Eaton DCG2103URM DC Disconnect - NEMA 3R, 100A
Part Number: DCG2103URM
Quick Summary
Eaton DCG2103URM DC disconnect is a heavy-duty switch designed to isolate solar DC strings in photovoltaic installations. Many installers struggle with outdoor reliability, corrosion resistance, and compliant isolation under real-world operating conditions. This model carries NEC 690 per UL 1741, UL 98B, and a NEMA 3R enclosure rating to support outdoor PV installations, providing rugged protection and predictable performance. With a 100A rating and grounded, isolated return design, it simplifies wiring of #14-1/0 AWG conductors while delivering robust protection. In practice, you gain faster commissioning, reduced maintenance intervals, and lower lifecycle costs when deploying this trusted disconnect across commercial and industrial solar projects.
Product Information
Extended Description
DCG2103URM Eaton: Eaton heavy duty DC disconnect,100A,NEMA 3R,Painted galvanized steel,Non-fusible,Grounded,#14-1/0 AWG lug capacity, #14-1/0 AWG solid return,2,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG2103URM
UPC
786685557809
Product Length/Depth
10.22 in
Product Height
24.95 in
Product Width
16.13 in
Product Weight
37 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
100A
Number of circuits
2
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
Double Up on Safety
Double Up on Safety
Eaton Specification Sheet - DCG2103URM
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 100A, 2 circuits, non-fusible DC disconnect. Business Impact: Enables reliable primary isolation for two DC strings with minimal fault exposure, reducing downtime during maintenance and testing. Application: Suitable for solar PV arrays in commercial rooftops or utility-scale setups where quick, safe de-energization is essential. Feature: NEMA 3R enclosure, painted galvanized steel. Business Impact: Provides outdoor-rated durability against weather, corrosion, and temperature cycling, safeguarding system integrity and extending service life. Application: Ideal for outdoor PV installations in harsh environments.Feature: Grounded, isolated return configuration. Business Impact: Improves fault clarity and wiring safety, helping meet stringent electrical codes while simplifying thermal and electrical diagnostics during inspections. Application: DC protection for photovoltaic systems with isolated return schemes.Feature: Main lug capacity for #14-1/0 AWG, solid return. Business Impact: Supports common PV wiring sizes, reducing termination time and wiring errors, while enabling flexible system expansion. Application: Connector compatibility for mid- to large-size solar installations.Feature: 1000 VDC system voltage, non-fusible protection. Business Impact: Delivers high-voltage isolation for modern PV strings with compliant protection, enabling scalable solar projects with risk mitigation. Application: High-voltage DC protection in PV arrays and microgrid applications.Feature: Certifications and warranty alignment. Business Impact: Ensures code compliance (NEC 690 per UL 1741, UL 98B) and predictable support under Eaton’s warranty policy, increasing procurement confidence. Application: Procurement for regulated energy projects requiring documented standards.
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FAQs
Plan for a NEMA 3R outdoor enclosure, mount in a ventilated location, and ensure compatibility with #14-1/0 AWG conductors for both lug capacity and solid return. Verify proper grounding and isolated return configuration to meet NEC 690 requirements.
Rated for 100A with two circuits, maximum voltage 1000 VDC, non-fusible protection, and grounded, isolated return configuration. Suitable for solar PV systems and DC photovoltaic applications.
Yes. It is specifically designed for DC isolation in PV installations, featuring a NEMA 3R outdoor enclosure and 1000 VDC ratings to support field-deployed solar projects.
It carries NEC 690 requirements per UL 1741 and UL 98B, ensuring code compliance for PV protection equipment and safety in outdoor environments.
Eaton provides a standard policy (Selling Policy 25-000) with a one-year warranty from installation or eighteen months from shipment, whichever occurs first, covering defects and performance concerns.