Eaton KLU-800 Fuse - Class L, 800 A, 200 kAIC at 600 Vac
Part Number: KLU-800
Quick Summary
The Eaton KLU-800 fuse provides fast-acting Class L protection for industrial power panels. Unplanned downtime and nuisance trips can erode reliability and spike maintenance costs, making robust protection essential. This device is CE marked and RoHS compliant, with Class L protection tailored for 600 V systems and current-limiting performance. With an 800 A rating and a 200 kAIC interrupt capability, it safeguards feeders and motor control centers against short circuits. Designed as a bladable, bolted blade end fuse, it supports secure bolt-on installation in demanding environments. The combination of high performance, reliable protection, and straightforward installation delivers tangible business value through reduced downtime and longer equipment life.
Product Information
Extended Description
KLU-800 Eaton: Eaton Bussmann Series Class L fuse, KLU, fast-acting, current limiting fuse, 800 A, bladable fuse, interrupting rating of 200 kA, 600 Vac
Product Name
Eaton Bussmann series KLU fuse
Catalog Number
KLU-800
UPC
051712135054
Product Length/Depth
8.63 in
Product Height
2.5 in
Product Width
2.5 in
Product Weight
3.75 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
800 A
Interrupt rating
200 kAIC at 600 Vac
Response time
5 sec at 500%
Voltage rating
600 V
Packaging type
Standard
Class
Class L
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Mounting method
Bolt
Quantity
1
Special features
Non-indicating
Low Voltage Branch Circuit Fuse Chapter
Low Voltage Branch Circuit Fuse Chapter
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KLU Class L fuse data sheet No. 1013
Feature: 800 A amperage rating and 600 V voltage rating provide strong fleet protection for mid-size industrial circuits. Business Impact: Limits fault energy to protect conductors and components, reducing downstream damage and maintenance costs. Application: Use in feeders, MCCs, and power distribution panels that require reliable current-limiting at medium voltage. Feature: Class L fast-acting, current-limiting design minimizes arc flash energy during faults. Business Impact: Shortens fault duration, lowers insulation stress, and improves electrical safety compliance. Application: Ideal for motor drives, process controls, and automation panels where rapid clearing is critical. Feature: Bolted blade end to bolted blade end connection supports secure, vibration-resistant mounting. Business Impact: Ensures consistent electrical contact under dynamic industrial conditions, reducing nuisance trips. Application: Bolted installations in harsh environments and switchgear assemblies. Feature: Non-indicating fuse with standard packaging type and bolt mounting. Business Impact: Simplifies stock management and replacement workflows while maintaining straightforward integration. Application: Panel builders prioritizing common form factors and predictable maintenance cycles. Feature: Compliance with CE marking and RoHS, plus a high interrupt rating. Business Impact: Eases regulatory alignment and procurement across global facilities, offering peace of mind for compliance audits. Application: Global manufacturing sites with stringent regulatory requirements and supply chains. Industry context: The KLU-800 aligns with industry practice for protective fusing in 600 V systems, integrating seamlessly with common Bussmann-KLU data sheets and Eaton catalogs. Real-world installations report meaningful uptime improvements when used in accordance with the Low Voltage Branch Circuit Fuse guidance.
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FAQs
The KLU-800 uses bolted blade end connections and bolt mounting, requiring a compatible panel cutout and secure hardware. With a length of 8.63 inches and a width of 2.5 inches, ensure the enclosure provides adequate clearance and ventilation. Use standard packaging and follow Eaton installation guidelines to maintain current-limiting performance and safe operation.
The KLU-800 is an 800 A Class L fuse with a 600 V rating and a 200 kAIC interrupt rating, designed to rapidly interrupt faults. Its 5 second response time at 500% overcurrent demonstrates effective current limiting, reducing arc energy and protecting conductors. This makes it suitable for feeders and MCCs in demanding industrial environments.
Yes. The KLU-800 is purpose-built for Class L, fast-acting protection in 600 V systems, including motor control centers and power distribution panels. Its current-limiting capability helps minimize fault energy in demanding machinery, supporting reliable operation and easier coordination with upstream protection devices.
The KLU-800 is CE marked and RoHS compliant, aligning with European and global regulatory requirements. These certifications support regulatory acceptance, supplier qualification, and safer, standards-compliant installations across international facilities.
Expect reduced downtime due to faster fault clearance, lower maintenance costs from diminished arc damage, and longer component life from controlled fault energy. The KLU-800’s high interrupt rating and robust construction also translate to fewer replacements and easier maintenance planning in high-demand automation environments.