Eaton DCU1063FXM DC Disconnect - NEMA 4X 316 SS
Part Number: DCU1063FXM
Quick Summary
DC disconnects such as the Eaton DCU1063FXM provide safe, ungrounded DC isolation for solar photovoltaic installations and other high‑voltage DC systems. This heavy‑duty unit helps prevent arc flash and provides reliable service in outdoor or washdown environments, reducing downtime and maintenance costs. In addition to its rugged 316 stainless steel enclosure and NEMA 4X protection, it carries UL 98B and NEC 690 conformance per UL 1741, supporting compliance for utility-scale and commercial PV projects. The design also supports up to 600 VDC and a 100 A rating with single‑circuit capability, ensuring a compact, scalable solution for growing solar arrays. For procurement teams, this translates to streamlined stocking, safer installation, and longer service life for year‑round performance.
Product Information
Extended Description
DCU1063FXM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,100A,NEMA 4X,Grade 316 stainless steel,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
DCU1063FXM
UPC
786685557175
Product Length/Depth
25.5 in
Product Height
9 in
Product Width
13.25 in
Product Weight
27 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
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
Fusible
Switch type
Heavy duty
Protection
Fusible
Feature: Heavy‑duty DC disconnect with fusible protection and 316 stainless steel enclosure. Business Impact: Delivers superior corrosion resistance and durable outdoor performance, reducing maintenance cycles and replacement costs. Application: Solar PV installations in harsh environments, where reliability and longevity matter. Feature: 100 A amperage rating with 1 circuit capacity and ungrounded system design. Business Impact: Simplifies wiring schematics, minimizes enclosure footprint, and enables scalable DC string configurations. Application: Small to mid‑size PV arrays and industrial DC circuits seeking compact, single‑string protection. Feature: 600 VDC maximum voltage and NEMA 4X protection. Business Impact: Ensures safe operation in damp, dusty, or washdown environments while meeting industrial safety standards. Application: Outdoor solar farms, battery storage facilities, and rugged industrial plants. Feature: Fusible configuration and 316 SS enclosure for UV resistance and theft deterrence. Business Impact: Enhances fire protection and long service life in challenging outdoor settings; lowers replacement risk. Application: Utility‑grade PV projects and harsh outdoor installations. Feature: Compliance and documentation support including UL 98B and NEC 690 per UL 1741. Business Impact: Speeds up regulatory approvals and reduces risk during audits. Application: Commercial and utility PV deployments requiring traceable certifications. Feature: Catalog depth and configuration guidance in dimension tables. Business Impact: Reduces engineering time and procurement ambiguity; drives safer, faster installation. Application: System integrators and electrical contractors planning exact ampere configurations.
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FAQs
The DCU1063FXM is designed for ungrounded DC isolation in solar PV and similar high‑voltage DC applications. It supports a 100 A rating, 1 circuit, and a 600 VDC maximum, with lug capacity for #14-1/0 AWG. Its NEMA 4X enclosure and 316 stainless steel construction enable reliable outdoor installation and easy integration into existing PV arrays.
This unit complies with UL 98B and NEC 690 per UL 1741, ensuring electrical safety and code conformance for PV projects. The enclosure is NEMA 4X, and the product is rated for 600 VDC, with fusible protection to meet industrial protection requirements and support safe, compliant operation.
Yes. The DCU1063FXM features a NEMA 4X enclosure and a 316 stainless steel body designed for outdoor, washdown, and corrosive environments. Its 600 VDC rating and fusible protection provide reliable isolation for solar arrays, minimizing exposure to the elements and reducing maintenance needs.
Eaton’s warranty policy for this product follows 25-000 terms, offering one year from installation or eighteen months from shipment, whichever occurs first. Regular inspection of the fuse configuration and enclosure seals is recommended to maintain protection integrity and ensure continued compliance and performance.
The DCU1063FXM delivers faster installation, safer DC isolation for personnel, and improved reliability in outdoor PV deployments. Its rugged enclosure, high rating, and clear compliance documentation reduce downtime, support regulatory approvals, and extend service life—driving lower lifecycle costs and higher overall project ROI.