Eaton DCU3104FXM DC Disconnect - 200A, NEMA 4X, 1000VDC
Part Number: DCU3104FXM
Quick Summary
DCU3104FXM DC Disconnect by Eaton provides a robust, 200 A ungrounded switch suitable for solar arrays and energy storage systems. In outdoor or harsh environments, downtime and corrosion are costly; the 316 stainless steel enclosure and NEMA 4X protection help keep critical circuits online. This unit carries UL 98B and NEC 690 per UL 1741 compliance, ensuring safety and reliability for PV installations. With LC, SR, and EG main lug terminations rated up to 300 kcmil, installation is flexible across system sizes. For procurement teams, the rugged design delivers predictable performance, lower maintenance costs, and reliable protection for solar and microgrid projects.
Product Information
Extended Description
DCU3104FXM Eaton: Eaton Heavy duty DC disconnect, 200 A, NEMA 4X, Grade 316 stainless steel, Fusible, 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, Max:1000 Vdc, NEMA 4X, 3, Fusible, System:1000 Vdc
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU3104FXM
UPC
786685625775
Product Length/Depth
35.38 in
Product Height
11.63 in
Product Width
24.46 in
Product Weight
70 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
Type
DC disconnect/ungrounded system
Amperage Rating
200 A
Number of circuits
3
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
Switch type
Heavy duty
Protection
Fusible
Enclosure and material: The 316 stainless steel NEMA 4X enclosure provides superior corrosion resistance and outdoor durability, reducing enclosure-related downtime and maintenance. This translates to longer service life in coastal or industrial environments and lowers total cost of ownership for solar and energy storage sites. Application: Ideal for solar PV and microgrid protection, enabling reliable isolation and disconnection under fault or maintenance conditions while complying with harsh-site requirements. 200 A rating with three circuits: supports multiple strings or subsystems with a single disconnect, reducing cabinet clutter and simplifying wiring harnesses. Business impact: streamlined installation, improved traceability, and faster commissioning for projects with tight timelines. Application synergy: fits standard solar layouts and storage configurations, minimizing engineering changes during scale-up.
Get a Quick Quote for a Eaton DCU3104FXM
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton DCU3104FXM?
Enquire Now
FAQs
The DCU3104FXM supports LC, SR, and EG main lug terminations. LC allows In 300 kcmil to Out 300 kcmil-#6, SR supports in/out 300 kcmil-#6, and EG handles in #4-#14 AWG to out 1/0-#14. This provides flexible wiring for diverse string configurations and simplifies field adaptation on site.
It is rated for 200 A across 3 circuits with a maximum voltage of 1000 VDC and uses a fusible protection scheme. The device is UL 98B listed and designed to meet NEC 690 per UL 1741 requirements, enabling safe operation in PV and energy storage applications.
Yes. The enclosure is made from 316 stainless steel and is rated NEMA 4X, which provides high resistance to corrosion and water ingress. This makes it well-suited for outdoor solar farms, rooftop arrays, and other harsh environments where reliability is critical.
The DCU3104FXM carries UL 98B listing and NEC 690 compliance as referenced by UL 1741. These standards cover safety, disconnect performance, and interconnection requirements for PV systems, helping ensure regulatory alignment and safer field operation.
With a rugged 316 stainless steel NEMA 4X enclosure, fusible protection, and modular lug options, maintenance needs are reduced and downtime is minimized. A longer service life and fewer field changes translate to lower lifecycle costs, faster project commissioning, and improved return on investment for solar and storage deployments.