Eaton DCG1104FRM DC Disconnect - Heavy Duty, NEMA 3R
Part Number: DCG1104FRM
Quick Summary
Eaton heavy duty DC disconnect provides a robust 200 A switch for solar PV systems and DC power distribution. Field installers often battle weather exposure, complex wiring, and uncertain isolation; this unit addresses those pain points with a NEMA 3R enclosure, grounded design, and fusible protection for clear, code-compliant operation. It carries NEC 690 per UL 1741 and UL 98B certifications, reinforcing safety and reliability in demanding environments. With a 1000 VDC system rating and compact footprint, it supports scalable solar installations while reducing maintenance downtime and simplifying procurement through compatible Eaton documentation and dimension data. This combination of performance and convenience translates into lower total cost of ownership over the system life cycle.
Product Information
Extended Description
DCG1104FRM Eaton: Eaton heavy duty DC disconnect,200A,NEMA 3R,Painted galvanized steel,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-#14,1,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG1104FRM
UPC
786685625423
Product Length/Depth
37.5 in
Product Height
11.5 in
Product Width
19 in
Product Weight
45 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
Catalog Notes
Not all configurations for ampere rating and number of circuits are available. All circuit configurations can be found in the product dimension tables.
Type
DC disconnect/grounded system
Amperage Rating
200 A
Number of circuits
1
Ground
Grounded
Maximum voltage
1000 VDC
NEMA rating
NEMA 3R
Protection
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
Fusible
Isolation
Isolated return
Switch type
Heavy duty DC photovoltaic systems
Protection
Fusible
Feature 200 A amperage rating with fusible protection maps directly to a safer, code-compliant PV DC distribution, reducing thermal stress and potential arc-flash exposure while enabling straightforward upstream protection. Business Impact Improved system reliability and reduced maintenance costs in solar installations, with predictable fuse coordination and faster service recovery. Application Ideal for single-string or centralized DC PV applications where dependable isolation is critical. Feature NEMA 3R weather-resistant enclosure with painted galvanized steel ensures outdoor durability and corrosion resistance, delivering extended service life in harsh environments. Business Impact Lower total cost of ownership by minimizing enclosure maintenance and corrosion-related downtime. Application Outdoor racking, rooftop arrays, and ground-mounted PV systems benefit from protected, code-ready installation. Feature Grounded, isolated return and isolated main circuits support safe, compliant DC energy routing, improving fault detection and protection coordination. Business Impact Enhanced safety and easier commissioning, with clear electrical separation that supports rapid test and inspection. Application Solar DC power distribution cabinets and service panels. Feature Main lug configurations LC SR EG with specified conductor ranges for in and out connections streamline installation, reduce field rewiring, and minimize common errors. Business Impact Faster build times, reduced wiring mistakes, and consistent termination practices across projects. Application Large-scale solar and telecom DC distribution centers rely on standardized terminations. Feature System voltage of 1000 VDC and fusible protection provide robust protection against overcurrent while meeting utility-grade requirements. Business Impact Compliance with high-voltage PV standards and safer shutdown procedures, enabling smoother interconnection and permitting. Application Utility and project-level solar installations. Feature Compatibility with detailed specification tables for wire sizes (LC in 300 kcmil-#6, SR in 300 kcmil-#6, EG in #4-#14 AWG to 1/0-#14) supports flexible wiring scenarios, reducing the need for adapters or custom parts. Business Impact Installation time is shortened and risk is lowered through clear, manufacturer-supported wiring options. Application PV combiner boxes, switchgear interfaces, and DC panels. Feature 1000 VDC system voltage and UL 1741 NEC 690 alignment assures installers meet critical safety codes, improving permit approvals. Business Impact Accelerated project approval and safer commissioning in high-voltage PV systems. Application Utility-scale and commercial rooftop installations.
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FAQs
Yes. The DCG1104FRM supports LC in 300 kcmil-#6 and SR in 300 kcmil-#6, with EG wiring up to #14 AWG to 1/0-#14. This configuration matches common solar DC feed requirements and simplifies mounting in standard electrical enclosures while maintaining 1000 VDC system integrity and safe isolation.
The unit aligns with NEC 690 per UL 1741 and UL 98B, ensuring compliance for PV installations. Its NEMA 3R enclosure provides weather resistance for outdoor use, and the grounded, isolated return design enhances fault protection and safe service procedures in harsh environments.
Yes. It is specifically designed for solar DC photovoltaic systems, offering fusible protection, a grounded isolated return, and 1000 VDC capability. This makes it appropriate for PV array DC isolation and safe integration with battery storage where high-voltage DC distribution is present.
Warranty follows Eaton policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Routine maintenance includes periodic visual inspection, fuse status verification, and enclosure cleanliness. The robust NEMA 3R enclosure minimizes environmental ingress and reduces maintenance cycles in outdoor settings.
By providing a pre-engineered, code-ready solution with clearly defined wire termination sizes and a rugged NEMA 3R enclosure, the DCG1104FRM minimizes field rewiring, simplifies commissioning, and reduces downtime. The standardized specifications help streamline procurement and reduce through-life electrical risks, delivering measurable ROI in PV projects.