Eaton KLU-1800 fuse – Class L, 200 kAIC at 600 Vac
Part Number: KLU-1800
Quick Summary
The Eaton KLU-1800 fuse provides fast-acting overcurrent protection for large industrial power feeds in switchgear and motor control centers. Engineers often struggle with nuisance trips and downtime when protection choices are undersized or slow to react during fault events. CE marking and RoHS compliance ensure regulatory alignment across EU markets, while the Class L designation defines predictable performance under fault conditions. The fast-acting, current-limiting profile minimizes arc flash energy and protects downstream equipment, enabling safer, more reliable operation. In practice, you gain straightforward bolt-on installation, reduced maintenance risk, and clear documentation that supports project handoff and supplier qualification.
Product Information
Extended Description
KLU-1800 Eaton: Eaton Bussmann Series Class L fuse, KLU, fast-acting, current limiting fuse, 1800 A, bladable fuse, interrupting rating of 200 kA, 600 Vac
Product Name
Eaton Bussmann series KLU fuse
Catalog Number
KLU-1800
UPC
051712178129
Product Length/Depth
3.5 in
Product Height
1.75 in
Product Width
3.5 in
Product Weight
8.3 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
1800 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
Indicating
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KLU Class L fuse data sheet No. 1013
Feature: High interrupt rating of 200 kAIC at 600 Vac provides robust short-circuit protection, reducing damage to feeders and downstream equipment. Business Impact: Limits arc energy and short-circuit damage, improving uptime and reducing spare-part costs. Application: Large feeder circuits in switchgear and power distribution panels benefit from dependable fault isolation. Long-tail keywords: high interrupt rating fuse, 200 kAIC protection, 600 Vac fuses. Feature: 1800 A amperage rating enables protection for high-load processes without nuisance tripping. Business Impact: Allows larger motors and feeders to operate safely, lowering the risk of unnecessary outages. Application: Heavy power-draw equipment in steel, water treatment, and manufacturing facilities. Long-tail keywords: 1800 A current rating fuse, high-current protection fuse, Class L fuse for motors. Feature: Fast response time (5 seconds at 500%) delivers swift fault clearance. Business Impact: Reduces energy dump and equipment stress during faults, extending life of conductors and breakers. Application: Critical power feeds where rapid isolation is essential. Long-tail keywords: fast-acting current-limiting fuse, rapid fault isolation, protective response time. Feature: Bolted blade end x bolted blade end with bolt mounting simplifies installation and panel compatibility. Business Impact: Streamlines retrofit and replacement, minimizes service time and risk during maintenance. Application: Standard Eaton Bussmann series installations and retrofit projects. Long-tail keywords: bolted blade ends fuse, bolt-on fuse installation, Class L protection. Feature: Class L fuse family with CE Marked and RoHS compliant certifications. Business Impact: Ensures regulatory compliance and environmental responsibility across global sites, easing procurement and audit trails. Application: Global manufacturing environments requiring compliant protective devices. Long-tail keywords: CE Marked fuse, RoHS compliant Bussmann fuse, regulatory-compliant protection.
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FAQs
The KLU-1800 uses bolted blade ends with bolt mounting, designed to replace compatible Class L branch-fuse formats in Bussmann-series panels. Verify panel clearance and bus-bar dimensions, ensure mounting hardware is included, and confirm the enclosure supports a 3.5 in length and 3.5 in width. This straightforward bolt-on approach minimizes downtime and ensures consistent protective coordination with upstream devices.
KLU-1800 provides an interrupt rating of 200 kAIC at 600 V, enabling rapid isolation of severe faults with minimal arc energy. The 1800 A amperage rating supports high-load feeder protection, reducing the likelihood of nuisance trips on surge conditions. Together, these specs translate to safer operation, reduced equipment damage, and improved system availability in industrial power distribution.
Yes, the KLU-1800 is CE marked and RoHS compliant. CE marking confirms conformity with EU safety, health, and environmental requirements, while RoHS limits hazardous substances in electrical equipment. For global projects, this simplifies cross-border procurement, harmonizes supplier acceptance criteria, and supports regulatory audits without additional vendor certifications.
The KLU-1800 is ideal for large power feeders, motor-control centers, and high-load distribution panels in industries such as manufacturing, metals processing, and water treatment. Its Class L current-limiting performance and bolted mounting make it suitable for retrofit projects or new installations where reliable protection and uptime are critical.
Investing in the KLU-1800 can yield ROI through reduced downtime, fewer arc-flash incidents, and extended component life due to precise fault isolation. The fuse’s high interrupt rating, fast response, and compliance documentation streamline maintenance planning, simplify spares management, and improve project qualification for regulated environments.