Eaton DCG2104FXM DC Disconnect - NEMA 4X, 1000 VDC
Part Number: DCG2104FXM
Quick Summary
DCG2104FXM heavy duty DC disconnect provides safe, code-compliant isolation for solar photovoltaic systems. This device helps facilities reliably isolate DC circuits in harsh outdoor environments, reducing arc-flash risk during maintenance. It carries NEC 690 compliance per UL 1741 and UL 98B certifications, ensuring performance under utility-scale PV deployments. The rugged, 316 stainless steel enclosure provides corrosion resistance in exposed installations, while the fusible protection and isolated return simplify wiring and troubleshooting. With 200 A capacity and 1000 VDC rating, it supports large-scale solar arrays and energy-storage integrations, delivering long-term reliability and lower total cost of ownership. For installers, the modular connection options and documented warranty streamline procurement and field setup, aligning with modern solar protection and industrial-grade DC control needs.
Product Information
Extended Description
DCG2104FXM Eaton: Eaton heavy duty DC disconnect,200A,NEMA 4X,Grade 316 stainless steel,Fusible,Grounded,LC: In 300 MCM-#6 out 300 MCM-#6. SR: in 300 MCM-#6 out 300 MCM-#6. EG: in #4-#14 AWG out 1/0-#14,2,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG2104FXM
UPC
786685625492
Product Length/Depth
57.47 in
Product Height
12.43 in
Product Width
24.12 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
NEC 690 per UL 1741 UL 98B
Type
DC disconnect/grounded system
Amperage Rating
200 A
Number of circuits
2
Ground
Grounded
Maximum voltage
1000 VDC
NEMA rating
NEMA 4X
Protection
Fusible
Application
Solar
Main lug wire size
LC: In 300 kcmil-#6 out 300 kcmil-#6. SR: in 300 kcmil-#6 out 300 kcmil-#6. EG: in #4-#14 AWG out 1/0-#14
System voltage
1000 VDC
Voltage rating
1000 VDC
Series
DC photovoltaic applications
Enclosure
NEMA 4X
Enclosure material
316 stainless steel
Fuse configuration
Fusible
Isolation
Isolated return
Switch type
Heavy duty DC photovoltaic systems
Protection
Fusible
Feature: 200 A, 2 circuits with fusible protection and grounded, isolated return. Business Impact: Enables safe, code-compliant DC isolation for high-current solar installations, reducing arc-flash risk and facilitating quicker maintenance. Application: Large PV arrays and energy-storage systems where robust protection and reliable disconnection are critical. Feature: NEMA 4X stainless steel enclosure (316 stainless steel). Business Impact: Provides superior corrosion resistance and outdoor durability, extending service life in harsh environments and coastal installations. Application: Outdoor solar rooftops and harsh industrial settings. Feature: Fusible protection and isolated return configuration. Business Impact: Simplifies fault isolation and improves fault-clearing performance, lowering downtime and maintenance costs. Application: PV systems requiring clear, predictable shutdown behavior. Feature: 1000 VDC system voltage rating and two-lug/three-terminal compatibility. Business Impact: Supports utility-scale and large residential installations with flexible wiring options, reducing field rewiring time. Application: DC PV circuits up to 1000 V, including battery storage tie-ins. Feature: Main lug termination options LC, SR, and EG with specified wire sizes. Business Impact: Broadens compatibility with feeder and branch conductor inventories, speeding installation and reducing stock variety. Application: Field terminations for LC: 300 kcmil-#6, SR: 300 kcmil-#6, EG: #4-#14 AWG in to 1/0-#14 out. Feature: Meets NEC 690 per UL 1741 UL 98B standards. Business Impact: Regulatory compliance reduces project risk during commissioning and inspections, supporting faster project approvals. Application: Solar PV and related electrical protection in commercial and industrial facilities. Insight: For engineers, this DC disconnect pairs robust physical protection with flexible wiring for diverse PV configurations, enabling faster deployment and predictable long-term performance in real-world environments.
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FAQs
The DCG2104FXM is designed for solar PV applications up to 1000 VDC and offers a 200 A rating across two circuits. It uses fusible protection with a grounded, isolated return and supports LC SR EG termination options, enabling flexible integration with large-scale arrays and energy-storage systems.
This disconnect is specified with NEC 690 compliance per UL 1741 and UL 98B, ensuring proper isolation, safe operation, and electrical protection for PV systems. The NEMA 4X enclosure plus 316 stainless steel construction further supports outdoor durability and regulatory conformity during inspections.
Main lug terminations include LC, SR, and EG. LC is rated for In 300 kcmil-#6 out 300 kcmil-#6, SR uses the same conductor size, and EG accepts smaller feeders like #4-#14 AWG to 1/0-#14. This versatility supports feeders and branch circuits with varied conductor inventories.
Yes. The DCG2104FXM uses a NEMA 4X enclosure manufactured from 316 stainless steel, delivering superior corrosion resistance and outdoor durability, suitable for rooftop, coastal, and other harsh environments often encountered in PV installations.
The device’s rugged construction, 200 A rating, 1000 VDC capability, and documented warranty support longer service life with minimal preventive maintenance. By reducing downtime, simplifying wiring, and ensuring code compliance, it contributes to faster project completion and a lower total cost of ownership over the system lifecycle.