance trips and protects motor windings, boosting uptime and longevity. Application: suited for large industrial drives, pumps, and conveyors with high inrush currents. Feature: Non-indicating end caps and electrically isolated ends simplify panel wiring and status readability. Business impact: reduces miswiring risk and improves technician efficiency during maintenance. Application: retrofit into crowded control panels and motor starter assemblies where clear clearance is needed. Feature: RoHS compliant and UL Listed CSA Certified construction confirms regulatory alignment. Business impact: accelerates approvals and supports sustainable product sourcing. Application: panel builds for process industries, OEM equipment, and compliant machinery across North America. Feature: Class RK1 non-indicating fuse design balances protection with compact form factor. Business impact: enables easy integration in standard sockets and fuse blocks, saving enclosure space. Application: field retrofits and new equipment in compact control panels. Feature: 250 Vac and 125 Vdc voltage ratings provide dual-voltage versatility. Business impact: reduces SKU complexity and inventory costs for mixed-voltage installations. Application: motor control centers, drives, and industrial automation cabinets.
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FAQs
LENRK400 is designed for straightforward replacement in standard class RK1 fuse blocks used with motor starters. Ensure the ratings match your circuit: 400 A, 250 Vac or 125 Vdc, and 200 kAIC interrupt capability. Install with electrically isolated end caps, proper alignment, and compliant RoHS wiring. The compact 8.63 in length fits typical panels, simplifying retrofits.
LENRK400 features a non-indicating design, enabling unobstructed monitoring while providing robust protection during motor startups. Its 400 A rating combined with a 200 kAIC interrupt rating ensures the fuse clears fault and surge events quickly without nuisance trips in normal starts. This makes LENRK400 well-suited for high inrush motors in pumps, compressors, and conveyors, reducing panel heat and extending drive life.
Yes. LENRK400 is rated for both 250 Vac and 125 Vdc, aligning with common motor control circuits. The dual voltage capability eliminates the need for multiple fuse types in mixed-voltage installations. When combined with Class RK1 and RoHS compliance, it supports consistent protection across industrial drives while maintaining compact form factor for crowded control panels.
LENRK400 carries UL Listed and CSA Certified markings, confirming compliance with North American electrical safety standards. It is RoHS compliant, reducing hazardous substance concerns in assemblies and end products. The fuse also adheres to Class RK1 category, aligning with established motor protection guidelines and simplifying approvals during panel fabrication and system integration.
Using LENRK400 can reduce downtime and maintenance costs by decreasing nuisance trips and extending motor life through reliable protection against faults and inrush. The non-indicating design minimizes wiring complexity, while its 8.63 in length supports easier retrofits in existing enclosures. Across a typical manufacturing line, the result is lower service intervals and improved machine availability.