Eaton DCU2104FPM DC Disconnect - NEMA 4, 1000 VDC
Part Number: DCU2104FPM
Quick Summary
DC disconnect from Eaton, the DCU2104FPM, delivers reliable 200 A ungrounded isolation for solar array protection. Site maintenance and safety concerns are common with live PV strings; this enclosure minimizes exposure and reduces downtime. Certified to NEC 690 per UL 1741 and UL 98B, with a NEMA 4 enclosure and fusible protection. For designers and procurement teams, it delivers clear value—robust solar protection, simple installation, and long-term cost savings through reduced maintenance.
Product Information
Extended Description
DCU2104FPM Eaton: Eaton Heavy duty DC disconnect, 200 A, NEMA 4, Painted steel, Fusible, 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, Max:1000 Vdc, NEMA 4, 2, Fusible, System:1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU2104FPM
UPC
786685625713
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
NEC 690 per UL 1741 UL 98B
Type
DC disconnect/ungrounded system
Amperage Rating
200 A
Number of circuits
2
Maximum voltage
1000 VDC
NEMA rating
NEMA 4
Protection
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
Fusible
Switch type
Heavy duty
Protection
Fusible
The DCU2104FPM combines a high amperage rating with practical, field-proven design to streamline solar projects and reduce lifecycle costs. Feature: 200 A, 2 circuits; Business Impact: supports mid-to-large PV arrays with reliable isolation, reducing downtime and maintenance frequency; Application: solar and renewable energy installations with demanding current loads. The rugged NEMA 4 enclosure in painted galvanized steel provides weatherproof protection for outdoor deployments, ensuring consistent performance in harsh environments and extending service life. Fuse configuration is fusible, offering protective coordination that minimizes downstream equipment damage while simplifying compliance with safety standards. The main lug wiring accommodates LC up to 300 kcmil and SR up to 300 kcmil, with EG wiring from #4-#14 AWG to 1/0-#14, enabling flexible field wiring. Winterized and corrosion-resistant construction supports long-term installations in exposed locations. Compatibility with 1000 VDC systems and a 35.38 inch depth aids in planning and installation efficiency. Overall, this unit reduces field rework and accelerates commissioning while meeting NEC and UL requirements. Designed for easy field wiring and compatible with standard switchgear interfaces, it reduces install time and commissioning risk. With field-proven durability, the DCU2104FPM supports reliable operation across utility-scale and commercial solar projects.
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FAQs
The DCU2104FPM supports solar photovoltaic installations up to 1000 VDC with a 200 A rating and two circuits. It uses fusible protection and a NEMA 4, painted galvanized steel enclosure suitable for outdoor deployments. Wiring options include LC and SR lugs up to 300 kcmil and EG connections from #4-#14 AWG to 1/0-#14, enabling flexible field integration across PV, wind, and microgrid projects.
Key specs include 200 A amperage rating, two circuits, maximum voltage of 1000 VDC, NEMA 4 enclosure, and fusible protection. It features a painted galvanized steel enclosure and a main lug configuration supporting LC: 300 kcmil-#6 in/out, SR: 300 kcmil-#6 in/out, EG: #4-#14 AWG in and up to 1/0-#14 out. Overall, it is designed for solar and other renewable applications requiring robust DC isolation.
Yes, the DCU2104FPM is designed for solar PV protection. It complies with NEC 690, as referenced by UL 1741, and UL 98B. The enclosure is rated NEMA 4 for outdoor use, and the device uses fusible protection for safe, reliable DC isolation. This combination supports compliant installation and safer maintenance of 1000 VDC PV systems.
The 200 A, two-circuit design reduces the number of components needed for mid-to-large PV setups, while the fusible protection minimizes downstream damage in fault events, lowering repair costs. The NEMA 4 enclosure protects against weather, reducing corrosion-related maintenance. Turn-key wiring compatibility and straightforward commissioning shorten project schedules, delivering quicker ROI and longer equipment life.
The Eaton specification sheet for DCU2104FPM is available under the Specifications and datasheets group. You can access the Eaton Specification Sheet - DCU2104FPM at Eaton’s official site via the provided asset URL in the data set. This document provides detailed wiring diagrams, lug sizes, mounting clearances, and certification references to support design and procurement decisions.