Eaton DCG1105FXM DC disconnect - NEMA 4X 1000 VDC
Part Number: DCG1105FXM
Quick Summary
Eaton DCG1105FXM is a heavy-duty DC disconnect designed for solar PV systems up to 1000 VDC and 400 A. This solves widespread protection challenges by delivering a rugged, single-circuit solution with a grounded, isolated return and fusible protection. UL Listed certification, a NEMA 4X enclosure, and a 316 stainless steel construction ensure reliability in harsh environments, while the robust design supports outdoor installations. For engineers and procurement teams, this device offers a straightforward path to safer, code-compliant DC switching with predictable maintenance and warranty coverage under Eaton's policy. In short, it combines essential protection with industry-ready features that align with solar deployment KPIs and cost-of-ownership goals.
Product Information
Extended Description
DCG1105FXM Eaton: Eaton heavy duty DC disconnect,400A,NEMA 4X,Grade 316 stainless steel,Fusible,Grounded,1,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG1105FXM
UPC
786685866086
Product Length/Depth
57.5 in
Product Height
12.38 in
Product Width
27.5 in
Product Weight
120.5 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
316 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 - DCG1105FXM
Selling Policy 25-000 - Distribution and Control Products and Services
Feature 400 A amperage rating delivers ample headroom for typical solar DC strings, reducing the need for frequent field upgrades and enabling scalable protection. Business Impact: minimizes system downtime and simplifies protection planning, supporting reliable PV operation in varying irradiance conditions. Application: suitable for 1-circuit, high-current PV arrays, including rapid fuse replacement in the event of a fault. Feature NEMA 4X enclosure with 316 stainless steel construction provides superior corrosion resistance and weather seal, extending service life in outdoor installations. Business Impact: lowers maintenance costs and extends asset life in harsh environments. Application: rooftop and ground-mounted solar sites with exposure to moisture, salt spray, or industrial atmospheres. Feature Fusible protection reduces arc energy and provides selective protection, improving safety margins and simplifying coordination with upstream protective devices. Application: critical for fusion wiring schemes in DC photovoltaic applications. Feature Isolated return and grounded system enhance fault clarity and quick isolation during servicing, reducing the likelihood of shared fault paths. Business Impact: improves safety for technicians and supports accurate fault diagnostics. Application: DC PV protection schemes requiring clear ground reference. Feature UL Listed certification confirms compliance with downstream electrical safety requirements, while the 316 stainless enclosure and corrosion resistance address industry expectations for durability. Application: industrial solar deployments requiring formal certification and long-term reliability. Overall, the DCG1105FXM delivers a balanced mix of protection, reliability, and ease-of-installation that aligns with industry standards and project timelines.
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FAQs
Installers should plan for a single 400 A circuit with a 1000 VDC rating, ensuring appropriate clearance around the enclosure for ventilation and safe access to fusible elements. Mounting should utilize the 316 stainless steel NEMA 4X enclosure to resist outdoor exposure, and the wiring should respect isolation and grounded return requirements for a compliant solar protection network.
A 1000 VDC rating supports modern PV strings that operate at higher voltages, reducing conductor count and enabling longer string lengths. This rating, combined with fusible protection and isolated return, enhances fault handling and safety while ensuring compatibility with typical PV inverters and combiner boxes.
Yes. The DCG1105FXM uses a NEMA 4X enclosure crafted from 316 stainless steel, providing excellent corrosion and weather resistance. This makes it suitable for outdoor rooftop installations, exposed industrial sites, and other harsh environments where reliability and longevity are critical.
The DCG1105FXM is UL Listed, signaling compliance with recognized safety standards for electrical equipment. This certification is essential for code compliance, insurance, and customer qualification in industrial and solar installations, ensuring the product meets established protection and performance requirements.
The fusible protection enables selective, easier fault isolation and reduces arc energy, which can minimize downtime and maintenance costs. Coupled with durable materials and a stable 1-circuit configuration, the device supports higher system availability and a clearer path to return on investment for solar projects.