Eaton DCU2064FXM DC Disconnect - NEMA 4X, 600VDC
Part Number: DCU2064FXM
Quick Summary
DC Disconnect Eaton DCU2064FXM provides a rugged heavy-duty DC disconnect for solar and energy storage systems. Engineers often struggle with reliable isolation in harsh environments, and this unit addresses that by combining a robust 316 stainless steel enclosure with proven electrical protection. It carries UL 98B and NEC 690 per UL 1741 certifications, plus a NEMA 4X enclosure for corrosion resistance in outdoor and industrial settings. This solution integrates seamlessly with photovoltaic architectures while delivering durable protection, extended service life, and lower maintenance costs for utility-scale and commercial solar installations.
Product Information
Extended Description
DCU2064FXM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,200A,NEMA 4X,Grade 316 stainless steel,Fusible,Ungrounded,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-#14,600 Vdc,2
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU2064FXM
UPC
786685625218
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
Type
DC disconnect/ungrounded system
Amperage Rating
200 A
Number of circuits
2
Ground
Ungrounded
Maximum voltage
600 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
600 VDC per pole
Voltage rating
600 VDC
Series
DC Photovoltaic Applications
Enclosure
NEMA 4X
Enclosure material
316 stainless steel
Fuse configuration
Fusible
Switch type
Heavy duty
Protection
Fusible
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - DCU2064FXM
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Heavy-duty DC disconnect rated at 200 A with two circuits. Business Impact: Enables reliable isolation for solar arrays and battery storage, reducing downtime and safety risks. Application: Solar PV installations where quick, secure disconnection is required without compromising system integrity. Feature: NEMA 4X enclosure made from 316 stainless steel. Business Impact: Weatherproof, corrosion-resistant protection extends equipment life in harsh environments, lowering lifecycle costs. Application: Outdoor solar arrays, coastal facilities, and exposed industrial sites. Feature: Fusible protection with two-luseable main lugs per circuit configuration. Business Impact: Enhanced fault protection and simplified downstream protection coordination, improving safety and compliance. Application: Utility and commercial PV systems requiring conformant protection.Feature: 600 VDC system voltage and 200 A amperage rating. Business Impact: Supports high-power PV and storage configurations while maintaining safe isolation and dependable performance. Application: Solar and ungrounded DC systems up to 600 VDC per pole. Feature: Flexible lug/wiring configurations (LC, SR, EG) to accommodate large conductors and small control wiring. Business Impact: Reduces field modification time and saves material costs during installation. Application: PV combiner boxes, battery enclosures, and controller connections. Feature: Certifications UL 98B, NEC 690 per UL 1741 and NEMA 4X compliance. Business Impact: Ensures regulatory alignment and safety certifications, easing procurement audits. Application: Grid-tied and off-grid solar projects requiring strict standards.
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FAQs
DCU2064FXM should be mounted in a weatherproof location with access for routine inspection. Use the LC, SR, or EG lug configurations to connect the appropriate conductors per the amperage rating and system voltage. Ensure proper clearance for safe operation and follow NEC requirements for grounding and fault protection. The enclosure's NEMA 4X rating supports outdoor deployments, but verify ambient temperature and chemical exposure are within the envelope specifications.
Yes. The unit is rated for 600 VDC per pole and supports a 200 A amperage rating across two circuits, making it suitable for typical solar arrays and storage configurations. Its fusible protection and robust enclosure help maintain safe switching duty in high-current PV installations, while the flexible lug options simplify field termination for large conductors.
DCU2064FXM is certified UL 98B and NEC 690 per UL 1741, indicating compliance with essential electrical protection and PV-specific wiring standards. It also features a NEMA 4X enclosure, contributing to corrosion resistance and suitability for outdoor or harsh environments. This combination supports safe operation, installation approvals, and regulatory alignment in solar projects.
The product supports multiple main lug configurations: LC accepts in up to 300 kcmil and out to 300 kcmil-#6; SR accepts in 300 kcmil-#6 and out 300 kcmil-#6; EG supports in #4-#14 AWG and out 1/0-#14. This flexibility accommodates large power conductors for PV arrays and smaller control conductors for auxiliary circuits, reducing field labor and terminations.
Eaton provides a warranty policy under 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This coverage supports early-life reliability and provides recourse for manufacturing defects, while Eaton's technical support facilitates commissioning, maintenance planning, and application-specific guidance.