Eaton DCG1103UWM DC disconnect - NEMA 4X 1000 VDC
Part Number: DCG1103UWM
Quick Summary
The Eaton DCG1103UWM DC disconnect provides safe, reliable isolation for grounded PV systems. In outdoor solar deployments, engineers frequently encounter corrosion, ingress, and space limitations that complicate maintenance and compliance. This unit meets UL 98B and NEC 690 per UL 1741, and it uses a NEMA 4X enclosure to withstand harsh environments. The design emphasizes durability and ease of service, reducing downtime and lifecycle costs. For solar projects, this disconnect supports 100 A, 1000 VDC, single circuit operation, and lug capacities of #14-1/0 AWG, offering a practical, scalable solution for grounded PV configurations.
Product Information
Extended Description
DCG1103UWM Eaton: Eaton heavy duty DC disconnect,For Grounded PV Systems,100A,NEMA 4X,Grade 304 stainless 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
DCG1103UWM
UPC
786685557748
Product Length/Depth
25.5 in
Product Height
9 in
Product Width
13.25 in
Product Weight
24 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
UL 98B NEC 690 per UL 1741
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 4X
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 4X
Enclosure material
304 stainless steel
Fuse configuration
Non-fusible
Isolation
Isolated return
Switch type
DC photovoltaic systems Heavy duty
Protection
Non-fusible
Enclosure and material durability deliver real-world protection in outdoor installations; a 304 stainless steel NEMA 4X enclosure minimizes corrosion and weather ingress, extending service life and lowering maintenance costs. The business impact is fewer field failures and reduced downtime, especially in harsh environments, making it ideal for rooftop or ground-mount PV applications. Compatibility with #14-1/0 AWG lugs and solid returns simplifies wiring during installation, speeding setup and reducing labor hours, which translates to lower total installed cost. With a non-fusible design and isolated return, the system design remains straightforward, improving fault isolation and safety in busy electrical spaces. These features align with solar industry practices for robust, scalable, and compliant DC disconnects across varying project sizes.
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FAQs
The DCG1103UWM is rated for up to 1000 VDC and supports a single 100 A circuit with lug capacity for #14-1/0 AWG on both the main lug and solid return. This makes it suitable for grounded PV arrays and accommodates typical PV wiring configurations found in rooftop and ground-mount installations.
This disconnect carries UL 98B and NEC 690 per UL 1741 compliance, and it uses a NEMA 4X enclosure with 304 stainless steel construction. These certifications and the enclosure rating ensure reliable performance in outdoor environments and alignment with solar-specific electrical codes.
Yes. Designed for grounded PV systems, it is appropriate for both rooftop and ground-mounted installations where durable outdoor protection, isolated return, and easy maintenance are priorities. The NEMA 4X enclosure and corrosion-resistant material make it well-suited for exposed outdoor conditions.
Eaton provides a standard warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. The rugged stainless enclosure and non-fusible design reduce maintenance needs and simplify field servicing, contributing to lower long-term operating costs.
Detailed specifications are available in the Eaton specification sheet for DCG1103UWM, along with product notes that address configurations, ampere ratings, and circuit options. You can also refer to the product page and the provided installation resources for mounting, lug sizing, and wiring guidance.