Eaton DCU3063UXM DC Disconnect - NEMA 4X 600VDC
Part Number: DCU3063UXM
Quick Summary
The Eaton DCU3063UXM DC disconnect is a rugged, ungrounded switch designed for solar PV applications. Designers face wiring complexity and outdoor exposure that can drive downtime and corrosion; this unit addresses those challenges with a corrosion-resistant, heavy-duty enclosure and proven isolation. The product carries UL 98B listing and NEC 690 compliance per UL 1741, with a NEMA 4X stainless steel enclosure that withstands harsh environments. With 100A capacity across three circuits and support for #14-1/0 AWG conductors, it scales to mid-size PV installations. In field usage, this translates to faster installation, lower maintenance costs, and reliable lifecycle performance for energy projects.
Product Information
Extended Description
DCU3063UXM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,100A,NEMA 4X,Grade 316 stainless steel,Non-fusible,Ungrounded,#14-1/0 AWG lug capacity, #14-1/0 AWG solid return,600 Vdc,3,DC Photovoltaic Applications
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU3063UXM
UPC
786685557625
Product Length/Depth
10.22 in
Product Height
24.95 in
Product Width
16.13 in
Product Weight
37 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
3
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
316 stainless steel
Fuse configuration
Non-fusible
Switch type
Heavy duty
Protection
Non-fusible
Feature: Non-fusible, three-circuit DC disconnect rated at 100A per pole. Business impact: simplifies protection schemes while reducing potential fault points, improving system reliability and maintenance intervals. Application: ideal for solar PV applications and DC distribution where fast, safe isolation is priority. Feature: NEMA 4X enclosure made from 316 stainless steel. Business impact: unmatched outdoor durability and corrosion resistance in rooftop or yard installations, lowering enclosure replacement and service costs. Application: endure harsh weather, salt spray, and industrial environments. Feature: 600 VDC maximum voltage per pole; voltage rating 600 VDC. Business impact: aligns with NEC 690 requirements and safe operation across PV strings; reduces creepage and arc risk. Application: suitable for central DC disconnects in utility-scale or commercial PV projects. Feature: Main lug capacity for #14-1/0 AWG; solid return capability. Business impact: broad conductor compatibility minimizes field termination issues and enables quicker installs. Application: common PV conductors and battery feed lines. Feature: UL 98B certification and NEC 690 per UL 1741. Business impact: regulatory alignment reduces risk, accelerates approvals, and supports project documentation. Application: critical for solar installation code compliance and building permits. Feature: Dimensions 24.95 in height, 16.13 in width, 10.22 in depth; 37 lb weight. Business impact: manageable footprint for wall or pedestal mounting while preserving service access. Application: suitable for equipment rooms and outdoor cabinets in industrial facilities. Feature: One-year warranty per Eaton policy. Business impact: lifecycle risk reduction and predictable maintenance planning with vendor support. Application: long-term solar DC protection assets in demanding environments.
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FAQs
The DCU3063UXM is designed for solar PV systems and DC distribution where ungrounded, non-fusible protection is required. With three circuits and a 100A per-pole rating, it supports mid-size rooftop and ground-mounted PV arrays, simplifying wiring layouts and enabling rapid isolation during maintenance.
Key specs include 100A per pole, 3 circuits, 600 VDC maximum per pole, and a non-fusible design. These ensure robust isolation for solar DC networks, meet NEC 690 guidelines, and accommodate common PV conductors (#14-1/0 AWG). The result is reliable protection with straightforward installation and reduced fault propagation.
Yes. The unit carries UL 98B certification and NEC 690 compliance as defined via UL 1741. This alignment supports code approvals, safer electrical discipline in solar projects, and documentation readiness for inspections and customer audits.
Absolutely. The enclosure is NEMA 4X rated and constructed from 316 stainless steel, delivering strong outdoor durability and corrosion resistance. This makes it well-suited for rooftop, yard, or coastal installations where exposure to weather and salt spray is a concern.
The non-fusible design, rugged construction, and extended enclosure life translate to lower maintenance frequency and fewer field-termination issues. Coupled with a one-year Eaton warranty, customers typically experience faster installation, reduced downtime, and predictable lifecycle costs for solar DC protection assets.