Eaton DCG1104FXM DC Disconnect - 1000 VDC NEMA 4X
Part Number: DCG1104FXM
Quick Summary
DCG1104FXM is a heavy-duty DC disconnect that isolates solar PV circuits up to 1000 VDC. Engineers often struggle with safety, reliability, and code compliance in outdoor PV sites. It meets NEC 690 per UL 1741 and UL 98B, and features a NEMA 4X enclosure with 316 stainless steel construction for harsh environments. This design delivers rugged protection, grounded return, and simplified maintenance, supporting fast, compliant installations. For procurement and operations, the combination of robust protection and long-term reliability translates to lower lifecycle costs and fewer field failures in solar, industrial, and utility-scale projects.
Product Information
Extended Description
DCG1104FXM 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-#14,1,Isolated return,DC photovoltaic systems,1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCG1104FXM
UPC
786685625454
Product Length/Depth
35.38 in
Product Height
11.63 in
Product Width
16.54 in
Product Weight
45 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
1
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 amperage rating and 1 circuit configuration. Business Impact: Handles typical solar PV strings with reliable fault isolation, reducing downtime and improving system availability. Application: Suitable for single-string DC photovoltaic installations in commercial and industrial facilities, where uptime is critical. Feature: NEMA 4X enclosure with 316 stainless steel material. Business Impact: Delivers superior corrosion and weather resistance, minimizing maintenance and repainting costs in harsh outdoor environments. Application: Outdoor rooftops, ground-mount arrays, and coastal installations where exposure to moisture and salt is a concern. Feature: Fusible protection with isolated return and grounded configuration. Business Impact: Enhances safety and selective coordination, simplifying compliance with NEC 690 requirements. Application: PV inverters and battery storage integration where precise fault isolation is required. Feature: Flexible main lug wire sizing (LC SR EG) up to 300 kcmil-#6 and 1/0-#14 AWG ranges. Business Impact: Eases field wiring and reduces installation time by accommodating larger feeders and smaller control wiring in a single enclosure. Application: Ready-to-wire solutions for complex PV and DC distribution schemes. Feature: 1000 VDC system and 1-cycle protection strategy. Business Impact: Supports high-voltage PV arrays with dependable interruption performance, improving overall system safety. Application: Utility-grade and large commercial solar projects requiring robust DC disconnects with long service life.
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FAQs
When installing the DCG1104FXM, ensure secure mounting to a solid support surface and verify corrosion resistance for outdoor exposure. Use the LC, SR, or EG lug configurations to match feeder sizes up to 300 kcmil-#6 and control wiring per 1/0-#14 AWG. Confirm enclosure access is protected from weather, and route cables to maintain isolation clearances and maintain engine braking and fault isolation per NEC guidance.
This device provides a 200 A amperage rating with 1 circuit, grounded and isolated return, and a system voltage up to 1000 VDC. It uses fusible protection to enable selective fault isolation, meeting NEC 690 requirements per UL 1741 and UL 98B for PV applications. The 316 stainless steel, NEMA 4X enclosure supports reliable operation in challenging environments.
Yes. The DCG1104FXM is designed for solar PV applications, including grid-tied and off-grid configurations, where high-voltage DC isolation and fault protection are essential. Its 1000 VDC rating and fusible protection facilitate safe interconnections with inverters and energy storage, while its rugged enclosure supports outdoor installation on rooftops or ground-mount arrays.
The device aligns with NEC 690 for PV circuits and conforms to UL 1741 and UL 98B standards, ensuring regulatory compliance for PV power systems. It also features a NEMA 4X enclosure, with 316 stainless steel construction, providing weather and corrosion resistance suited for demanding environments.
The DCG1104FXM's durable stainless steel enclosure and rated components minimize corrosion-related maintenance in outdoor deployments. Fusible protection simplifies fault restoration, reducing downtime. Its straightforward lug configurations and robust construction support long service life, predictable performance, and lower total cost of ownership for solar projects across commercial and industrial sectors.