Eaton LENRK500 Edison fuse - Class RK1, 200 kAIC, UL Listed
Part Number: LENRK500
Quick Summary
The Eaton LENRK500 Edison fuse provides high-current motor protection for industrial drives. Engineers often face inrush spikes that trip drives and disrupt production, leading to costly downtime. This device carries CSA Certified and UL Listed certifications, with RoHS compliance supporting environmental and regulatory requirements. With a 500 A rating and 200 kAIC interrupt capability, it enables reliable protection while simplifying panel design and maintenance. Designed for Class RK1 motor protection in standard packaging, it helps minimize downtime and extend equipment life.
Product Information
Extended Description
LENRK500 Eaton: Eaton Edison LENRK fuse, Non-indicating, High in-rush current motor protection, Electrically isolated end caps, 500 A, Class RK1, 200 kAIC, Standard, 1, 250 V, 125 Vdc
Product Name
Eaton Edison LENRK fuse
Catalog Number
LENRK500
UPC
782634538578
Product Length/Depth
10.38 in
Product Height
2.88 in
Product Width
2.88 in
Product Weight
0.001 lb
Warranty
No warranty
Compliances
RoHS Compliant
Certifications
CSA Certified UL Listed
Amperage Rating
500 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
70/30 brass end cap
Feature: High inrush current tolerance designed for motor protection. Business Impact: Reduces nuisance trips and unplanned downtime in demanding industrial drives, increasing line availability and productivity. Application: Suitable for high inrush motor protection in manufacturing lines where reliability is critical. Feature: Electrically isolated end caps with 70/30 brass construction. Business Impact: Safer maintenance and straightforward installation with robust electrical connections, lowering installation time and risk of arcing. Application: Ideal for control panels and motor starter assemblies requiring dependable end-cap integrity. Feature: 200 kAIC interrupt rating and 250 Vac / 125 Vdc voltage capability. Business Impact: Ensures safe quadrants of disconnection during fault events, protecting personnel and equipment in heavy-use facilities. Application: Large motor circuits and variable-frequency drives in process industries. Feature: RoHS compliant and UL Listed with CSA Certification. Business Impact: Streamlines regulatory compliance and procurement through globally recognized standards, reducing time-to-deploy in compliant environments. Application: Industrial environments with strict environmental and safety requirements. Feature: Class RK1 designation with standard packaging for easy replacement. Business Impact: Simplifies panel design and maintenance planning, enabling quicker stocking and replacement cycles. Application: Routine maintenance in OEM and aftermarket service programs.
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FAQs
LENRK500 is designed for standard panel mounting in Class RK1 motor protection schemes. When installing, ensure correct alignment with compatible Bussmann Edison fuse holders, verify 500 A rating against the motor full-load current, and follow local wiring codes. The non-indicating fuse simplifies placement, while the 70/30 brass end caps provide secure, isolated connections for reliable operation in industrial environments.
LENRK500 offers a high 200 kAIC interrupt rating, allowing rapid and safe disconnection during fault events while accommodating inrush currents typical of start-up sequences. This reduces nuisance trips and protects motor windings, drives, and power sources. Its RK1 class design integrates with standard motor protection schemes to balance start-up performance with protection reliability.
Yes. The LENRK500 is UL Listed and CSA Certified, and RoHS compliant, aligning with widely adopted regulatory and environmental standards. This simplifies certification processes for panel builders and OEMs, supports regulatory audits, and reduces integration risk in multi-supplier projects.
Maintenance considerations focus on routine inspection of the fuse’s mounting and end-cap integrity. Since LENRK500 is non-indicating, plan periodic electrical checks and panel walkthroughs to verify continuity and mounting torque. The standard packaging and single-unit quantity simplify stocking and replacement during planned maintenance windows, minimizing downtime and spare-part complexity.
The 70/30 brass end caps provide excellent electrical conductivity and strong mechanical bonding, delivering reliable current paths and reducing contact resistance. Electrically isolated ends minimize arcing risk during installation and maintenance. This design choice improves overall reliability for high-current motor protection in demanding environments.