Eaton DCG1103URM DC Disconnect - NEC 690 UL1741
Part Number: DCG1103URM
Quick Summary
Eaton DCG1103URM heavy-duty DC disconnect for grounded PV systems. Engineers frequently struggle with safe isolation in outdoor solar arrays while meeting NEC and UL requirements. This unit delivers NEC 690 compliance per UL 1741 and UL 98B ratings, housed in a weather-resistant NEMA 3R enclosure. With a 100A rating and a single circuit, it provides reliable, code-compliant DC isolation that reduces downtime and supports scalable solar projects. Designed for grounded PV protection, it integrates smoothly with 1000 VDC systems and complements other Eaton protection and circuit-control devices.
Product Information
Extended Description
DCG1103URM Eaton: Eaton heavy duty DC disconnect,For Grounded PV Systems,100A,NEMA 3R,Painted galvanized steel,Non-fusible,Grounded,#14-1/0 AWG lug capacity, #14-1/0 AWG solid return,1,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG1103URM
UPC
786685557687
Product Length/Depth
9.89 in
Product Height
21.99 in
Product Width
11.84 in
Product Weight
22 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.
Special features
For Grounded PV Systems
Type
DC disconnect/grounded system
Amperage Rating
100A
Number of circuits
1
Ground
Grounded
Maximum voltage
1000 VDC
NEMA rating
NEMA 3R
Protection
Non-fusible
Application
Solar
Main lug wire size
#14-1/0 AWG lug capacity, #14-1/0 AWG solid return
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: 100A amperage rating with 1 circuit; Business Impact: Enables safe, code-compliant DC isolation for small to mid-size PV arrays, reducing fault exposure and improving maintenance efficiency; Application: Grounded PV installations up to 1000 VDC. Feature: NEMA 3R enclosure made from painted galvanized steel; Business Impact: Weather-resistant outdoor performance minimizes corrosion and service calls in harsh environments; Application: Roof-mounted or ground-mounted PV systems exposed to the elements. Feature: Non-fusible protection with isolated return; Business Impact: Simplifies compliance and troubleshooting by providing clear isolation without fusing complexity; Application: Safe DC disconnection during maintenance in grounded systems. Feature: Main lugs support #14-1/0 AWG, solid or stranded; Business Impact: Flexible wiring options streamline installation and reduce rework; Application: PV conductors and interconnects. Feature: Certifications NEC 690 per UL 1741 and UL 98B; Business Impact: Confirms regulatory compliance, enabling faster approvals and project timelines; Application: Solar installations requiring UL/NEMA compliance. Feature: Series: DC photovoltaic applications; Business Impact: Optimized for solar-specific configurations, minimizing integration challenges; Application: PV arrays requiring rugged DC disconnects with standardized specs.
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FAQs
DCG1103URM supports a single 100A circuit for grounded PV systems up to 1000 VDC. It accommodates #14-1/0 AWG lugs, both stranded and solid conductors, making it suitable for common residential and commercial solar installations while meeting NEC 690 requirements.
Yes. The unit is housed in a NEMA 3R enclosure constructed from painted galvanized steel, offering weather resistance and durability for outdoor solar applications. It protects the disconnect from rain, dust, and corrosion, reducing maintenance cycles in exposed environments.
The DCG1103URM is certified under NEC 690 per UL 1741 and UL 98B, ensuring compliance with electrical safety and enclosure reliability standards for PV systems. This simplifies regulatory approvals and supports code-compliant installations across jurisdictions.
The disconnect uses a grounded, isolated return configuration with non-fusible protection. This design improves maintenance safety by clearly isolating the DC circuit without affecting other system parts, and it aligns with common PV install practices for robust protection.
Eaton provides a material warranty per policy 25-000, offering one year from installation or eighteen months from shipment, whichever is earlier. This coverage supports ongoing reliability and reduces long-term ownership costs for solar projects.