Eaton DCU2101UPM DC Disconnect - UL 98B NEC 690 UL 1741
Part Number: DCU2101UPM
Quick Summary
Eaton DCU2101UPM DC disconnect is a rugged, 2-pole solution for solar PV systems operating up to 1000 VDC. Facility teams often struggle with reliable isolation in outdoor environments, weather exposure, and ensuring rapid commissioning and maintenance. UL 98B listing, NEC 690 compliance per UL1741, and a NEMA 4 enclosure deliver essential regulatory alignment and durable protection in harsh sites. A compact footprint and clear wiring paths help streamline installation, reduce field errors, and accelerate project timelines. By combining robust protection with straightforward servicing, this unit supports safer operations, lower maintenance costs, and dependable performance in commercial and utility-scale solar deployments.
Product Information
Extended Description
DCU2101UPM Eaton: Eaton Heavy duty DC disconnect, 30 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
DCU2101UPM
UPC
786685558059
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
UL 98B NEC 690 per UL 1741
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 4
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Switch type
Heavy duty
Protection
Non-fusible
Feature: 30A amperage rating with 2 circuits in a non-fusible, ungrounded configuration. Business Impact: Enables simple, safe isolation of two PV circuits without adding fusing while reducing fault exposure and maintenance complexity. Application: Ideal for solar PV arrays and other 1000 VDC systems where fast disconnects and clear isolation procedures matter. Feature: NEMA 4 painted galvanized steel enclosure. Business Impact: Delivers outdoor durability, corrosion resistance, and reliable operation in wet or dusty environments. Application: Outdoor rooftops and ground-mounted PV installations in harsh climates. Feature: Lug capacity for #14-#2 AWG with solid returns. Business Impact: Supports standard PV conductors, reducing installation time and the need for specialized accessories. Application: Utility-scale and commercial solar projects with common wiring practices. Feature: UL 98B and NEC 690 (UL1741) certifications. Business Impact: Ensures regulatory compliance and broad acceptance in code-driven projects. Application: Safe integration into compliant solar, battery storage, and renewable energy systems. Feature: Dimensions and weight (10.22 in depth, 12.88 in width, 19.08 in height, 40 lb). Business Impact: Helps with equipment layout planning and enclosure clearance, minimizing site redesign. Application: Field installations where space planning and weight considerations are critical. Feature: Enclosure and switch type described as heavy duty. Business Impact: Improves long-term reliability and reduces replacement cycles. Application: Industrial automation interfaces and heavy-duty DC distribution in solar facilities.
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FAQs
The DCU2101UPM supports main lug connections for #14 to #2 AWG conductors with solid returns. This enables standard PV wiring practices while maintaining a non-fusible, ungrounded configuration for two separate circuits.
Yes. The unit is UL 98B listed and NEC 690 compliant per UL1741, providing regulatory alignment for solar PV installations and other high-voltage DC applications up to 1000 VDC.
The DCU2101UPM uses a NEMA 4 rated enclosure constructed from painted galvanized steel, delivering outdoor durability and protection against dust, water, and inclement weather.
The device is rated for 30A and supports two circuits. It is a non-fusible, ungrounded DC disconnect designed for reliable isolation in solar and other 1000 VDC systems.
Plan for 1000 VDC system compatibility, use the two-circuit configuration to minimize enclosure count, ensure proper mounting in a NEMA 4 space, and reference the Eaton spec sheet for wiring diagrams and dimension tables to avoid field configuration issues.