Eaton DCG3104UWM DC disconnect - NEMA 4X, 1000 VDC
Part Number: DCG3104UWM
Quick Summary
Eaton DCG3104UWM DC disconnect provides rugged, non-fusible DC isolation for 1000 V photovoltaic systems. When wiring solar arrays, maintenance and outdoor exposure make safe, reliable disconnects essential to uptime and safety. This unit features a 304 stainless steel NEMA 4X enclosure and certified protections, including NEC 690 per UL 1741 and UL 98B, ensuring durable indoor/outdoor performance. With grounded operation and versatile main lug configurations, it simplifies code compliance while reducing installation time. For engineers and procurement teams, the DCG3104UWM delivers long-term reliability, easier maintenance, and scalable compatibility for growing solar projects.
Product Information
Extended Description
DCG3104UWM Eaton: Eaton heavy duty DC disconnect,200A,NEMA 4X,Grade 304 stainless steel,Non-fusible,Grounded,LC: In 300 MCM-#6 out 300 MCM-#6. SR: in 300 MCM-#6 out 300 MCM-#6. EG: in #4-#14 AWG out 1/0-#14,3,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG3104UWM
UPC
786685625409
Product Length/Depth
35.38 in
Product Height
11.63 in
Product Width
24.26 in
Product Weight
80 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
NEC 690 per UL 1741 UL 98B
Type
DC disconnect/grounded system
Amperage Rating
200 A
Number of circuits
3
Ground
Grounded
Maximum voltage
1000 VDC
NEMA rating
NEMA 4X
Protection
Non-fusible
Application
Solar
Main lug wire size
LC: In 300 kcmil-#6 out 300 kcmil-#6. SR: in 300 kcmil-#6 out 300 kcmil-#6. EG: in #4-#14 AWG out 1/0-#14
System voltage
1000 VDC
Voltage rating
1000 VDC
Series
DC photovoltaic applications
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse configuration
Non-fusible
Switch type
DC photovoltaic systems Heavy duty
Protection
Non-fusible
Feature → Business Impact → Application: Non-fusible DC disconnect with grounded design reduces fault propagation and simplifies maintenance workflows in PV systems, delivering safer isolation and lower service impact on daily operations. This translates to improved uptime for commercial rooftop installations and safer commissioning of new solar arrays. Feature → NEMA 4X enclosure and 304 stainless steel construction provides outdoor-rated durability and corrosion resistance, enabling wash-downs and harsh environment operation without enclosure degradation. This supports rooftop and exposed-site solar projects with reduced enclosure replacement costs. Feature → 200 A amperage rating and 3 circuits support large-scale solar arrays, minimizing the number of control devices and simplifying wiring runs, which lowers materials and installation time for utility-scale or multibank PV deployments. Feature → 1000 VDC system voltage and defined main lug sizes (LC, SR, EG) enable flexible, scalable wiring configurations for evolving solar installations, enhancing procurement planning and field adaptability. Feature → NEC 690 per UL 1741 and UL 98B certifications ensure code compliance and safety validation, reducing risk during inspections and speeding project approvals. Feature → 304 stainless steel enclosure with NEMA 4X rating offers robust protection against corrosion and washdowns, which translates to longer service life and lower total cost of ownership for solar arrays in coastal or industrial environments. Feature → Heavy-duty DC photovoltaic switch type and non-fusible protection streamline maintenance and fault isolation, reducing downtime and enabling faster incident resolution in critical solar applications. Feature → Comprehensive compatibility with main lug wire sizes in LC, SR, and EG configurations facilitates seamless integration with existing electrical rooms and reduced field termination complexity for installers. Feature → Eaton warranty and support policy provide assurance and predictable service cycles, helping procurement teams justify investment and plan for ongoing maintenance with reduced risk.
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FAQs
The DCG3104UWM is designed for wall or cabinet mounting with its NEMA 4X, 304 stainless steel enclosure. Ensure a clean, dry mounting surface, allow for proper clearance for wiring, and follow local code requirements for PV DC disconnect installations. Use the LC, SR, or EG main lug configurations as specified and route conductors to minimize bending and thermal stress. The unit’s 35.38 in length, 24.26 in width, and 11.63 in height should be accounted for in layout and service access planning.
Main lug sizes support LC: In 300 kcmil-#6 out 300 kcmil-#6; SR: in 300 kcmil-#6 out 300 kcmil-#6; EG: in #4-#14 AWG out 1/0-#14. This enables large-diameter feeder conductors for low-voltage DC in PV strings and smaller field wiring for control circuits, reducing the need for additional terminal blocks and simplifying field termination.
Yes. It features a NEMA 4X enclosure and 304 stainless steel construction, designed for outdoor exposure, washdowns, and corrosive environments. The 1000 VDC rating and grounding support safe rooftop operation, while UL 1741 and UL 98B certifications help ensure compliance with solar-specific installation standards.
The unit complies with NEC 690 per UL 1741 and UL 98B, and is enclosed in a NEMA 4X, 304 stainless steel housing. These certifications support safe, code-compliant operation in solar PV installations and provide confidence during inspections and audits.
Eaton offers a one-year warranty from installation or eighteen months from shipment, whichever occurs first, under policy 25-000. This coverage supports routine maintenance, parts replacement, and access to Eaton technical support for field issues and troubleshooting, helping reduce lifecycle risk and optimize return on investment.