Eaton KWS-R-15 Fuse - Class RK1, 200 kAIC, CE
Part Number: KWS-R-15
Quick Summary
KWS-R-15 fuse from Eaton Bussmann is a rugged protective device for photovoltaic systems, inverters, and panelboards. Engineers often struggle to meet high interrupt ratings within compact enclosures while maintaining quick, dependable protection. This device carries CE marking and conforms to Class RK1 standards, offering predictable performance in challenging electrical environments. With a compact 5 inch body and a 600 V rating, it supports efficient protection across solar, commercial, and industrial power layouts while simplifying procurement and field replacement.
Product Information
Extended Description
KWS-R-15 Eaton: Eaton Bussmann series KWS-R fuse, Photovoltaic systems, Inverters, Panelboards, 15 A, Class RK1, Non-indicating, 200 kAIC at 600 Vac, Standard, 600 V
Product Name
Eaton Bussmann series KWS-R fuse
Catalog Number
KWS-R-15
UPC
051712658775
Product Length/Depth
5 in
Product Height
0.81 in
Product Width
0.81 in
Product Weight
0.13 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
15 A
Interrupt rating
200 kAIC at 600 Vac
Voltage rating
600 V
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
KWS-R-15~LIMITRON FAST ACTING FUSE
KWS-R-15~LIMITRON FAST ACTING FUSE
Bussmann series Fuseology
Eaton Specification Sheet - KWS-R-15
Feature: 15 A amperage rating. Business Impact: Provides reliable protection for PV inverters and related circuits without nuisance blowing under normal startup surges. Application: Suitable for PV arrays, inverter feeds, and panelboard subcircuits. Feature: 200 kAIC interrupt rating at 600 Vac. Business Impact: Delivers high fault rating to quickly isolate faults, reducing equipment damage and downtime. Application: Critical in large PV systems, inverter bays, and commercial panelboards. Feature: Class RK1, Non-indicating. Business Impact: Standardized fuse class improves interchangeability across the Bussmann KWS-R family, enabling unified stocking and fast replacement. Application: Service and maintenance in multi-vendor environments. Feature: Compact form factor (5 in length, 0.81 in width and height). Business Impact: Facilitates easy installation in tight electrical enclosures, reducing design constraints and labor time. Application: Enclosed inverter cabinets, compact distribution panels. Feature: 600 V rating. Business Impact: Ensures compatibility across diverse AC/DC circuits in PV and general electrical installations. Application: PV inverters, panelboards, and feeders. Feature: Standard packaging type. Business Impact: Streamlines procurement and inventory management for field installs and OEM assemblies. Application: Service vans, OEM panel builders, and retrofit projects. Feature: Non-indicating fuse. Business Impact: Simplifies visual inspection and reduces indicator-related maintenance in clean-room or restricted spaces. Application: Panelboard protection and control circuits.
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FAQs
The KWS-R-15 is a 15 A, Class RK1 fast-acting fuse with a 5 inch length and 0.81 inch cross section, designed for standard panelboard slots and inverter protection bays. Its 600 V rating and high interrupt capability support reliable circuit protection while fitting common enclosure layouts, reducing redesign effort during installation.
200 kAIC at 600 Vac indicates the fuse can interrupt extremely high fault currents without sustaining damage. For PV systems and inverters, this means rapid fault isolation, minimized equipment stress, and lower risk of cascading failures in large arrays or close-coupled power stages.
Yes. With a 15 A rating, 600 V voltage rating, and 200 kAIC interrupt capability, the KWS-R-15 is well-suited for PV strings, inverter input/output protections, and associated panelboard circuits, providing dependable protection without interfering with normal operation in solar installations.
The KWS-R-15 carries CE marking and conforms to RK1 fuse standards, ensuring compliance with European safety requirements and predictable performance in industrial power distribution. These certifications support regulatory compliance, safer field deployments, and easier vendor interoperability.
Non-indicating design reduces visual maintenance, while its standard packaging and compact form factor simplify replacements and stocking. The strong interrupt rating minimizes downtime during faults, contributing to improved system availability and a lower total cost of ownership in PV, inverter, and panelboard protection schemes.