Eaton KWS-R-35 Fuse - Class RK1, 200kAIC @600Vac CE Marked

Part Number: KWS-R-35
KWS-R-35
Manufacturer
Eaton
Part number
KWS-R-35
Category

Quick Summary

The Eaton Bussmann KWS-R-35 fuse protects PV systems and inverters by interrupting fault currents. Engineers often face nuisance trips or undersized protection that slows system commissioning. With CE Marked compliance, Class RK1 protection, and high interrupt ratings—200 kAIC at 600 Vac and 100 kAIC at 600 Vdc—the KWS-R-35 aligns with PV inverter, panelboard, and array protection requirements. Designed for photovoltaic systems and distribution panels, this fuse delivers reliable protection, easier sourcing, and lifecycle cost savings for industrial builders and EPCs.

Product Information

Extended Description

KWS-R-35 Eaton: Eaton Bussmann series KWS-R fuse, Photovoltaic systems, Inverters, Panelboards, 35 A, Class RK1, Non-indicating, 200 kAIC at 600 Vac, 100 kAIC at 600 Vdc, Standard
Product Name
Eaton Bussmann series KWS-R fuse
Catalog Number
KWS-R-35
UPC
051712658812
EAN
5027590446686
Product Length/Depth
0.81 in
Product Height
5.5 in
Product Width
0.81 in
Product Weight
0.33 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
35 A
Interrupt rating
200 kAIC at 600 Vac 100 kAIC at 600 Vdc
Voltage rating
600 Vac, 600 Vdc
Packaging type
Standard
Class
Class RK1
Fuse indicator
Non-indicating
Bussmann series complete full line catalog no. 1007 Bussmann series Fuseology Eaton Specification Sheet - KWS-R-35 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: 35 A amperage rating and RK1 class provide standard industry protection. Business Impact: Standardizes overcurrent protection across panels, reducing mis-sizing risk and simplifying procurement. Application: Ideal for PV inverters, combiner boxes, and distribution panels. Feature: High interrupt rating of 200 kAIC at 600 Vac and 100 kAIC at 600 Vdc. Business Impact: Enables rapid fault interruption in both AC and DC domains, elevating system safety and uptime. Application: Large PV arrays and high-energy inverter interfaces. Feature: 600 Vac / 600 Vdc voltage ratings. Business Impact: Supports cross-domain protection in mixed AC/DC PV systems and panelboards. Application: PV plant feed circuits, grid-tied inverters, and DC link protection. Feature: Non-indicating fuse indicator. Business Impact: Reduces cost and enclosure complexity; external monitoring can be added if needed. Application: Field installations in standard Bussmann series enclosures. Feature: CE Marked and standard packaging. Business Impact: Streamlines compliance and speeds installation with widely available spare parts. Application: OEM panelboards, field upgrades, and EPC projects. Feature: Compact form factor and lightweight design (0.81 in x 0.81 in x 5.5 in; 0.33 lb). Business Impact: Eases stocking, transport, and on-site installation. Application: Retrofit projects and new builds in constrained spaces.

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FAQs

The KWS-R-35 is a Class RK1, 35 A fuse designed for photovoltaic systems, inverters, and panelboards. It uses standard Bussmann series packaging and is non-indicating, CE marked. It supports 600 Vac and 600 Vdc with 200 kAIC and 100 kAIC ratings respectively, and fits common holders and enclosures.
Amperage rating is 35 A; voltage rating is 600 Vac and 600 Vdc; interrupt ratings are 200 kAIC at 600 Vac and 100 kAIC at 600 Vdc. These specifications enable reliable protection for mixed AC/DC PV circuits.
Yes. With a 35 A rating, high interrupt ratings, and CE Marked compliance, it provides reliable protection for PV inverters, array combiner boxes, and distribution panels, while keeping installation straightforward and cost-effective.
The KWS-R-35 carries CE Marking and Class RK1 protection. It ships in standard packaging and uses a non-indicating fuse indicator, aligning with common industrial installation practices.
The non-indicating fuse reduces potential failure points and costs; high interrupt ratings minimize downtime by quickly clearing faults; standard packaging simplifies stocking and field upgrades, delivering long-term savings across PV projects and maintenance cycles.