Eaton DCG4065FRM DC disconnect - NEMA 3R, 600V
Part Number: DCG4065FRM
Quick Summary
Eaton heavy duty DC disconnect DCG4065FRM provides safe, reliable DC isolation for solar photovoltaic systems. When deploying high amperage DC power, field failures and safety incidents are common pain points, especially in outdoor environments and tight installation spaces. This unit earns confidence with UL Listed certification, a NEMA 3R enclosure, and a robust 600 VDC rating, ensuring protection against weather, dust, and moisture. Designed for scalable PV projects, it offers clear wiring paths, grounded operation, and fusible protection, which reduces fault propagation and maintenance downtime. Pair it with Eaton’s support ecosystem to streamline integration, compliance, and long-term operating costs.
Product Information
Extended Description
DCG4065FRM Eaton: Eaton heavy-duty DC disconnect,400A,Solar,Painted galvanized steel,Fusible,Grounded,In/Out(LC): (1) 750 MCM-1/0 and (1) 600 MCM-#2, In/Out(SR): (2) 750 MCM-1/0,600 Vdc,NEMA 3R,4,Fusible,Four-pole,DC photovoltaic applications,Single-throw
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG4065FRM
UPC
786685865744
Product Length/Depth
26 in
Product Height
11 in
Product Width
57 in
Product Weight
150 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/grounded system
Amperage Rating
400 A
Number of circuits
4
Ground
Grounded
Maximum voltage
600 VDC
NEMA rating
NEMA 3R
Protection
Fusible
Application
Solar
Main lug wire size
In/Out(LC): (1) 750 kcmil-1/0 and (1) 600 kcmil-#2, In/Out(SR): (2) 750 kcmil-1/0
Number of poles
Four-pole
System voltage
600 VDC per pole
Voltage rating
600 VDC
Series
DC photovoltaic applications
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Fusible
Switch type
Heavy duty safety Single-throw DC photovoltaic systems
Protection
Fusible
Four-pole design with fusible protection allows complete isolation of four DC circuits with a single device, reducing fault propagation and speeding maintenance. In practice this translates to safer energization/de-energization cycles and clearer lockout/tagout procedures, essential for solar PV installations and industrial DC power systems. The rugged, painted galvanized steel enclosure provides durable outdoor performance while preserving enclosure integrity against weather and corrosion, improving uptime and reducing replacement costs. Large main-lug wiring capacity supports high-current PV interconnects, minimizing field splices and simplifying installation for LC and SR terminations. UL Listed certification and NEMA 3R rating help meet regulatory and safety requirements, easing compliance during audits and inspections. With four poles, grounded operation, and compatible wiring configurations, the DCG4065FRM integrates smoothly with existing PV arrays and protection schemes, delivering reliable performance and long-term total cost of ownership benefits for solar projects.
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FAQs
The DCG4065FRM is optimized for solar PV installations and other DC power systems requiring safe isolation of 600 VDC circuits. Its four-pole, fusible design supports high-current PV interconnects and outdoor use in a NEMA 3R enclosure, simplifying outdoor deployments and improving safety during servicing.
Key specs include a 400 A amperage rating, 600 VDC maximum voltage per pole, four poles, grounded system, and fusible protection. It supports LC terminations of (1) 750 kcmil-1/0 and (1) 600 kcmil-#2, plus SR terminations of (2) 750 kcmil-1/0, making it suitable for large PV arrays and industrial DC networks.
Yes. It uses a NEMA 3R enclosure constructed from painted galvanized steel, designed for outdoor environments. UL Listed certification further confirms compliance with safety requirements, and its rugged build protects against weather, dust, and moisture while delivering reliable DC isolation for PV systems.
The DCG4065FRM is UL Listed and housed in a NEMA 3R enclosure, enabling use in outdoor solar installations. The combination of fusible protection and four-pole isolation supports safe operation in accordance with typical industry safety standards for PV DC disconnects.
Expect straightforward wiring with LC and SR terminations, large-gauge conductors, and a grounded four-pole design that reduces wiring errors. While upfront costs are outweighed by improved safety, reduced downtime, and easier compliance, plan for outdoor mounting in a suitable location to maximize the 600 VDC rating and long-term reliability.