Eaton DCG1105FWM DC Disconnect - NEMA 4X, 1000 Vdc
Part Number: DCG1105FWM
Quick Summary
The Eaton DCG1105FWM heavy-duty DC disconnect is designed to safely isolate 1000 VDC lines in solar PV installations. This unit helps prevent arc flash exposure and enables controlled shutdowns during maintenance. It is built to endure outdoor, industrial environments while delivering reliable current interruption. UL Listed with a NEMA 4X enclosure and a 304 stainless steel body, it combines toughness with corrosion resistance. For engineers and procurement teams, this disconnect offers rugged electrical protection, grounded operation, and isolated return for safer, code-compliant PV systems, reducing downtime and improving system reliability across commercial and utility-scale projects.
Product Information
Extended Description
DCG1105FWM Eaton: Eaton heavy duty DC disconnect,400A,NEMA 4X,Grade 304 stainless steel,Fusible,Grounded,1,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG1105FWM
UPC
786685866079
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
1
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
Isolation
Isolated return
Switch type
DC photovoltaic systems Heavy duty
Protection
Fusible
Double Up on Safety
Double Up on Safety
Eaton Specification Sheet - DCG1105FWM
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The 400 A amperage rating supports high-current PV strings, enabling safe, single-circuit isolation without frequent component swaps. This reduces maintenance time and improves protection against fault propagation in solar arrays. Application: suitable for large-scale PV installations where reliable current interruption is critical. Feature → Business Impact → Application: NEMA 4X enclosure and 304 stainless steel construction provide outdoor corrosion resistance, enabling year-round performance in exposed environments. Application: rooftop and ground-mounted solar projects with harsh weather exposure. Feature → Business Impact → Application: Fusible protection with isolated return and grounded configuration enhances safety and simplifies electrical code compliance. Application: DC photovoltaic systems requiring robust fault isolation. Feature → Business Impact → Application: 1000 VDC system rating supports modern high-voltage PV strings, expanding design flexibility. Application: utility-grade and commercial PV deployments. Feature → Business Impact → Application: UL Listed certification streamlines procurement and reduces QA overhead. Application: regulated markets and spec-driven projects. Feature → Business Impact → Application: Compact enclosure footprint with defined dimensions supports straightforward installation and service access. Application: retrofit or new builds where space planning is critical.
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FAQs
The DCG1105FWM is designed for solar PV systems up to 1000 VDC and 400 A, offering single-circuit, fusible protection in a rugged NEMA 4X stainless steel enclosure. It is ideal for outdoor rooftop arrays, carport solar installations, and utility-scale projects where reliable DC isolation and ease of maintenance matter most.
Key specs include a 400 A amperage rating, 1 circuit, grounded configuration with an isolated return, 1000 VDC maximum voltage, and fusible protection. It is intended for DC photovoltaic applications and is UL Listed, with a NEMA 4X enclosure and 304 stainless steel construction for durability.
Yes. The NEMA 4X enclosure and 304 stainless steel body provide excellent outdoor corrosion resistance, enabling reliable operation in harsh weather. It is rated for up to 1000 VDC and 400 A, making it a solid choice for outdoor solar, carport, and utility-scale PV configurations.
The unit is UL Listed, with a NEMA 4X environmental rating and a stainless steel enclosure. These certifications support code compliance, safe operation in harsh environments, and easier procurement in regulated markets.
Fusible protection minimizes fault escalation and simplifies replacement of fuses, reducing downtime. The corrosion-resistant stainless steel enclosure lowers long-term maintenance costs in outdoor spaces, while its durable construction and UL-listed status help ensure reliable performance and faster project approvals, contributing to a favorable total cost of ownership.