Eaton DCU1063UWM DC Disconnect - 600 VDC, NEMA 4X
Part Number: DCU1063UWM
Quick Summary
DCU1063UWM is a heavy‑duty DC disconnect designed for solar PV systems and ungrounded DC circuits. This unit addresses common field challenges—protecting wiring, withstanding harsh environments, and simplifying maintenance—by combining a rugged 304 stainless steel enclosure with a proven 100 A, 1‑circuit configuration. It carries UL 98B and NEC 690 per UL 1741 certifications, and is rated for 600 VDC with a NEMA 4X enclosure, making it suitable for outdoor installations. By delivering reliable, code‑compliant performance in a compact footprint, it reduces install time and service intervals. For engineers and procurement teams, the DCU1063UWM offers proven durability and predictable lifecycle costs in solar, data centers, and industrial power systems.
Product Information
Extended Description
DCU1063UWM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,100A,NEMA 4X,Grade 304 stainless 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
DCU1063UWM
UPC
786685557083
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
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
100A
Number of circuits
1
Ground
Ungrounded
Maximum voltage
600 VDC
NEMA rating
NEMA 4X
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 4X
Enclosure material
304 stainless steel
Fuse configuration
Non-fusible
Switch type
Heavy duty
Protection
Non-fusible
Feature: 100 A, 1‑circuit, non‑fusible DC disconnect. Business Impact: Enables safer, simplified wiring with clear isolation points, reducing field fault risk and downtime. Application: Ideal for solar PV arrays where a single, robust disconnect is required for routine maintenance and emergency shutdowns. Feature: Ungrounded system design. Business Impact: Minimizes neutral referencing issues and simplifies bonding schemes in DC power distribution. Application: Common in solar installations and other ungrounded DC applications. Feature: NEMA 4X enclosure with 304 stainless steel. Business Impact: Delivers corrosion resistance and weatherproof protection, lowering maintenance costs in outdoor or harsh environments. Application: Outdoor solar farms and industrial rooftops. Feature: 600 VDC rating and 600 VDC per pole. Business Impact: Supports higher-voltage DC strings, improving system scalability and reducing conduit runs. Application: Utility-scale and commercial PV projects. Feature: Compatible lug configuration #14-1/0 AWG. Business Impact: Streamlines wiring installation and ensures solid, repeatable terminations. Application: Common PV cabling sizes for control and DC distribution. Feature: UL 98B, NEC 690 per UL 1741 certifications. Business Impact: Ensures regulatory compliance, simplifying adherence to code during audits. Application: Critical for approved solar installations and institutional projects. Feature: Compact footprint with practical dimensions and 24 lb weight. Business Impact: Easier handling, mounting, and service while maximizing enclosure utilization. Application: Confined spaces and roof-mounted installations. Feature: Warranty per Eaton policy (one year from installation or eighteen months from shipment). Business Impact: Reduces risk and lifecycle cost through manufacturer-backed support. Application: Procurement and long-term maintenance planning.
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FAQs
The DCU1063UWM is designed as a single‑circuit, non‑fusible DC disconnect rated for 100 A with #14‑1/0 AWG lug capacity. It uses a rugged 304 stainless steel NEMA 4X enclosure, suitable for outdoor solar installations. For optimal performance, reference the Eaton dimension tables to confirm compatible configurations and mounting clearances during site planning.
Key specs include a 100 A amperage rating, 1 circuit, ungrounded configuration, and a 600 VDC maximum voltage. The unit is non‑fusible and rated for solar applications, with lug capacity for #14‑1/0 AWG conductors and a 304 stainless steel NEMA 4X enclosure, ensuring robust protection and ease of wiring in PV systems.
Yes. The enclosure is NEMA 4X and made of 304 stainless steel, providing weatherproof and corrosion‑resistant performance in outdoor environments. Its ungrounded DC design and 600 VDC rating make it fit for outdoor solar array DC distribution, while UL and NEC certifications support regulatory compliance in real‑world deployments.
The DCU1063UWM carries UL 98B and NEC 690 per UL 1741 certifications, aligning with industry safety and performance requirements for DC power systems in solar installations. These certifications help ensure code compliance during audits and project approvals.
The unit’s stainless steel construction and non‑fusible design reduce corrosion concerns and maintenance needs in harsh environments, contributing to lower lifecycle costs. A one‑year warranty (per Eaton policy 25‑000) from installation or 18 months from shipment provides additional risk mitigation and predictable support for long‑term operation.