Eaton DCG2104URM Heavy Duty DC Disconnect - NEMA 3R
Part Number: DCG2104URM
Quick Summary
The Eaton DCG2104URM heavy duty DC disconnect isolates solar DC power for PV systems. This unit addresses a common challenge: delivering reliable, code-compliant isolation in outdoor installations while withstanding harsh weather. With NEC 690 compliance under UL 1741 and UL 98B, it also aligns with critical safety and reliability standards, ensuring protective coordination in solar arrays. The NEMA 3R painted galvanized steel enclosure provides dependable outdoor protection, and the grounded, non-fusible design supports safe operation even in remote or corrosive environments. Designed for 1000 VDC systems, it supports practical array expansion and straightforward maintenance, while offering robust wiring configurations for 300 kcmil-#6 main lugs. In short, it combines safety, durability, and installability to improve project uptime and total cost of ownership.
Product Information
Extended Description
DCG2104URM Eaton: Eaton heavy duty DC disconnect,200A,NEMA 3R,Painted galvanized 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-#14,2,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG2104URM
UPC
786685625348
Product Length/Depth
57.47 in
Product Height
12.43 in
Product Width
24.12 in
Product Weight
60 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
2
Ground
Grounded
Maximum voltage
1000 VDC
NEMA rating
NEMA 3R
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 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Isolation
Isolated return
Switch type
Heavy duty DC photovoltaic systems
Protection
Non-fusible
Feature: 200 A amperage rating with 2 circuits. Business impact: enables handling of main DC feeders for multiple solar strings without upstream hardware changes. Application: PV arrays requiring robust DC isolation in a single enclosure. The design reduces system downtime and simplifies protection coordination across the array. Feature: NEMA 3R painted galvanized steel enclosure. Business impact: outdoor-ready, corrosion-resistant housing that survives wet, dusty outdoor environments, lowering maintenance costs. Application: rooftop and ground-mounted PV installations where exposure to weather is constant. Feature: Grounded, isolation-enabled, non-fusible switch. Business impact: safer operation with removable transfer paths and clear fault segregation, reducing arc-flash risk and maintenance complexity in distributed PV systems. Application: solar power systems requiring clear non-fusible isolation points and isolated return wiring. Feature: Large main lug wiring options (LC SR EG) up to 300 kcmil-#6, enabling flexible, code-compliant conductor sizing. Business impact: minimizes field rewiring when expanding capacity or upgrading feeders; Application: high-current PV wiring scenarios. Feature: System rated for 1000 V DC and 2 circuits. Business impact: supports modern high-voltage PV arrays with compliant insulation and safety margins; Application: utility-scale and commercial PV projects. Feature: Certifications and standards alignment NEC 690 per UL 1741 UL 98B. Business impact: confidence in regulatory compliance and risk mitigation during inspections; Application: projects with strict electrical integrity requirements. Feature: Installation versatility and durable construction. Business impact: faster commissioning, reduced commissioning errors, and lower total cost of ownership. Application: long-term outdoor solar installations with demanding uptime requirements.
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FAQs
Mount the enclosure in a suitable outdoor location, connect 300 kcmil-#6 in LC and out #6, add SR 300 kcmil-#6 in/out, and wire EG conductors as specified. Ensure the unit is grounded and that the system voltage does not exceed 1000 VDC. Follow NEC 690 UL 1741 guidelines for safe, code-compliant isolation.
It is a 200 A, 2‑circuit, non-fusible DC disconnect with a 1000 VDC maximum rating. It uses a grounded, isolated return, with LC SR EG wiring configurations and a NEMA 3R, painted galvanized steel enclosure.
Yes. It features a NEMA 3R enclosure and is designed for outdoor solar applications, with UL 1741 NEC 690 compliance to support code-approved PV system protection and isolation.
Certifications include NEC 690 per UL 1741 and UL 98B, ensuring compliance with safety and protection standards for DC photovoltaic systems.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Support includes standard Eaton policy 25-000 and access to specification sheets and product support resources.