Eaton DCU2102UPM DC disconnect - NEMA 4, 1000 VDC
Part Number: DCU2102UPM
Quick Summary
Eaton DCU2102UPM DC disconnect is a heavy-duty isolation device for solar PV arrays in ungrounded systems. Engineers often struggle with safe maintenance and reliable shutdowns in space-limited, high-voltage installations. It is certified to NEC 690 per UL 1741 and UL 98B, helping meet regulatory requirements while protecting equipment. This two-circuit, 60 A unit is rated at 1000 VDC and housed in a rugged NEMA 4 painted steel enclosure. Together, these features simplify field wiring, speed commissioning, and support compliant, long-term operation for commercial and solar utility projects.
Product Information
Extended Description
DCU2102UPM Eaton: Eaton Heavy duty DC disconnect, 60 A, NEMA 4, Painted 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
DCU2102UPM
UPC
786685558066
Product Length/Depth
10.22 in
Product Height
19.08 in
Product Width
12.88 in
Product Weight
40 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.
Special features
For Ungrounded PV Systems
Type
DC disconnect/ungrounded system
Amperage Rating
60 A
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 4
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Switch type
Heavy duty
Protection
Non-fusible
60 A, 2 circuits, non-fusible DC disconnect; provides a robust isolation point that minimizes fault exposure and supports safe maintenance across two independent strings. Business impact: reduces downtime and arc-flash risk while enabling flexible string configurations for larger solar arrays. Application: ideal for commercial and utility-scale PV installations requiring a two-string DC disconnect with reliable performance. Ungrounded design and non-fusible protection; eliminates fuse handling and associated maintenance while aligning with ungrounded PV system requirements. Business impact: improves safety and simplifies compliance pathways, reducing labor costs during commissioning and servicing. Application: ungrounded PV systems where NEC 690 guidance applies. 1000 VDC system voltage; accommodates high-voltage PV layouts with longer string runs and fewer intermediate bundles. Business impact: enables efficient system design and potential land-use optimization. Application: modern solar installations demanding high-voltage operation. NEMA 4 enclosure in painted galvanized steel; weatherproof and rugged for outdoor or harsh environments. Business impact: minimizes environmental ingress, extends service life, and lowers enclosure-related downtime. Application: outdoor solar farms and rooftop installations exposed to weather. Lug capacity #14-#2 AWG; supports both lugged and solid-return wiring for flexible terminations. Business impact: simplifies field wiring, reduces termination time, and improves connection reliability. Application: standard PV wiring practice for DC conductors and utility-grade modules. Two-circuit configuration with clear labeling; supports modular expansion and straightforward zoning of PV strings. Business impact: helps scale PV capacity without redesigning the disconnect, lowering total cost of ownership. Application: evolving solar sites with multiple strings requiring reliable isolation. Catalog notes indicate configurations vary by amperage and circuit count; consult the product dimension tables for exact layouts. This enhances planning accuracy and ensures you select the right configuration for your specific PV layout.
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FAQs
The DCU2102UPM is designed for ungrounded solar PV systems and supports two circuits at up to 60 A. It serves as the primary isolation point between PV arrays and inverters in commercial and utility-scale installations, including outdoor settings where a NEMA 4 enclosure protects against weather and corrosion.
Key specifications include a 60 A amperage rating, 2 circuits, non-fusible configuration, ungrounded system, and a 1000 VDC rating. It uses a NEMA 4 enclosure made of painted galvanized steel and accommodates lug connections for #14-#2 AWG conductors, with a solid return path for reliable terminations.
Yes. The DCU2102UPM aligns with NEC 690 requirements via UL 1741 certification and UL 98B. This certification combination supports safe operation, proper isolation, and compliance with critical solar installation codes, helping installers meet regulatory expectations without compromising performance.
The unit uses a NEMA 4 enclosure in painted galvanized steel for outdoor use, providing weather resistance. Wiring options include lug capacity for #14-#2 AWG with solid return paths, enabling easy, secure field terminations and compatibility with common PV conductors and string connections.
Eaton provides a warranty under policy 25-000, with coverage for one year from installation or eighteen months from shipment, whichever comes first. This warranty covers manufacturing defects and supports performance reliability, complemented by Eaton’s technical support for installation and compliance questions.