Eaton DH164NRK DC disconnect - 200 A, 600 VDC, UL Listed
Part Number: DH164NRK
Quick Summary
Eaton DC disconnect isolates DC power for solar and industrial applications, providing safe, reliable circuit isolation up to 200 A. Engineers often struggle with bulky PV disconnects that complicate mounting, wiring, and maintenance in harsh environments. UL Listed protection with a NEMA-rated enclosure offers outdoor-ready reliability and regulatory compliance, while the 600 VDC rating supports modern solar and DC distribution needs. This solution also leverages a fusible with neutral design to safeguard circuits, reduce fault exposure, and simplify system design. By combining robust protection with straightforward installation, it delivers reduced risk, faster commissioning, and lower lifecycle costs for engineering teams working on DC power systems.
Product Information
Extended Description
DH164NRK Eaton: Eaton DC disconnect, 200 A, NEMA 4X, 304 stainless steel, Class R, Fusible with neutral, Single-pole, Two-wire, Solar disconnect switch, 600 V, #6-300 kcmil Cu/Al
Product Name
Eaton DC disconnect
Catalog Number
DH164NRK
UPC
786685375885
Product Length/Depth
11.63 in
Product Height
35.38 in
Product Width
15.5 in
Product Weight
56 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Certifications
UL Listed
Type
DC disconnect/grounded system
Amperage Rating
200 A
Number of circuits
1
Protection
Fusible
Voltage rating
600 VDC
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Protection
Fusible
DC disconnects for 600VDC solar photovoltaic installations (single circuit)
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Double Up on Safety
Double Up on Safety
Eaton Specification Sheet - DH164NRK
Feature: 200 A fusible DC disconnect with neutral. Business Impact: Provides dependable overcurrent protection and a built-in neutral path, simplifying fault isolation and improving safety margins. Application: Solar PV arrays and industrial DC feeders where single-point isolation is required. Feature: Single-pole, two-wire configuration. Business Impact: Streamlines wiring and minimizes misconnections, cutting installation time and labor costs. Application: Compact DC isolation points in control panels and outdoor cabinets. Feature: NEMA-rated enclosure (3R) with durable construction. Business Impact: Delivers reliable protection against dust, rain, and corrosion in outdoor or harsh environments, reducing maintenance cycles. Application: Outdoor switchgear, photovoltaic installations, and remote sites. Feature: 600 VDC voltage rating and 200 A current rating. Business Impact: Supports high-power DC systems while maintaining safe switching and clear labeling, enabling scalable solar and industrial power distribution. Application: Utility-scale and commercial PV inverters, battery storage interfaces, and DC buses. Feature: Cu/Al termination from #6 to 300 kcmil. Business Impact: Enables flexible conductor sizing for feeders and bus connections, reducing inventory and design constraints. Application: Large-diameter DC feeders, main disconnect points, and cross-site DC distribution. Feature: UL Listed with documented specifications and Eaton support. Business Impact: Improves compliance, procurement confidence, and access to service resources, accelerating design reviews. Application: Engineering design work, compliance testing, and maintenance planning.
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FAQs
The DH164NRK accepts Cu or Al conductors in the range from #6 to 300 kcmil. This wide termination range supports large DC feeders and PV string connections, reducing the need for additional terminations or adapters. Ensure proper torque at the fuse holder and terminal blocks to maintain secure, low-resistance connections in outdoor or damp environments.
Yes. The unit is designed for harsh environments with UL Listing and a robust enclosure. While specifications indicate a NEMA rating of 3R, it is commonly used in outdoor solar applications and other DC distribution points. Install in accordance with local codes, provide appropriate mounting, and use proper weatherproof gasketing and conduits to maintain performance.
The DH164NRK is UL Listed, and features a fusible protection scheme with neutral. It is built in a NEMA-rated enclosure suitable for indoor or outdoor use depending on installation. The combination of UL Listing and enclosure rating supports safety compliance for industrial and solar DC systems and simplifies procurement documentation.
By providing a compact, single-pole disconnect with a wide conductor range and a reliable 600 VDC rating, the DH164NRK reduces wiring complexity, speeds up installation, and lowers commissioning risk. The UL listing and documented specifications streamline approvals, while its robust enclosure reduces maintenance and downtime in outdoor DC distributions, delivering measurable lifecycle cost savings.
Eaton provides multiple downloads for DH164NRK, including a dedicated specification sheet, catalogs for switching devices, and solar disconnect brochures. In addition, there are videos on safety and two YouTube resources. Use these materials to verify electrical characteristics, plan wiring schemes, and ensure compliance with installation practices in your specific application.