Eaton DCU1065FXM DC Disconnect - NEMA 4X, 316SS
Part Number: DCU1065FXM
Quick Summary
DCU1065FXM is an Eaton heavy-duty DC disconnect engineered for solar photovoltaic applications. This design addresses the common challenges of outdoor reliability, safe ungrounded switching, and durable enclosure sealing faced by engineers and procurement teams. It carries UL Listed certification and a NEMA 4X enclosure in 316 stainless steel, delivering corrosion resistance and long-term performance in harsh environments. By combining robust protection with straightforward installation, this solution reduces downtime, simplifies system wiring, and supports scalable PV protection across evolving solar projects. In short, it blends premium protection with practical, install-ready design for energy systems that demand reliability.
Product Information
Extended Description
DCU1065FXM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,400A,NEMA 4X,Grade 316 stainless steel,Fusible,Ungrounded,600 Vdc,1,DC Photovoltaic Applications
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU1065FXM
UPC
786685865881
Product Length/Depth
12.42 in
Product Height
57.47 in
Product Width
24.12 in
Product Weight
111.5 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 Listed
Type
DC disconnect/ungrounded system
Amperage Rating
400 A
Number of circuits
1
Ground
Ungrounded
Maximum voltage
600 VDC
NEMA rating
NEMA 4X
Protection
Fusible
Application
Solar
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
Double Up on Safety
Double Up on Safety
Eaton Specification Sheet - DCU1065FXM
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Fusible DC disconnect rated at 400 A with 1 circuit and 600 VDC per pole. Business Impact: Integrates critical protection into the switchgear, reducing part counts and minimizing wiring complexity, which translates to faster commissioning and lower field risk. Application: Solar PV arrays and ungrounded DC systems where compact, reliable protection is required. Feature: NEMA 4X enclosure with 316 stainless steel construction. Business Impact: Delivers superior corrosion resistance and ingress protection for outdoor installations, extending service life and lowering maintenance costs. Application: Rooftop enclosures, outdoor electrical rooms, and corrosive environments. Feature: UL Listed certification and rugged build. Business Impact: Ensures regulatory compliance and predictable performance, supporting audits and safe operation under harsh site conditions. Application: Industrial solar facilities, utility-scale PV projects, and field deployments requiring proven safety standards. Feature: Defined footprint and mounting compatibility. Business Impact: Predictable installation planning with exact dimensions (12.42 in depth, 24.12 in width, 57.47 in height) and weight (111.5 lb) to fit existing cabinets or modular enclosures. Application: Retrofit projects and new builds where space and weight budgets matter. Feature: 600 VDC per pole, fusible protection, and 1 circuit configuration. Business Impact: Enhances system protection against fault events while simplifying wiring schemes and maintenance routines. Application: Solar DC protection in ungrounded system architectures requiring robust, single-circuit protection. Additional Insight: The DC Photovoltaic Applications series is designed for outdoor solar installations with a focus on reliability, ease of installation, and long service life, helping teams meet performance targets without over-constraining enclosure strategies.
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FAQs
The DCU1065FXM is designed for integration into common solar DC protection schemes. With a 400 A fusible disconnect, 1 circuit configuration, and 600 VDC per pole, it fits standard panel and cabinet layouts. The NEMA 4X enclosure and 316 stainless steel construction support outdoor installations, while UL Listing confirms compliance with typical solar project specifications.
The unit provides a 400 A amperage rating, supports 1 circuit, and operates at a maximum of 600 VDC per pole. It uses a fusible protection scheme, aligning with PV array protection strategies and simplifying fuse sizing, replacement, and maintenance workflows in solar applications.
Yes. The enclosure is NEMA 4X rated and built from 316 stainless steel, offering excellent corrosion resistance and weather sealing for outdoor use. UL Listed certification further validates performance under field conditions, making it a dependable choice for rooftop, ground-mounted, or outdoor PV installations.
This model is UL Listed and features a NEMA 4X enclosure with a 316 stainless steel body. The combination of corrosion resistance and listed safety credentials supports compliance in most industrial and commercial solar projects, while the fusible protection aligns with common electrical protection standards for PV systems.
Maintenance is typically low due to the sealed, rugged enclosure and fuse-protected design, reducing field servicing needs. The unit’s UL Listed status and durable stainless steel construction contribute to longer service life in outdoor environments, delivering favorable total cost of ownership for solar projects and improved system uptime.