Eaton DCG1103UPM DC Disconnect - NEMA 4, 1000 VDC Solar
Part Number: DCG1103UPM
Quick Summary
Eaton DCG1103UPM heavy duty DC disconnect safely interrupts DC power for solar PV systems. Engineers often struggle with selecting a disconnect that withstands outdoor exposure, reduces downtime, and minimizes arc-flash risk in high-current arrays. This unit delivers rugged NEMA 4 enclosure protection, a grounded isolated return, and a 1000 VDC rating, meeting NEC 690 per UL 1741 and UL 98B certifications. Designed for 100 A, single-circuit use, it supports #14-1/0 AWG lugs and solid returns, streamlining field terminations. By combining durable painted galvanized steel construction with clear installation data, this disconnect helps you stay compliant while accelerating commissioning, reducing wiring errors, and cutting service intervals for solar infrastructure.
Product Information
Extended Description
DCG1103UPM Eaton: Eaton heavy duty DC disconnect,100A,NEMA 4,Painted 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
DCG1103UPM
UPC
786685557717
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
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
1
Ground
Grounded
Maximum voltage
1000 VDC
NEMA rating
NEMA 4
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 4
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Isolation
Isolated return
Switch type
Heavy duty DC photovoltaic systems
Protection
Non-fusible
Feature: 100 A, single-circuit DC disconnect. Business Impact: Enables reliable, code-compliant isolation of solar arrays with minimal downtime, improving safety and ease of maintenance. Application: Ideal for rooftop and ground-mounted PV installations where a rugged, non-fusible disconnect is required. This configuration reduces wiring errors and speeds up commissioning in the field. Long-tail keywords: 100 A DC disconnect, single circuit solar disconnect, non-fusible DC disconnect. Feature: NEMA 4 enclosure with painted galvanized steel. Business Impact: Delivers outdoor-rated protection against wind-driven rain, dust, and grime, extending service life and reducing weather-related failures. Application: Outdoor solar PV disconnects on rooftops and equipment pads. Long-tail keywords: NEMA 4 enclosure solar disconnect, outdoor DC disconnect, painted galvanized steel enclosure. Feature: 1000 VDC system voltage rating with isolated return and grounded configuration. Business Impact: Supports high-voltage DC PV circuits safely, meeting critical insulation and fault-path requirements for modern solar arrays. Application: Utility-scale and commercial PV systems up to 1000 VDC. Long-tail keywords: 1000 VDC solar disconnect, grounded DC isolation, isolated return. Feature: Lug capacity for #14-1/0 AWG and solid return. Business Impact: Facilitates straightforward, secure terminations, reducing field termination errors and downtime. Application: Commonly used with large-gauge PV conductors and hard-service terminations. Long-tail keywords: #14-1/0 AWG lug capacity, solar live-end wiring, heavy-duty terminal connections. Feature: Certifications and compliance (NEC 690 per UL 1741, UL 98B). Business Impact: Provides regulatory alignment, reduces risk during audits and inspections, and supports safer installation practices. Application: Essential for code-compliant solar projects and certified hardware procurement. Long-tail keywords: NEC 690 UL 1741, UL 98B safety standards, certified solar disconnect. Feature: Dimensioned enclosure and weight details for fitment planning. Business Impact: Eases enclosure layout, mounting, and transport planning, minimizing site surprises and installation delays. Application: Suitable for integrated control rooms and outdoor electrical gardens. Long-tail keywords: 25.5 in depth, 13.25 in width, 9 in height, 24 lb weight. Feature: Warranty and service terms. Business Impact: Provides clear protection against defects, supporting long-term total cost of ownership. Application: Enterprise solar deployments requiring vendor-backed support. Long-tail keywords: Eaton warranty 25-000, one year from installation, 18 months from shipment.
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FAQs
The DCG1103UPM is designed for solar photovoltaic installations, delivering 100 A of current for a single circuit up to 1000 VDC. It uses a grounded, isolated return with a non-fusible protection scheme and accepts #14-1/0 AWG lugs. Its NEMA 4 enclosure and painted galvanized steel housing make it suitable for outdoor rooftop and ground-mounted PV setups, providing reliable service in harsh environments.
A 1000 VDC rating expands the range of compatible PV arrays while maintaining insulation integrity and safe fault clearance. This rating supports longer DC runs and higher efficiency, while the isolated return and grounded design help mitigate arc risk and ensure compliant fault paths in accordance with NEC 690 and UL 1741 requirements.
Yes. The unit’s NEMA 4 enclosure provides weather-resistant protection against wind-driven rain and dust, making it suitable for outdoor rooftop and ground-mounted solar configurations. Painted galvanized steel offers durability, while the non-fusible design simplifies maintenance and reduces potential fault sources in exposed environments.
The DCG1103UPM meets NEC 690 per UL 1741 and UL 98B certifications, ensuring compliance for solar DC systems and enclosure integrity. Its NEMA 4 enclosure further confirms suitability for outdoor use, while the grounding and isolated return support safe, code-aligned operation in PV installations.
Eaton provides a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For maintenance, inspect terminations and enclosure seals regularly, confirm lug torque for #14-1/0 AWG conductors, and verify the isolated return remains intact to maintain safe, reliable operation in solar environments.