Eaton DCG2105FWM DC disconnect/grounded system - NEMA 4X
Part Number: DCG2105FWM
Quick Summary
Eaton DCG2105FWM heavy-duty DC disconnect is engineered for safe isolation in high-voltage solar projects and other 1000 VDC installations. Engineers often wrestle with rugged outdoor enclosures, corrosion resistance, and reliable fuse protection in demanding environments. UL Listed; NEMA 4X enclosure in 304 stainless steel; and a grounded design deliver critical protection across harsh sites. With a 400 A, two-circuit configuration and a purpose-built solar application, this unit simplifies installation, reduces downtime, and supports scalable, compliant PV system builds. It also aligns with industrial procurement goals by offering clear documentation, warranty coverage, and a straightforward maintenance path.
Product Information
Extended Description
DCG2105FWM Eaton: Eaton heavy duty DC disconnect,400A,NEMA 4X,Grade 304 stainless steel,Fusible,Grounded,2,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG2105FWM
UPC
786685866116
Product Length/Depth
12.42 in
Product Height
57.47 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
UL Listed
Type
DC disconnect/grounded system
Amperage Rating
400 A
Number of circuits
2
Ground
Grounded
Maximum voltage
1000 VDC
NEMA rating
NEMA 4X
Protection
Fusible
Application
Solar
System voltage
1000 VDC
Voltage rating
1000 VDC
Series
DC photovoltaic applications
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse configuration
Fusible
Switch type
DC photovoltaic systems Heavy duty
Protection
Fusible
Feature: Heavy-duty DC disconnect enclosure uses 304 stainless steel and a NEMA 4X rating. Business Impact: Provides reliable corrosion resistance and superior ingress protection in outdoor PV installations, reducing maintenance costs and downtime. Application: Ideal for rooftop and ground-mounted solar arrays exposed to weather and contaminants. Feature: 400 A amperage rating with two circuits. Business Impact: Supports scalable PV configurations while preserving safe isolation and fuse protection. Application: Efficiently handles mid-to-large solar installations without upsizing hardware. Feature: Fusible protection with grounded design. Business Impact: Improves arc-flash safety and fault isolation, simplifying compliance with electrical safety standards. Application: Solar DC systems where rapid, secure fuse-based isolation is required. Feature: 1000 VDC system voltage rating. Business Impact: Enables integration with higher voltage PV strings, expanding applicability across modern solar farms. Application: Photovoltaic applications requiring robust performance at elevated voltages. Feature: UL Listed certification. Business Impact: Accelerates procurement and acceptance with recognized safety compliance. Application: Industrial and utility-scale deployments needing validated safety credentials. Feature: Enclosure and installation compatibility. Business Impact: Streamlines field installation with standard dimensions and accessible wiring, reducing on-site time. Application: Service and maintenance teams installing or upgrading DC disconnects in constrained spaces.
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FAQs
The DCG2105FWM is designed for outdoor use with a NEMA 4X enclosure in 304 stainless steel, providing corrosion resistance and protected wiring access. When installing, ensure proper enclosure mounting, maintain clearances for cooling, and comply with 1000 VDC safety requirements. The two-circuit layout supports straightforward wiring and fuse configuration for safe, scalable solar connections.
The 400 A, 2-circuit design offers robust isolation for two DC PV circuits while providing fusible protection to quickly clear faults. This reduces arc flash risk, minimizes energy discharge during faults, and simplifies protection coordination with upstream and downstream gear. It is well-suited for mid-to-large solar arrays requiring reliable, field-serviceable disconnects.
Yes, the DCG2105FWM is UL Listed, indicating compliance with recognized safety standards for electrical equipment. It also features a NEMA 4X enclosure for excellent ingress protection and corrosion resistance, making it suitable for harsh outdoor environments. The grounded design further enhances safety in photovoltaic and other 1000 VDC applications.
This unit is tailored for solar photovoltaic systems, especially where 1000 VDC operation is involved. The 400 A capacity and two circuits support multiple string configurations, while the fusible protection provides reliable fault isolation. Its 304 stainless steel, NEMA 4X enclosure is ideal for outdoor rooftops, carport systems, and utility-scale PV installations.
Maintenance is straightforward: periodically inspect bus connections, replace blown fuses as needed, and verify enclosure seals for weather resistance. The durable stainless steel construction and UL/NEMA certifications help minimize unplanned downtime, while the modular, two-circuit design reduces the need for additional disconnects. Overall, the unit offers predictable lifecycle costs and faster fault isolation that improves system uptime.