Eaton DCG4065URM DC Disconnect - UL Listed, 600 VDC, 4-Pole
Part Number: DCG4065URM
Quick Summary
The Eaton DCG4065URM DC disconnect is a rugged four-pole switch designed for solar PV DC circuits. Engineers often face limited space, outdoor exposure, and downtime when isolating PV strings; this unit’s NEMA 3R enclosure and painted galvanized steel construction address those challenges. UL Listed certification and the NEMA 3R rating provide compliance and outdoor reliability, while the non-fusible, grounded design supports safe operation in demanding environments. With straightforward installation and long-term serviceability in mind, this DC disconnect helps minimize maintenance cycles and maximize system uptime for commercial and utility-scale solar projects. For professionals seeking robust safety, easy assembly, and predictable performance, the DCG4065URM delivers tangible business value.
Product Information
Extended Description
DCG4065URM Eaton: Eaton heavy-duty DC disconnect,400A,Painted galvanized 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 3R,4,Non-fusible,Four-pole,DC photovoltaic applications,Single-throw
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG4065URM
UPC
786685865737
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 3R
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 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Switch type
Heavy duty safety Single-throw DC photovoltaic systems
Protection
Non-fusible
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - DCG4065URM
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The 400 A amperage rating ensures safe isolation for medium-to-large PV arrays, reducing the need for frequent upgrades and enabling a compact electrical footprint in tight spaces such as rooftop or ground-mounted PV installations. This directly translates to lower upfront wiring complexity and reduced labor costs during commissioning. Feature → Business Impact → Application: Four-pole design with 600 VDC operation provides full-phase isolation across all conductors, supporting reliable string management and safer simultaneous disconnections in demanding solar systems. It is ideal for field-deployed PV networks where quick, reliable shutoff is essential to protect personnel and equipment. Feature → Business Impact → Application: Non-fusible protection and grounded configuration minimize arcing risk and simplify fault analysis, improving safety margins and maintenance planning in harsh outdoor environments. Feature → Business Impact → Application: NEMA 3R outdoor enclosure and painted galvanized steel construction deliver weather resistance and corrosion protection, reducing enclosure maintenance and extending service life in exposure-prone installations. Feature → Business Impact → Application: In/Out lug configurations (LC SR) support large conductor sizes (750 MCM to 1/0, 600 MCM to #2) enabling direct, secure terminations and reducing field splicing, which accelerates installation in solar DC channels. Feature → Business Impact → Application: UL Listed certification and rugged build provide compliance confidence for utility-grade projects, streamlining procurement, audits, and warranty fulfillment. The combination of these features fosters improved uptime, safer operations, and a lower total cost of ownership for solar DC distribution systems.
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FAQs
For outdoor PV installations, mount the DCG4065URM on a stable, weather-protected surface with proper clearance for service access. Utilize the four-pole design to isolate all PV DC conductors, ensure grounded grounding connections, and follow local codes for outdoor electrical enclosures. The NEMA 3R rating supports outdoor exposure, but routine inspection of the painted galvanized steel enclosure is recommended to maintain corrosion resistance.
The unit is rated for 400 A and 600 VDC with four poles. Main lug sizes include In/Out LC: (1) 750 kcmil-1/0 and (1) 600 kcmil-#2, and In/Out SR: (2) 750 kcmil-1/0. These large conductor allowances enable direct terminations for sizeable PV strings and minimize field splicing, improving reliability and reducing installation time.
Yes. The four-pole, non-fusible, grounded design supports full-channel isolation for PV networks, and the NEMA 3R enclosure protects against rain, dust, and corrosion. Its heavy-duty steel construction is ideal for outdoor solar arrays, warehouse- or roof-mounted systems, delivering safe operation across all four conductors.
The DCG4065URM is UL Listed and features a NEMA 3R enclosure rating, confirming suitability for outdoor, weather-exposed installations and compliance with safety standards for DC disconnects in solar applications.
Eaton offers a one-year warranty from the date of installation or 18 months from shipment, whichever comes first. This policy supports ongoing performance expectations and helps secure long-term maintenance planning for solar DC distributions.