Eaton DCG4064FRM DC Disconnect - NEMA 3R 600 VDC
Part Number: DCG4064FRM
Quick Summary
Eaton DCG4064FRM is a heavy-duty DC disconnect for solar PV systems. Operators and installers often need reliable isolation in outdoor, high-current DC circuits while maintaining safety and compliance. This unit carries UL 98B and NEC 690 per UL 1741 certifications, with a NEMA 3R enclosure that withstands weather exposure. The grounded, isolated-return design with fusible protection delivers robust safety margins and predictable maintenance. For procurement and engineering teams, the four-pole configuration, 200 A rating, and 600 VDC capability align with commercial and utility-scale solar deployments, while compatible wiring options simplify installation and reduce field errors. In short, it combines rugged construction with code-driven protection to support safer, more efficient solar electric installations.
Product Information
Extended Description
DCG4064FRM Eaton: Eaton heavy-duty DC disconnect,200A,Solar,Painted galvanized steel,Fusible,Grounded,In/Out(LC): 300 MCM-#6, In/Out(SR): 300 MCM-#6,600 Vdc,NEMA 3R,4,Fusible,Isolated return,Four-pole,DC photovoltaic applications,Single-throw
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG4064FRM
UPC
786685624914
Product Length/Depth
11.63 in
Product Height
35.38 in
Product Width
24.46 in
Product Weight
60 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
Type
DC disconnect/grounded system
Amperage Rating
200 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): 300 kcmil-#6, In/Out(SR): 300 kcmil-#6
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
Isolation
Isolated return
Switch type
Single-throw Heavy duty safety DC photovoltaic systems
Protection
Fusible
Feature: Four-pole construction enables independent control across four circuits, enhancing safety during isolation and service. Benefit: Improves protection coordination and reduces cross-circuit faults, supporting reliable operation of multi-string solar arrays. Application: Ideal for commercial and utility-scale PV installations where discrete string isolation is required. Feature: 200 A amperage rating paired with fusible protection ensures safe fault interruption and predictable thermal performance. Benefit: Higher uptime and reduced fuse replacement costs in daily solar plant maintenance. Application: Suitable for large PV systems demanding robust protection and quick fault clearing. Feature: 600 VDC maximum voltage and 600 VDC per pole capability. Benefit: Enables higher-voltage string configurations with compliant clearances, reducing hardware counts and simplifying system design. Application: Utility-scale and rooftop PV projects with elevated DC bus voltages. Feature: NEMA 3R outdoor enclosure and painted galvanized steel construction. Benefit: Weather-resistant protection lowers corrosion risk and expands installation locations without indoor housings. Application: Outdoor installations in varied climates and environments. Feature: Isolated return and grounded system configuration. Benefit: Improves fault isolation, reduces risk of neutral-ground faults, and supports safer maintenance. Application: Solar DC protection where reliable safety margins are essential. Feature: Large main lug connections (In/Out LC: 300 kcmil-#6, In/Out SR: 300 kcmil-#6). Benefit: Simplifies field terminations, minimizes voltage drop, and reduces labor during wiring. Application: New or retrofit PV configurations with heavy conductor needs. Feature: Four-pole design with clear 600 VDC rating and fusible protection. Benefit: Enhances system reliability, enables precise shutoff across all DC paths, and supports NEC/UL compliance. Application: PV arrays, battery storage interfaces, and other high-current DC applications.
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FAQs
DCG4064FRM is designed for 600 VDC systems and supports four poles with fusible protection. It accepts In/Out LC wiring up to 300 kcmil-#6 and provides isolated return and grounded operation. When planning, verify string voltages, fault current, and enclosure rating (NEMA 3R) to ensure compliant installation in outdoor environments.
The device is UL 98B listed with NEC 690 considerations per UL 1741, which covers photovoltaic applications. NEMA 3R enclosure ensures outdoor durability, while the grounded, fusible configuration aligns with safe DC protection requirements for solar installations.
Yes. It is a four-pole unit rated for 200 A with fusible protection. This arrangement supports multiple DC strings and allows independent isolation per pole. When designing, account for conductor sizing (up to 300 kcmil-#6) and ensure proper cooling and ventilation within the enclosure.
Main lugs accept LC and SR terminations up to 300 kcmil-#6. This family of lugs minimizes conductor count and reduces voltage drop across each circuit. Ensure correct torque values per the Eaton specification sheet and verify that conductors are compatible with the panel’s mounting footprint and enclosure cavity.
Eaton provides a one-year warranty from installation or 18 months from shipment, whichever occurs first. Regular maintenance includes inspecting fusible links, confirming terminal torque, and verifying enclosure seals for outdoor use. The robust NEMA 3R enclosure and grounded, isolated-return design help minimize maintenance disruptions and extend service life in harsh environments.