Eaton DCG1104UPM DC Disconnect - UL 98B PV-ready
Part Number: DCG1104UPM
Quick Summary
The Eaton DCG1104UPM DC disconnect provides a rugged 200 A isolation switch for solar PV systems in harsh environments. Engineers often struggle to keep DC terminations safe in outdoor solar arrays while meeting NEC 690 and UL 1741 requirements. It carries UL 98B and NEC 690 per UL 1741 certifications, ensuring enclosure integrity and compliant PV DC switching. With a NEMA 4 painted galvanized steel enclosure and a 1000 VDC rating, it delivers reliable protection, faster installation, and reduced service calls for solar installers and OEMs. This solution supports DC photovoltaic applications with isolated return and grounded wiring, offering long-term reliability and clear lifecycle value for energy projects.
Product Information
Extended Description
DCG1104UPM Eaton: Eaton heavy duty DC disconnect,200A,NEMA 4,Painted steel,Non-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
DCG1104UPM
UPC
786685625317
Product Length/Depth
35.38 in
Product Height
11.63 in
Product Width
16.54 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
UL 98B NEC 690 per UL 1741
Type
DC disconnect/grounded system
Amperage Rating
200 A
Number of circuits
1
Ground
Grounded
Maximum voltage
1000 VDC
NEMA rating
NEMA 4
Protection
Non-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 4
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Isolation
Isolated return
Switch type
DC photovoltaic systems Heavy duty
Protection
Non-fusible
200 A, non-fusible, grounded DC disconnect delivers a clear, mechanically robust means to isolate solar PV strings under load, reducing arc-flash risk and simplifying lockout/tagout procedures. This translates to faster maintenance windows and improved compliance during commissioning and routine tests in utility-scale or rooftop PV installations. Isolated return and wiring flexibility enable straightforward, code-compliant terminations; 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, minimizing splices and copper losses while matching common conductor schedules. The rugged NEMA 4 enclosure in painted galvanized steel withstands outdoor exposure, reducing corrosion risk and service calls in harsh environments. A 1000 VDC system rating supports modern high-voltage PV strings, enabling broader string optimization on rooftops or ground-mounted arrays. Regulatory compliance is strengthened by UL 98B and NEC 690 per UL 1741 certifications, easing inspection and integration with PV hardware. Compact dimensions (35.38 in L x 16.54 in W x 11.63 in H) and a 45 lb weight enable straightforward installation on standard racking or inside electrical rooms, contributing to faster project completion and lower install labor costs. The unit’s non-fusible protection and grounded design align with industry best practices for safe DC switching, while the isolated return configuration reduces potential ground loops, improving system integrity across solar projects.
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FAQs
The DCG1104UPM is mounted in a NEMA 4 enclosure suitable for outdoor use. Connect the line conductors to the LC termination (In 300 kcmil-#6) and the load conductors to the same gauge on the outboard side. Use the SR and EG terminations as specified for isolated return and mixed conductor arrangements. Ensure proper LOTO procedures and verify 1000 VDC rating before energizing. Follow NEC 690 and UL 1741 guidelines throughout installation.
Main lug connections support LC terminations In 300 kcmil-#6 out 300 kcmil-#6, SR terminations in 300 kcmil-#6 out 300 kcmil-#6, and EG terminations in #4-#14 AWG in, out 1/0-#14. This wiring approach enables flexible string and conductor scheduling for diverse PV layouts while maintaining a grounded, isolated return configuration.
This unit carries UL 98B and NEC 690 per UL 1741 certifications, supporting safe DC switching for photovoltaic systems. The enclosure is rated NEMA 4 and constructed from painted galvanized steel, enhancing outdoor durability and weather resistance. These certifications streamline approval with inspectors and ensure alignment with industry safety standards.
Yes. The NEMA 4 enclosure provides weather resistance suitable for outdoor rooftop or ground-mounted installations, and the 1000 VDC rating supports modern PV strings. Its 200 A non-fusible, grounded configuration with isolated return simplifies safe isolation across diverse PV layouts, making it appropriate for both rooftop modules and utility-scale deployments.
The heavy-duty design minimizes maintenance and replacement cycles, reducing downtime and service calls. A 25-000 Eaton warranty offers protection for one year from installation or eighteen months from shipment. Reliability, regulatory compliance, and extended enclosure longevity translate into lower lifecycle costs and safer, more predictable PV system operation.