Eaton DH165NDK DC disconnect 400A - UL Listed, 600 VDC
Part Number: DH165NDK
Quick Summary
Eaton DC disconnect DH165NDK provides safe isolation for 400 A DC solar and storage circuits. In busy projects, bulky or noncompliant enclosures slow commissioning and complicate safety compliance across field installations. UL Listed certification and rugged protection in a NEMA 12/3R enclosure provide reliable performance in indoor and outdoor environments. Designed for single-pole, fusible with neutral configurations at 600 VDC, this solution streamlines installation, reduces downtime, and supports scalable solar or energy-storage systems. Its compact 11.16 in depth and 22.66 in width fit standard electrical rooms without compromising usability. Engineers benefit from clear cataloging, compatibility with 600 VDC networks, and a robust one-year warranty that minimizes lifecycle costs.
Product Information
Extended Description
DH165NDK Eaton: Eaton DC disconnect, 400 A, NEMA 3R, Painted galvanized 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 Al
Product Name
Eaton DC disconnect
Catalog Number
DH165NDK
UPC
786685384528
Product Length/Depth
11.16 in
Product Height
44.31 in
Product Width
22.66 in
Product Weight
118 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 12/3R
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 - DH165NDK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: High-current DC disconnect with integrated neutral delivers 400 A, single-pole operation for direct connection to solar PV arrays and energy storage systems. This topology reduces device count and simplifies wiring, speeding up field installations and reducing panel footprint. The included neutral support also eases grounding and fault tracing during commissioning. Feature: Rugged painted galvanized steel enclosure rated NEMA 12/3R provides durable protection against dust, moisture, and corrosion in both indoor and outdoor environments. This protection translates to lower maintenance, fewer field failures, and longer service life in harsh industrial sites. It also helps meet installation standards in mixed-use facilities without additional aftermarket enclosures. Feature: Fusible protection with neutral and 600 VDC rating enables reliable fault isolation in grounded DC circuits. This design reduces arc flash exposure during disconnection and supports quick de-energization during maintenance. Applications include solar disconnect switches and DC distribution in commercial, industrial, and utility-scale installations. Feature: UL Listed certification ensures compliance with safety and performance expectations for electrical protection and control equipment. The product’s NEMA ratings of 12/3R broaden its acceptance in regulated projects and simplify procurement. This combination supports faster project approvals and smoother interconnection with utility standards. Feature: Physical footprint and weight—11.16 in depth, 22.66 in width, 44.31 in height, and 118 lb—help planners model space and mounting requirements. The predictable dimensions streamline panel design, door clearances, and service access in equipment rooms or outdoor enclosures. It integrates with standard solar disconnect switch configurations with minimal customization. Feature: Warranty policy provides one year from installation or 18 months from shipment, adding business value through predictable support windows. The availability of Eaton’s specification sheets and catalog resources aids procurement, while documentation like the 600 VDC DC disconnects for solar PV installations PDF supports quick design decisions.
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FAQs
The DH165NDK supports a single-pole, two-wire configuration with fusible protection and a neutral. It accommodates conductor sizes including (2) #1/0 to (2) 300 kcmil or (1) #1/0 to (1) 750 kcmil aluminum, enabling direct connection to high-current solar arrays and energy-storage systems while maintaining a grounded neutral scheme.
This model is rated for 400 A with a maximum voltage of 600 VDC. It is designed for fusible protection in a grounded DC circuit and supports a single circuit per enclosure, making it suitable for centralized DC disconnect needs in solar and storage installations.
Yes. It is a dedicated solar DC disconnect switch option with fusible protection, intended for 600 VDC solar and energy-storage applications. Its single-pole, neutral-enabled design and UL Listed status help meet interconnection standards and simplify on-site safety procedures during maintenance and commissioning.
The DH165NDK is UL Listed and housed in a painted galvanized steel enclosure rated NEMA 12/3R, suitable for indoor and outdoor environments. These ratings support compliance with safety standards and facilitate procurement for regulated solar and industrial installations.
Eaton provides a warranty of one year from installation or eighteen months from shipment. Comprehensive documentation includes specification sheets, catalogs, and installation resources such as Eaton’s DH165NDK datasheet and related materials to aid design decisions and procurement.