Eaton DCU1061FWM DC Disconnect - NEMA 4X Fusible
Part Number: DCU1061FWM
Quick Summary
DCU1061FWM is a heavy-duty DC disconnect designed for ungrounded solar PV systems. Engineers often struggle with reliable isolation in corrosive or wet locations; this unit delivers robust protection. It is certified for NEC 690 per UL 1741 and UL 98B, with a NEMA 4X, 304 stainless steel enclosure. This rugged enclosure resists harsh outdoor conditions while keeping electrical connections protected. The product supports a 30 A rating and a 600 VDC capability, combining safe, reliable DC isolation with long-term lifecycle cost savings for solar projects. The integrated fusible configuration adds an extra margin of protection in fault conditions.
Product Information
Extended Description
DCU1061FWM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,30A,NEMA 4X,Grade 304 stainless steel,Fusible,Ungrounded,#14-#2 AWG lug capacity, #14-1/0 AWG solid return,600 Vdc,1,DC Photovoltaic Applications
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU1061FWM
UPC
786685557090
Product Length/Depth
10.22 in
Product Height
19.08 in
Product Width
8.76 in
Product Weight
21 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.
Type
DC disconnect/ungrounded system
Amperage Rating
30A
Number of circuits
1
Ground
Ungrounded
Maximum voltage
600 VDC
NEMA rating
NEMA 4X
Protection
Fusible
Application
Solar
Main lug wire size
#14-#2 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
Fusible
Switch type
Heavy duty
Protection
Fusible
Feature: The DCU1061FWM is a heavy-duty DC disconnect configured for a single ungrounded circuit. Business Impact: 30 A rating with fusible protection delivers reliable DC isolation, reducing arc-flash exposure in PV arrays. Application: Ideal for solar installations where ungrounded systems require a robust disconnect and straightforward service access. Feature: NEMA 4X enclosure in 304 stainless steel ensures corrosion resistance and weather sealing. Business Impact: extends service life in outdoor, dusty, or salty environments, lowering maintenance cost. Application: suitable for outdoor rooftop and ground-mount PV installations. Feature: 600 VDC maximum rating with 30A capacity. Business Impact: supports modern PV strings and reduces the need for additional DC subassemblies in compact layouts. Application: utility-scale and commercial solar projects. Feature: Main lug capacity for #14-#2 AWG lug and #14-1/0 AWG solid return. Business Impact: simplifies field wiring and reduces installation time, improving project schedules. Application: on-site wiring for quick, compliant terminations. Feature: Certifications include NEC 690 per UL 1741 and UL 98B; Warranty aligns with Eaton policy. Business Impact: ensures regulatory compliance and predictable service life while providing a clear, documented warranty path. Application: procurement and maintenance planning in regulated solar environments. Feature: Product dimensions and weight (10.22 in depth, 8.76 in width, 19.08 in height, 21 lb) support accurate enclosure planning. Business Impact: avoids space overruns and ensures compatibility with existing racks and mounting provisions. Application: system design and equipment layout in both new builds and retrofits.
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FAQs
Yes. The unit supports a single ungrounded circuit with lug capacity for #14-#2 AWG and #14-1/0 AWG solid return, making it compatible with typical PV conductors. Its 30 A rating and 600 VDC capability align with standard solar string configurations, while the 304 stainless steel NEMA 4X enclosure provides durable outdoor performance.
DCU1061FWM is certified under NEC 690 per UL 1741 and UL 98B, ensuring compliance for solar DC isolation and enclosure integrity. These certifications matter because they validate safe operation in PV environments, support regulatory adherence, and streamline approval processes for commercial installations.
The enclosure is 304 stainless steel with a NEMA 4X rating, providing excellent corrosion and weather resistance. This makes the unit suitable for outdoor installations, including rooftop and exposed outdoor locations, while maintaining enclosure integrity during rain, dust, and humidity exposure.
Key specs include a 30 A amperage rating, 600 VDC maximum voltage per pole, 1 circuit, and fusible protection. The device is designed for ungrounded DC systems in solar applications, delivering reliable isolation while accommodating relevant wiring sizes and a robust fault-protection approach.
Eaton provides a warranty policy aligned with policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This warranty covers manufacturing defects and supports responsive post-sale assistance, aiding total cost of ownership considerations for solar projects.