Eaton DCU2101URM DC Disconnect - 1000 VDC, NEMA 3R
Part Number: DCU2101URM
Quick Summary
The Eaton DCU2101URM DC Disconnect provides heavy‑duty DC isolation for solar PV systems. If you’re upgrading protection for a growing solar installation, the right disconnect can reduce downtime and simplify compliance. It meets NEC 690 requirements per UL 1741 and UL 98B, with a NEMA 3R outdoor enclosure and a painted galvanized steel body for rugged reliability. This solution also delivers value through easy wiring with #14-#2 AWG lugs, a clear two‑circuit layout, and a 1000 VDC rating, helping you balance safety, performance, and total cost of ownership while enabling scalable solar deployments.
Product Information
Extended Description
DCU2101URM Eaton: Eaton Heavy duty DC disconnect, 30 A, NEMA 3R, Painted galvanized steel, Non-fusible, Ungrounded, #14-#2 AWG lug capacity, #14-#2 AWG solid return, 2, DC photovoltaic applications, Rating:1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU2101URM
UPC
786685558028
Product Length/Depth
10.22 in
Product Height
9 in
Product Width
12.88 in
Product Weight
15 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/ungrounded system
Amperage Rating
30A
Number of circuits
2
Ground
Ungrounded
Protection
Non-fusible
Application
Solar
Main lug wire size
#14-#2 AWG lug capacity, #14-#2 AWG solid return
System voltage
1000 VDC
Voltage rating
1000 VDC
Series
DC photovoltaic applications
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Switch type
Heavy duty
Protection
Non-fusible
The 30 A amperage rating and two‑circuit design provide scalable protection for solar installations while keeping footprint and costs efficient; this translates to reduced fault exposure and improved continuity of service during maintenance. A non‑fusible, ungrounded configuration simplifies installation and minimizes fault pathways, delivering safer isolation without needless complexity in PV arrays. The NEMA 3R enclosure, crafted from painted galvanized steel, offers durable outdoor performance and weather resistance, supporting rooftop and open‑rack applications with minimal enclosure maintenance. Wire compatibility is broad, with main lug capacity for #14‑#2 AWG and solid returns, enabling flexible field terminations and easier retrofits in existing PV circuits. Compliance is baked in through NEC 690 alignment and UL 1741/UL 98B certification, reducing regulatory risk and expediting project approvals. Dimensions (10.22 in L × 9 in H × 12.88 in W) and a 15 lb weight inform layout and mounting decisions, helping engineers plan enclosure cavities, mounting strategies, and service access for efficient installation and maintenance in real‑world sites.
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FAQs
The DCU2101URM is designed for solar PV systems, including outdoor rooftop and ground‑mount installations, where safe DC isolation and weather‑resistant enclosures are required.
It is a 30 A, 2‑circuit unit, ungrounded, non‑fusible, rated for 1000 VDC, suitable for DC PV applications.
Yes. It complies with NEC 690 requirements and carries UL 1741 and UL 98B certifications, supporting safe and code‑compliant PV installations.
The unit supports main lug wiring for #14‑#2 AWG, including solid returns, enabling flexible field terminations for two DC circuits.
It uses a NEMA 3R enclosure made of painted galvanized steel, suitable for outdoor use. Dimensions are 10.22 in L × 9 in H × 12.88 in W, with an approximate weight of 15 lb to assist site planning and mounting.