Eaton DH165NRK DC disconnect - UL Listed
Part Number: DH165NRK
Quick Summary
Eaton DC disconnect DH165NRK provides a high-current, single-pole isolation solution for solar PV and industrial DC systems. Engineers and maintenance teams often struggle with reliable isolation, neutral return paths, and durable operation in outdoor or harsh environments. UL Listed safety certification and a rugged NEMA 3R enclosure help ensure compliance and long service life in demanding installations. With a 400 A rating and 600 VDC capability, it delivers robust performance for solar and grid-tied projects while simplifying installation and ongoing maintenance. The fusible, single-pole design includes a neutral, enabling selective protection and cleaner shutdowns during maintenance. Engineers can rely on one device to cover common conductor ranges (Cu/Al) in compact spaces, reducing panel complexity and total installed cost.
Product Information
Extended Description
DH165NRK Eaton: Eaton DC disconnect, 400 A, NEMA 4X, 304 stainless steel, Class R, Fusible with neutral, Single-pole, Two-wire, Solar disconnect switch, 600 V, (2)#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton DC disconnect
Catalog Number
DH165NRK
UPC
786685384504
Product Length/Depth
11.2 in
Product Height
57.47 in
Product Width
22.66 in
Product Weight
133 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
400 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
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - DH165NRK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 400 A amperage rating with a single circuit path. Business impact: supports heavy solar currents without paralleling devices, enabling streamlined protection coordination and reduced hardware cost. Application: solar PV and medium-scale DC distribution where reliability matters. Feature: Fusible with neutral. Business impact: provides fault isolation and safer shutdowns, helping maintain system integrity during maintenance cycles. Application: DC solar disconnects in outdoor or industrial installations. Feature: NEMA 3R enclosure. Business impact: outdoor durability and weather resistance, lowering corrosion risk and service interruptions. Application: rooftop and exterior equipment housings for PV arrays. Feature: Compatibility with multiple conductor sizes (Cu/Al). Business impact: flexible field wiring reduces inventory needs and speeds setup. Application: 600 VDC DC distribution, solar and energy storage projects. Feature: UL Listed and Class R protection. Business impact: compliance assurance and predictable fault clearing, minimizing compliance risk and downtime. Application: installations requiring formal safety certification. Feature: Compact single-pole, two-wire design. Business impact: simplifies wiring, reduces enclosure footprint, and accelerates installation. Application: simplified integration into existing DC routes in industrial facilities. Industry context: This device fits standard solar and electrical protection workflows, aligning with IEC/UL expectations while delivering practical advantages in real-world deployments.
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FAQs
The DH165NRK supports single-pole, two-wire configurations with conductor ranges including (2) #1/0 to (2) 300 kcmil or (1) #1/0 to (1) 750 kcmil copper or aluminum. This coverage accommodates most common PV array feeders and simplifies field wiring while preserving fault isolation.
The device is rated for 400 A and 600 VDC, designed to safely interrupt and isolate a high-current DC circuit in solar and other DC power applications. These ratings support reliable protection coordination in medium to large DC installations.
Yes. The DH165NRK uses a NEMA 3R enclosure, which is specified for outdoor or semi-exposed environments. This enclosure, along with UL Listed safety certification, helps withstand weather exposure and ensures continued protection in outdoor solar and industrial settings.
The DH165NRK carries UL Listed certification, indicating compliance with recognized safety standards for electrical equipment. While installed in rugged environments, the combination of UL listing and NEMA 3R enclosure provides confidence in safety, reliability, and regulatory alignment for maintenance and inspections.
By consolidating protection into a single 400 A, 600 VDC device with fusible protection and neutral, the DH165NRK reduces hardware footprint, simplifies wiring, and minimizes downtime during maintenance. Its rugged enclosure and certification streamline compliance tasks, resulting in lower lifecycle costs and faster commissioning.