Eaton DCG1104FWM DC Disconnect - NEMA 4X
Part Number: DCG1104FWM
Quick Summary
DCG1104FWM is a heavy‑duty DC disconnect designed to safely isolate solar PV systems at utility and commercial scales. Engineers often grapple with outdoor exposure, corrosion, and the need for reliable, code‑compliant protection in harsh environments. This unit leverages UL 98B and NEC 690 per UL 1741 requirements, packaged in a rugged NEMA 4X enclosure to resist moisture and dust. Built from 304 stainless steel, it delivers robust protection without compromising wiring flexibility. For buyers prioritizing long service life, straightforward installation, and consistent performance, this device pairs strong protection with practical, field‑ready features that support a quick, compliant deployment of solar DC systems.
Product Information
Extended Description
DCG1104FWM Eaton: Eaton heavy duty DC disconnect,200A,NEMA 4X,Grade 304 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
DCG1104FWM
UPC
786685625447
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
UL 98B NEC 690 per UL 1741
Catalog Notes
Not all configurations for ampere rating and number of circuits are available. All circuit configurations can be found in the product dimension tables.
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
304 stainless steel
Fuse configuration
Fusible
Isolation
Isolated return
Switch type
Heavy duty DC photovoltaic systems
Protection
Fusible
Feature: Heavy‑duty 200 A, 1000 VDC rating pairs with a single‑circuit configuration to safely interrupt high‑voltage solar currents. Business Impact: Reduces fault energy exposure and simplifies safe shut‑downs, lowering downtime and risk during maintenance. Application: Ideal for mid to large solar arrays requiring reliable DC isolation without oversizing the cabinet. Feature: Fusible protection with isolated return and grounded system ensures clear fault paths and safer servicing. Business Impact: Improves fault detection and protection coordination, supporting compliance with NEC 690 and UL 1741 requirements. Application: Solar PV installations where precise protection and safe return paths are critical. Feature: NEMA 4X enclosure and 304 stainless steel construction deliver corrosion resistance and outdoor durability. Business Impact: Extends service life in rooftop or yard installations, reducing maintenance and replacement costs. Application: Outdoor solar DC disconnects exposed to weather and industrial contaminants. Feature: Generous wiring options (LC, SR, and EG configurations) support flexible wiring from 300 kcmil to #14 AWG, easing field installation. Business Impact: Simplifies labor and reduces project risk by accommodating varied conductor sizes, improving first‑pass wiring success. Application: Projects with mixed conductors or retrofit scenarios. Feature: Ample enclosure footprint (35.38 in L × 16.54 in W × 11.63 in H) and 45 lb weight balance robust protection with manageable handling. Business Impact: Facilitates safe transport, mounting, and service access without requiring special equipment. Application: Installations where rack or cabinet space is a consideration and ease of maintenance matters. Feature: UL 98B, NEC 690 per UL 1741 certifications, plus NEMA 4X enclosure rating provide regulatory alignment and peace of mind. Business Impact: Supports compliance workflows and reduces risk of non‑conformance audits. Application: Solar and industrial facilities with strict safety and reliability standards. Feature: Warranty coverage under Eaton policy (one year from install or 18 months from shipment) offers financial protection and support continuity. Business Impact: Lowers total cost of ownership by reducing unexpected service costs. Application: Long‑term solar projects where upgrade cycles and service planning are critical.
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FAQs
The DCG1104FWM requires planning for a single 200 A circuit within a 1000 VDC system, with a NEMA 4X rated 304 stainless steel enclosure. Ensure correct mounting clearance and space for wiring using LC SR or EG configurations, and verify compatibility with 300 kcmil to #14 AWG conductors. Follow NEC 690 guidelines and UL 1741 when integrating with the PV system.
Key specs include a 200 A amperage rating, 1000 VDC maximum voltage, and a single circuit configuration. It is fusible with an isolated return and grounded design, suitable for DC PV applications and solar installations, with enclosure rated NEMA 4X and made from 304 stainless steel for durability.
Yes. The unit features a NEMA 4X enclosure constructed from 304 stainless steel, designed to withstand moisture, dust, and corrosive environments typical of outdoor solar installations. This rugged build supports reliable operation in rooftop, ground‑mounted, and other exposed PV settings.
The product carries UL 98B and NEC 690 per UL 1741 compatibility, ensuring compliance with overcurrent protection and PV system interconnection standards. The NEMA 4X enclosure further confirms suitability for harsh environments. These certifications reduce regulatory risk and help ensure field integrity during installation and operation.
The 200 A, 1000 VDC rated disconnect with a rugged stainless enclosure reduces downtime and maintenance needs by providing durable outdoor protection and a long service life. The included warranty (one year from installation or 18 months from shipment) lowers total cost of ownership and supports predictable service budgeting for solar projects.