Eaton DCG4065UWM DC Disconnect - UL Listed 4X
Part Number: DCG4065UWM
Quick Summary
Eaton heavy duty DC disconnect provides safe, reliable DC isolation for solar PV systems. In practice, engineers face maintenance downtime and risk during fault events or routine servicing, so dependable isolation is critical. This unit features UL Listed certification, a NEMA 4X enclosure, and 304 stainless steel construction, delivering corrosion resistance in outdoor environments. With four-pole, non-fusible operation and grounded conductors, it supports PV installations while simplifying compliance, serviceability, and long-term reliability for industrial, electrical protection, and solar projects.
Product Information
Extended Description
DCG4065UWM Eaton: Eaton heavy-duty DC disconnect,400A,Grade 304 stainless steel,Non-fusible,Grounded,In/Out(LC): (1) 750 MCM-1/0 and (1) 600 MCM-#2, In/Out(SR): (2) 750 MCM-1/0,600 Vdc,NEMA 4X,4,Non-fusible,Four-pole,DC photovoltaic applications,Single-throw
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG4065UWM
UPC
786685865775
Product Length/Depth
12.42 in
Product Height
57.47 in
Product Width
24.12 in
Product Weight
125 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
4
Ground
Grounded
Maximum voltage
600 VDC
NEMA rating
NEMA 4X
Protection
Non-fusible
Application
Solar
Main lug wire size
In/Out(LC): (1) 750 kcmil-1/0 and (1) 600 kcmil-#2, In/Out(SR): (2) 750 kcmil-1/0
Number of poles
Four-pole
System voltage
600 VDC per pole
Voltage rating
600 VDC
Series
DC photovoltaic applications
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse configuration
Non-fusible
Switch type
Single-throw Heavy duty safety DC photovoltaic systems
Protection
Non-fusible
High-current four-pole design enables full isolation of all conductors, reducing arc risk and enabling safe maintenance in demanding solar installations. The 400 A rating translates to tangible capacity for mid-to-large photovoltaic arrays, improving performance margins and enabling scalable layouts. Its non-fusible configuration simplifies field maintenance and reduces downtime during routine servicing, while keeping protection straightforward for technicians. The NEMA 4X, 304 stainless steel enclosure delivers exceptional weather and corrosion resistance, making outdoor rooftop and ground-mount PV projects more dependable and lowering total cost of ownership through fewer enclosure-related failures. Compatibility with large main-lug conductors (LC and SR setups) simplifies wiring and minimizes lead times for custom configurations. The UL Listed status reinforces compliance with critical electrical safety standards, and Eaton’s warranty provides confidence across project lifecycles. In solar applications, the DCG4065UWM supports rapid, compliant isolation, enabling safer start-ups and reliable shutdowns in rugged environments.
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FAQs
Install the four-pole, non-fusible DC disconnect in a dry, accessible outdoor or indoor location with a suitable mounting surface. Use In/Out LC terminals for one set of conductors: 750 MCM-1/0 and 600 MCM-#2, and In/Out SR for the second set: two 750 MCM-1/0 conductors. Follow UL Listed guidelines and torque specs for lug connections, ensuring the enclosure remains NEMA 4X rated.
The device provides 400 A amperage rating with a 600 VDC per-pole limit, four poles, and non-fusible protection. It is a grounded, four-puse DC disconnect intended for DC photovoltaic applications. The enclosure is NEMA 4X and made from 304 stainless steel, with UL Listed certification to support compliance in industrial solar installations.
Yes. The UL Listed unit uses a 304 stainless steel NEMA 4X enclosure, designed to resist moisture, dust, and corrosion in outdoor environments. With 600 VDC per pole and 4-pole isolation, it is optimized for rooftop and ground-mount solar PV systems, delivering dependable performance in harsh weather while improving system safety.
The DCG4065UWM is UL Listed and features a NEMA 4X enclosure for robust protection. It carries a one-year warranty from installation or 18 months from shipment, per Eaton policy 25-000, providing value and risk mitigation across project lifecycles.
Key ROI drivers include high current capacity (400 A) with four-pole isolation, preventing partial shutdowns and enabling safe service. The non-fusible design simplifies maintenance, while the 304 stainless enclosure and NEMA 4X rating reduce weather-related failures. Proper mounting, weight handling (125 lb), and correct lug sizing for LC SR configurations further streamline installation and long-term reliability in solar projects.