Eaton DCU2064URM DC Disconnect - NEMA 3R 600 VDC
Part Number: DCU2064URM
Quick Summary
Eaton heavy duty DC disconnect isolates solar DC circuits in outdoor, harsh industrial environments. Operators often struggle with downtime and non-compliant isolation, making fast, reliable field service critical. UL 98B and NEC 690 per UL 1741 compliance ensure safety, while the NEMA 3R enclosure adds outdoor durability. Designed for solar power systems with a 600 VDC rating and robust non-fusible protection, it offers seamless wiring across LC, SR, and EG configurations for faster installations and lower total cost of ownership.
Product Information
Extended Description
DCU2064URM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,200A,NEMA 3R,Painted galvanized steel,Non-fusible,Ungrounded,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-#14,600 Vdc,2
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU2064URM
UPC
786685625140
Product Length/Depth
37.5 in
Product Height
11.5 in
Product Width
19 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/ungrounded system
Amperage Rating
200 A
Number of circuits
2
Ground
Ungrounded
Maximum voltage
600 VDC
NEMA rating
NEMA 3R
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
600 VDC per pole
Voltage rating
600 VDC
Series
DC Photovoltaic Applications
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Switch type
Heavy duty
Protection
Non-fusible
Feature: 200 A amperage rating with two circuits allows mid-to-large solar arrays to be isolated with a single disconnect, reducing installation time and component count. Business impact: lower material costs and quicker serviceability in PV installations. Application: rooftop or ground-mounted solar systems seeking efficient, compliant isolation. Feature: Non-fusible, ungrounded design simplifies operation and minimizes maintenance, reducing arc-flash risk and enabling straightforward inspections. Application: outdoor DC circuits where rapid, safe disconnection is required. Feature: NEMA 3R enclosure in painted galvanized steel delivers outdoor durability, corrosion resistance, and weather resistance. Application: exposed outdoor substations and solar field enclosures. Feature: flexible main lug wiring with LC SR and EG configurations supports diverse conductor sizes, easing field wiring and inventory planning. Application: PV array interconnections and inverter input sections. Feature: 600 VDC system voltage per pole and overall 600 VDC rating ensure compliance with common solar installations while providing robust protection. Application: mid-size PV systems and utility-scale interfaces. Feature: UL 98B and NEC 690 per UL 1741 certifications offer regulatory confidence, reducing risk in design reviews and commissioning. Application: utility and commercial solar projects prioritizing compliance. Feature: Dimensions and weight (37.5 in L × 19 in W × 11.5 in H, 45 lb) support planning for space-constrained enclosures and mounting strategies. Application: field deployment where footprint and weight matter for door clearance and mounting rails. Warranty alignment with Eaton policy provides a clear service horizon and protection in installations.
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FAQs
The DCU2064URM is ideal for outdoor solar photovoltaic installations, including rooftop and ground-mounted PV systems, where reliable isolation, 600 VDC rating, and a rugged NEMA 3R enclosure are essential. Its 200 A capacity and two circuits support mid-to-large arrays, reducing the need for multiple disconnects and simplifying commissioning.
DCU2064URM complies with UL 98B for enclosure protection and NEC 690 guidelines per UL 1741 for PV systems, ensuring safe disconnect operation in solar applications. The combination of non-fusible protection, ungrounded configuration, and a weather-resistant enclosure helps maintain code-compliant performance in harsh environments.
Yes. The unit supports LC wiring up to 300 kCMIL-#6, SR wiring up to 300 kCMIL-#6, and EG wiring from #4 to #14 AWG with outputs up to 1/0-#14. This broad compatibility simplifies field installation, reduces inventory complexity, and allows flexible connection schemes for PV arrays and inverters.
The DCU2064URM uses a NEMA 3R painted galvanized steel enclosure, delivering protection against rain, dust, and corrosion in outdoor settings. This enclosure rating, combined with a 600 VDC system voltage, makes it suitable for exposed solar yard installations and service entrances exposed to weather.
Eaton backs the DCU2064URM with a warranty aligned to policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This ensures coverage for manufacturing defects and supports maintenance planning, helping protect total cost of ownership in solar projects.