Eaton LESRK125 Fuse - UL Listed, CSA Certified
Part Number: LESRK125
Quick Summary
Eaton Edison LESRK fuse is a high-current motor protection device designed for industrial drives and pumping systems. Engineers often contend with nuisance tripping during inrush, leading to unplanned downtime and elevated maintenance costs. UL Listed and CSA Certified, the LESRK125 carries RK1 class protection for reliable performance in 125 A circuits up to 600 V. Its non-indicating design and electrically isolated end caps simplify installation and reduce field injuries, while meeting global safety standards. In electrical protection and circuit control applications, this fuse helps OEMs and maintenance teams standardize spare parts and optimize uptime across critical motor loads.
Product Information
Extended Description
LESRK125 Eaton: Eaton Edison LESRK fuse, Non-indicating, High in-rush current motor protection, Electrically isolated end caps, 125 A, Class RK1, 200 kAIC, Standard, 1, 600 V
Product Name
Eaton Edison LESRK fuse
Catalog Number
LESRK125
UPC
782634548478
Product Length/Depth
9.63 in
Product Height
1.11 in
Product Width
1.11 in
Product Weight
1.1 lb
Warranty
No warranty
Compliances
Not Applicable
Certifications
UL Listed CSA Certified
Amperage Rating
125 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 interrupt rating of 200 kAIC provides robust fault isolation, preserving downstream drives and switchgear from fault currents. The business impact is reduced downtime and lower repair costs in facilities with multiple motors and varying load profiles. In motor circuits up to 600 V, LESRK125 supports reliable protection for drives, conveyors, and pumps used in manufacturing and process industries. The 125 A rating ensures protection aligns with medium-size motors, enabling precise coordination with existing protection schemes and minimizing nuisance trips during normal startup. The non-indicating design reduces maintenance overhead and simplifies routine cabinet checks. Electrically isolated end caps enhance safe handling during installation or replacement in control panels and motor control centers. UL Listed and CSA Certified provide regulatory assurance, while RK1 compatibility ensures seamless integration with standard RK1 protection schemes. The compact form factor (9.63 in L x 1.11 in W x 1.11 in H) and 1.1 lb weight support efficient space planning and easy inventory management for repair or OEM stocking.
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FAQs
LESRK125 provides a 125 A protection level with a 200 kAIC interrupt rating, enabling quick isolation of fault conditions while tolerating startup inrush in 600 V motor circuits. Its RK1 class design ensures compatibility with standard motor protection schemes, reducing miscoordination and downtime during start-up sequences in manufacturing and process environments.
LESRK125 is UL Listed and CSA Certified, confirming adherence to recognized safety and performance standards for electrical protection devices. These certifications help ensure compliance with electrical codes, simplify supplier qualification, and provide buyers with confidence in long-term reliability and safety within industrial motor circuits.
The fuse measures 9.63 inches in length and 1.11 inches in both width and height, with an approximate weight of 1.1 pounds. It is shipped in standard packaging and is sold as a single unit per package. These dimensions support straightforward installation in common control cabinets and RK1 protection assemblies.
LESRK125 is suited for industrial motor protection in 600 V systems where high inrush currents are expected, such as pumps, conveyors, fans, and other drive-equipped equipment. Its 200 kAIC interrupt rating and RK1 class designation make it a robust choice for protecting medium-size motors while enabling reliable coordination with upstream protective devices.
Use in RK1-class protection schemes with standard fusing practices. The fuse features electrically isolated end caps for safe handling during insertion and removal, and a non-indicating design reduces routine status checks. Confirm compatibility with existing RK1 holders or panels and ensure the circuit operates within 125 A at 600 V to maintain proper protection coordination.