Eaton KTS-R-400 Fuse - Class RK1, 600V, 400A 200kAIC
Part Number: KTS-R-400
Quick Summary
The Eaton KTS-R-400 fuse provides fast-acting protection for 600 V industrial power circuits. In demanding environments, outages from short circuits can halt production, so reliable fusing is essential. CE marked and built to Class RK1 standards, this device offers a robust 200 kAIC interrupt rating to safeguard switchgear and feeders. By combining a 400 A amperage rating with a compact footprint, it delivers dependable protection while simplifying procurement and installation across global plants. This makes it a practical choice for panel builders, electrical distributors, and maintenance teams seeking both performance and compliance in one component.
Product Information
Extended Description
KTS-R-400 Eaton: Eaton Bussmann Series Class RK1 fuse, KTS-R, fast-acting, current limiting fuse, 400 A, rejection style fuse, interrupting rating of 200 kA at 600 Vac
Product Name
Eaton Bussmann series KTS-R fuse
Catalog Number
KTS-R-400
UPC
051712417259
Product Length/Depth
11.63 in
Product Height
2 in
Product Width
2 in
Product Weight
2.4 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
400 A
Interrupt rating
200 kAIC at 600 Vac
Voltage rating
600 V
Material
Melamine glass tube
Number of elements
1
Packaging type
Standard
Class
Class RK1
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Special features
Knife blade
Bussmann Full Line Catalog
Bussmann Full Line Catalog
RoHS Search Tool
Bussmann series Fuseology
Bussmann series KTS-R 600 V Class RK1 fuse data sheet no. 1044
Feature: Fast-acting, current-limiting design for 400 A applications → Business Impact: Minimizes fault energy and downstream damage, enhancing equipment uptime and safety in high‑fault scenarios; Application: motor feeders and power distribution panels in manufacturing facilities. Feature: Rejection style, blade end x blade end connections → Business Impact: Reduces incorrect installations and ensures reliable alignment in standard Bussmann holder configurations; Application: retrofit projects and new build panels. Feature: High interruption rating of 200 kAIC at 600 VAC → Business Impact: Withstands genuine fault events in bus ducts and switchgear, lowering the risk of collateral damage; Application: large drives and critical feeders. Feature: Compact 11.63 in length, 2 in width, 2.4 lb weight, melamine glass tube housing → Business Impact: Easy integration into tight enclosures and durable service life in harsh environments; Application: control cabinets and compact power centers. Feature: CE marked and Class RK1 compliant → Business Impact: Smoother regulatory clearance and standardized protection across European and global sites; Application: multi-site deployments and global supply chains. Feature: Non-indicating fuse indicator → Business Impact: Encourages deliberate monitoring or external status indication for reliability in maintenance programs; Application: panel boards with centralized diagnostic schemes.
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FAQs
The KTS-R-400 is intended for 600 V power circuits, including motor feeders, switchgear, and distribution panels. Its 400 A rating and 200 kAIC interrupt capability make it suitable for protecting feeders in manufacturing lines, process equipment, and control panel assemblies while maintaining compliance with RK1 class standards.
Install the fuse in standard Bussmann or compatible blade-end fuse holders, ensuring correct orientation and seating to prevent arcing. The edge-to-edge blade design supports reliable contact, while the current-limiting action protects downstream components during fault events.
Key specs include 400 A amperage rating, 600 V voltage rating, and a 200 kAIC interrupt rating at 600 VAC. It features a single element in a melamine glass tube, with Class RK1 designation and a non-indicating fuse indicator, designed for use in robust industrial environments.
Yes, the KTS-R-400 is CE marked, indicating compliance with European safety requirements. This helps streamline regulatory approvals for European installations and supports multi-site deployments where EU standards apply.
Since the fuse is non-indicating, you’ll rely on external monitoring to detect a blown fuse. Plan for periodic inspection of fuse holders and panels, and maintain an inventory of spare KTS-R-400 units to minimize downtime. The rugged melamine glass tube supports durable operation in industrial environments.