Eaton DCU1063UPM DC Disconnect - UL 1741/NEC 690
Part Number: DCU1063UPM
Quick Summary
DCU1063UPM is a heavy-duty DC disconnect designed for solar PV applications. Engineers often struggle to isolate ungrounded DC circuits safely in outdoor environments while maintaining code compliance and system uptime. The unit carries NEC 690 per UL 1741 and UL 98B certifications, and it features a NEMA 4-rated enclosure for weather resistance against dust, rain, and temperature swings. By delivering a 600 VDC, 100 A, one-circuit solution with non-fusible protection and robust galvanized steel construction, it integrates smoothly with standard PV wiring, helps reduce maintenance costs, and strengthens overall PV protection strategies.
Product Information
Extended Description
DCU1063UPM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,100A,NEMA 4,Painted steel,Non-fusible,Ungrounded,#14-1/0 AWG lug capacity, #14-1/0 AWG solid return,600 Vdc,1,DC Photovoltaic Applications
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU1063UPM
UPC
786685557021
Product Length/Depth
25.5 in
Product Height
9 in
Product Width
13.25 in
Product Weight
24 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
100A
Number of circuits
1
Ground
Ungrounded
Maximum voltage
600 VDC
NEMA rating
NEMA 4
Protection
Non-fusible
Application
Solar
Main lug wire size
#14-1/0 AWG lug capacity, #14-1/0 AWG solid return
System voltage
600 VDC per pole
Voltage rating
600 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: 100 A amperage rating with a single circuit simplifies the protection strategy for a dedicated PV string or feeder. The business impact is clearer isolation, reduced downtime, and streamlined maintenance because field technicians work with a single, clearly labeled disconnect. This is ideal for solar installations where rapid emergency shutdowns and straightforward wiring are essential. Feature: Non-fusible, ungrounded design eliminates fuse management, reducing spare parts inventory and field risk while delivering straightforward isolation. Application: Ideal for ungrounded DC systems in outdoor PV configurations. Feature: 600 VDC rating per pole with a 600 VDC system voltage supports common solar arrays and module combinations. Business impact: enables safe, scalable protection as system size grows. Feature: NEMA 4 enclosure with painted galvanized steel provides durable outdoor protection against dust, water ingress, and corrosion. Application: reliable service in rooftop or ground-mounted PV installations. Feature: Main lug capacity for #14-1/0 AWG up to 1 circuit ensures compatibility with typical PV conductors and solid return terminations. Business impact: reduces wiring complexity and simplifies installation. Feature: Dimensions 25.5 in L × 13.25 in W × 9 in H and 24 lb weight offer a manageable footprint for integration into standard electrical spaces. Application: straightforward mounting and service access in field installs. Certifications: NEC 690 per UL 1741, UL 98B, and NEMA 4 enclosure standard ensure compliance and dependable outdoor performance.
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FAQs
DCU1063UPM is built for a single-circuit solar DC protection setup, rated at 100 A and 600 VDC. It supports #14-1/0 AWG lugs, ungrounded conductors, and a non-fusible design, making it straightforward to integrate with common PV strings or feeders while meeting NEC 690 requirements.
Key ratings include 100 A amperage, 1 circuit, ungrounded configuration, 600 VDC maximum voltage per pole, non-fusible protection, and a NEMA 4 enclosure. These specifications align with typical solar PV installations and ensure safe, code-compliant isolation in outdoor environments.
Yes. The DCU1063UPM features a NEMA 4 painted galvanized steel enclosure designed for outdoor exposure, 600 VDC operation per pole, and UL/NEC-compliant protection for solar PV applications, delivering reliable performance in rooftop and ground-mounted PV configurations.
DCU1063UPM carries NEC 690 compliance per UL 1741 and UL 98B with a NEMA 4 enclosure. These certifications matter because they indicate suitability for PV protection, safe operation in outdoor conditions, and adherence to critical electrical safety and performance standards.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. This coverage aligns with Eaton's policy 25-000 and supports service life planning, field replacement cycles, and ongoing performance reliability for solar DC protection equipment.