Eaton KTU-4000 Fuse - Class L, 200 kAIC at 600V
Part Number: KTU-4000
Quick Summary
KTU-4000 fuse by Eaton provides fast-acting overcurrent protection for large electrical distribution panels. Engineers commonly struggle with nuisance trips and insufficient fault energy control in high‑capacity feeders, which can drive downtime and maintenance costs. This device carries CE marking and RoHS compliance, and it is a Class L fuse designed for current-limiting protection, enabling targeted interruption with minimal collateral damage. With bolt-end mounting, ferrule design, and a robust melamine glass tube construction, it streamlines installation while delivering dependable performance in industrial environments, aiding procurement with clear datasheets and catalogs.
Product Information
Extended Description
KTU-4000 Eaton: Eaton Bussmann Series Class L fuse, KTU, fast-acting, current limiting fuse, 4000 A, bladable fuse, interrupting rating of 200kA at 600Vac
Product Name
Eaton Bussmann series KTU fuse
Catalog Number
KTU-4000
UPC
051712613408
EAN
5027590446808
Product Length/Depth
7 in
Product Height
11 in
Product Width
7 in
Product Weight
21 lb
Warranty
Not Applicable
Compliances
CE Marked RoHS Compliant
Amperage Rating
4000 A
Interrupt rating
200 kAIC at 600 Vac
Voltage rating
600 V
Material
Silver-plated end bells Melamine glass tube
Packaging type
Standard
Class
Class L
Connection
Bolted blade end x bolted blade end
Fuse indicator
Non-indicating
Mounting method
Bolt
Special features
Ferrule design
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KTU Class L fuse data sheet No. 1010
Feature: High amperage rating of 4000 A enables protection of large feeders and bus bars. Business Impact: Supports reliable protection for heavy-duty circuits, reducing the need for multiple devices and simplifying panel design. Application: Ideal for main distribution panels, motor control centers, and substations while coordinating with other Bussmann devices. Feature: Interrupt rating of 200 kAIC at 600 Vac provides robust fault-energy control. Business Impact: Minimizes arc energy and downstream damage during faults, improving safety and uptime. Application: Suitable for high-energy industrial systems and feeder protection in switchgear. Feature: Class L, fast-acting current-limiting fuse. Business Impact: Improves selectivity and short-circuit response, protecting upstream equipment and reducing nuisance trips. Application: Branch-circuit protection in dense electrical architectures. Feature: Bolt-end blade connections with bolt mounting. Business Impact: Enables secure, vibration-resistant installations and straightforward field replacement. Application: Retrofit projects and new installations where bolt mounting is standard. Feature: Ferrule design with silver-plated end bells and melamine glass tube. Business Impact: Delivers durable mechanical/thermal performance in rugged environments, lowering maintenance costs. Application: Industrial environments with frequent temperature fluctuations and vibration. Feature: RoHS and CE compliance with documented catalogs and datasheets. Business Impact: Supports global regulatory acceptance and procurement efficiency, reducing compliance risk. Application: Global deployments across EU and other RoHS regions.
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FAQs
The KTU-4000 is rated for 4000 A continuous amperage with a 200 kAIC interrupt rating at 600 V. This combination supports reliable fault clearance for high-energy circuits and protects downstream equipment. For detailed curves, coordination guidance, and installation notes, consult the Bussmann data sheet No. 1010.
Yes. The KTU-4000 uses bolted blade end x bolted blade end connections and is designed for bolt mounting. This configuration provides secure electrical contact, vibration resistance, and straightforward field installation in panelboards and switchgear. When replacing, match end-blade dimensions and torque specifications per the data sheet.
Typical applications include large electrical distribution panels, motor control centers, switchboards, and substations where high-current protection is essential. Its current-limiting Class L characteristics help coordinate with upstream devices, reduce fault energy, and support safer startup sequences while lowering maintenance costs in industrial facilities.
The KTU-4000 is CE marked and RoHS compliant, aligning with European and global regulatory requirements. While it provides robust protection and documented performance, always verify project-specific standards and consult the Bussmann catalogs for complete compliance documentation and application guidelines.
You can access Bussmann Full Line Catalog PDFs and the Bussmann series KTU Class L fuse data sheet No. 1010, along with the RoHS search tool, to confirm electrical characteristics, installation instructions, and safety information. These documents aid procurement, specification, and installation planning across global projects.