Eaton KWS-R-30 Fuse - Class RK1, 600 Vac/dc 100/200 kAIC
Part Number: KWS-R-30
Quick Summary
The Eaton KWS-R-30 fuse provides reliable overcurrent protection for photovoltaic systems and electrical panels. Engineers often struggle to select fuses that survive PV surges without nuisance trips while keeping installation simple in tight enclosures. This device combines CE marking, Class RK1 coordination, and high interrupt ratings of 100 kAIC at 600 Vdc and 200 kAIC at 600 Vac for robust, compliant protection. With blade-end connections and a compact 5 in long form factor, it integrates smoothly into inverters, panelboards, and PV combiner boxes, delivering reliability and a lower total cost of ownership.
Product Information
Extended Description
KWS-R-30 Eaton: Eaton Bussmann series KWS-R fuse, Photovoltaic systems, Inverters, Panelboards, 30 A, Class RK1, Non-indicating, Blade end x blade end, 100 kAIC at 600 Vdc, 200 kAIC at 600 Vac, Standard
Product Name
Eaton Bussmann series KWS-R fuse
Catalog Number
KWS-R-30
UPC
051712658805
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
30 A
Interrupt rating
100 kAIC at 600 Vdc 200 kAIC at 600 Vac
Voltage rating
600 Vac, 600 Vdc
Packaging type
Standard
Class
Class RK1
Connection
Blade end x blade end
Fuse indicator
Non-indicating
Bussmann series complete full line catalog no. 1007
Bussmann series Fuseology
Eaton Specification Sheet - KWS-R-30
Bussmann series 250Vac/dc KWN-R and 600Vac/dc KWS-R Data Sheet No. 10413
Bussmann series 250Vac/dc KWN-R and 600Vac/dc KWS-R Data Sheet No. 10413
Datasheet - FNQ-30
Feature: High interrupt rating provides aggressive fault clearing while protecting connected equipment. Business impact: Reduces arc energy and thermal stress on PV inverters and panelboards, improving system uptime and longevity. Application: Ideal for photovoltaic systems, inverters, and DC/AC distribution where 100 kAIC at 600 Vdc and 200 kAIC at 600 Vac are required. Feature: Class RK1, non-indicating fuse link simplifies maintenance cycles. Business impact: Fewer visual checks are needed and replacement is straightforward, lowering maintenance labor costs. Application: Fielded in tight electrical cabinets and standard Bussmann fuse blocks where easy swap-outs matter. Feature: Blade end x blade end connections support quick installation. Business impact: Enables tool-free replacement in compact enclosures, reducing downtime during routine service. Application: Common in inverter racks and panelboard assemblies. Feature: Compact, standard packaging (5 in length, 0.81 in width/height) with light weight (0.13 lb). Business impact: Space-efficient installation and easy stock management for procurement teams. Application: Suitable for dense electrical layouts and service-friendly spares planning.
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FAQs
Yes. The KWS-R-30 uses blade end x blade end connections and a compact 5 in length, designed for standard Bussmann fuse blocks and common PV inverters. Its 30 A rating and RK1 class enable straightforward replacement in tight enclosures, with quick identification of the protection point during maintenance.
The fuse is rated 30 A with voltage ratings of 600 Vac and 600 Vdc. It delivers interrupt ratings of 100 kAIC at 600 Vdc and 200 kAIC at 600 Vac, enabling robust protection for both DC PV circuits and AC distribution networks in a single device.
Yes. It is specifically suitable for PV systems, inverters, and panelboards. The Class RK1 rating, CE marking, and non-indicating design support reliable protection with simple maintenance in solar installations and related electrical distributions.
KWS-R-30 is CE marked and classified as Class RK1. These attributes align with European regulatory expectations and common fuse-coordination standards, helping ensure compliant protection coordination across PV and distribution circuitry.
The fuse reduces downtime through robust overcurrent protection, minimizes maintenance labor with a non-indicating design, and accelerates replacement thanks to blade-end terminals. Its high interrupt ratings protect critical PV inverters and panelboards, lowering repair costs and extending equipment life in solar installations.