Eaton DCU3063FPM DC Disconnect - NEMA 4, 600 VDC
Part Number: DCU3063FPM
Quick Summary
DC disconnects from Eaton provide heavy-duty isolation for ungrounded PV systems. This solution helps engineers address safe shutdown, backfeed prevention, and rapid service access in challenging outdoor and rooftop environments. Key certifications include NEC 690 per UL 1741, UL 98B, and NEMA 4 enclosure protection, which support reliable performance in harsh weather and industrial sites. By combining a robust 600 VDC rating with fusible protection, the DCU3063FPM delivers dependable PV protection while reducing downtime and maintenance complexity. For projects seeking scalable, code-compliant solar protection with straightforward installation, this unit aligns with common procurement workflows and long-term ownership value.
Product Information
Extended Description
DCU3063FPM Eaton: Eaton heavy duty DC disconnect,For Ungrounded PV Systems,DC disconnect/ungrounded system,100A,NEMA 4,Painted steel,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
DCU3063FPM
UPC
786685557533
Product Length/Depth
10.22 in
Product Height
24.95 in
Product Width
16.13 in
Product Weight
40 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.
Special features
For Ungrounded PV Systems
Type
DC disconnect/ungrounded system
Amperage Rating
100A
Number of circuits
3
Ground
Ungrounded
Maximum voltage
600 VDC
NEMA rating
NEMA 4
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 4
Enclosure material
Painted galvanized steel
Fuse configuration
Fusible
Switch type
Heavy duty
Protection
Fusible
Feature → Business Impact → Application: Amperage rating of 100A across 3 circuits enables modular PV configurations with precise isolation, improving fault response times and reducing arc-flash exposure on rooftops or utility-connected PV arrays. This directly translates to safer commissioning and faster maintenance cycles in commercial solar installations. Application: rooftop and utility-scale PV projects requiring reliable, point-of-isolation for multiple strings. Feature → Business Impact → Application: NEMA 4 painted galvanized steel enclosure delivers weatherproof protection in outdoor environments, minimizing corrosion risk and enabling durable field service in harsh climates. Application: outdoor PV enclosures, exposed equipment pads, and rooftop installations where weather sealing matters. Feature → Business Impact → Application: Fusible protection provides consistent overcurrent control, limiting fault energy and protecting conductors and components, which lowers replacement costs and extends system life. Application: safety-conscious solar arrays with stringent protection requirements. Feature → Business Impact → Application: 600 VDC per pole maximum voltage and 3 circuits support higher voltage string configurations while maintaining safe isolation, enabling wider system integration and compliance with PV design standards. Application: high-voltage PV strings and mixed-technology solar projects. Feature → Business Impact → Application: Main lug capability for #14-1/0 AWG conductors ensures common PV wiring practices are supported, reducing field rework and simplifying procurement. Application: standard PV conductor sizing and quick field connections. Feature → Business Impact → Application: Compact, rugged footprint with clear labeling facilitates faster installation and routine inspections, lowering total cost of ownership. Application: serviceability in busy electrical rooms and outdoor stations. Catalog Notes remind installers that not all ampere/configuration combinations are available, so dimension tables should be consulted for exact configurations during design. This awareness helps avoid on-site surprises and accelerates final acceptance.
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FAQs
When installing the DCU3063FPM in an ungrounded PV setup, ensure the conductors for main lugs accept #14-1/0 AWG as specified. Verify the enclosure is mounted in a weatherproof location and that wiring paths maintain NEC 690 clearances. Use the fusible protection as designed, and follow the UL 1741/NEMA 4 requirements for outdoor installation to ensure code compliance and safe disconnection during maintenance.
Key specs include 100A amperage rating, 3 circuits, 600 VDC maximum per pole, fusible protection, and NEMA 4 enclosure. These features enable safe isolation of multiple PV strings, mitigate overcurrent events, and provide weather-resistant operation for outdoor installations while meeting NEC 690 and UL 1741 requirements.
Yes. The unit is designed for outdoor use with a NEMA 4 enclosure manufactured from painted galvanized steel, delivering weather resistance and corrosion protection. Its rugged construction and 600 VDC rating make it well-suited for rooftop and ground-mounted PV installations where environmental exposure and reliability are critical.
The DCU3063FPM aligns with NEC 690 per UL 1741 and UL 98B, ensuring compliance for PV system safety and overcurrent protection. These certifications validate reliable performance in solar applications and provide a clear compliance path for electrical inspectors, facilities engineers, and procurement teams evaluating long-term ownership risk.
The fusible protection and robust enclosure reduce fault energy and weather-related degradation, lowering component replacement costs and downtime. The unit’s clear labeling and modular 3-circuit design simplify diagnostics and maintenance, accelerating service responses and supporting a faster return on investment in commercial PV deployments.