Eaton DCU1063FRM DC disconnect - NEMA 3R
Part Number: DCU1063FRM
Quick Summary
Eaton DCU1063FRM is a heavy duty DC disconnect designed for solar PV systems and ungrounded DC circuits. Facilities struggle with safe isolation and reliable fuse protection in cramped spaces, often risking downtime during maintenance. It carries UL 98B and NEC 690 per UL 1741 compliance, supported by a NEMA 3R enclosure for outdoor and damp environments. For installers and procurement teams, its compact footprint, 600 VDC rating, and #14-1/0 AWG lug capacity streamline installation, reduce wiring errors, and support code-compliant safety practices across distributed solar and industrial DC applications.
Product Information
Extended Description
DCU1063FRM Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,100A,NEMA 3R,Painted galvanized steel,Fusible,Ungrounded,#14-1/0 AWG lug capacity, #14-1/0 AWG solid return,600 Vdc,1,DC Photovoltaic Applications
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU1063FRM
UPC
786685556994
Product Length/Depth
9.89 in
Product Height
21.99 in
Product Width
11.84 in
Product Weight
26 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/ungrounded system
Amperage Rating
100A
Number of circuits
1
Ground
Ungrounded
Maximum voltage
600 VDC
NEMA rating
NEMA 3R
Protection
Fusible
Application
Solar
Main lug wire size
#14-1/0 AWG lug capacity, #14-1/0 AWG solid return
System voltage
600 VDC per pole
Voltage rating
600 VDC
Series
DC Photovoltaic Applications
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Fusible
Switch type
Heavy duty
Protection
Fusible
Feature: The DCU1063FRM is a 100A, single-circuit, ungrounded DC disconnect rated for 600 VDC. Business impact: This arrangement provides decisive isolation for PV arrays and precise fuse coordination, reducing fault propagation and safety risk on site. Application: Suited for solar installations and other ungrounded DC configurations where code-mapproved disconnects are required. Feature: NEMA 3R, painted galvanized steel enclosure for weather resistance. Business impact: Extends service life in outdoor environments and reduces maintenance. Application: Rooftop and ground-mounted PV systems, outdoor electrical rooms. Feature: Fusible protection with UL 98B and NEC 690 per UL 1741 compliance. Business impact: Regulatory compliance is ensured, protecting circuits and equipment while improving safety margins. Application: Solar electrical protection in harsh environments. Feature: Main lug capacity for #14-1/0 AWG conductors. Business impact: Flexible wiring options simplify field termination and reduce inventory needs. Application: PV strings and feeders requiring robust, code-compliant terminations. Feature: Compact dimensions and weight (9.89 in depth, 11.84 in width, 21.99 in height; 26 lb). Business impact: Easier installation in constrained spaces and lighter shipping, lowering installation time and labor costs. Application: Space-limited electrical closets, outdoor enclosures, and rooftop installations. Feature: Warranty coverage per Eaton policy 25-000 (one year from installation or 18 months from shipment). Business impact: Clear post-sale support enhances total cost of ownership and procurement confidence. Application: Asset management and long-term service planning.
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FAQs
The DCU1063FRM is designed for solar PV installations and ungrounded DC circuits up to 600 VDC, with a 100A rating and single circuit. It uses lug connections for #14-1/0 AWG conductors, and its NEMA 3R enclosure is suitable for outdoor or damp locations. This supports code-compliant isolation and straightforward integration with PV equipment.
The unit complies with UL 98B and NEC 690 per UL 1741, with fusible protection that aligns with safety standards. Its ungrounded design helps manage fault currents in PV systems, and the NEMA 3R enclosure supports outdoor service, delivering robust protection in challenging environments.
Yes. The DCU1063FRM uses a NEMA 3R enclosure and painted galvanized steel construction designed for outdoor exposure. Its weather-resistant housing, combined with a 600 VDC rating, makes it appropriate for rooftop and ground-mounted PV installations where environmental resilience is essential.
Key benefits include safe isolation of PV arrays, reliable fusible protection, and regulatory compliance (UL 98B, NEC 690 per UL 1741). The unit also offers straightforward wiring with lug capacities for common PV conductors, favorable installation footprint, and reduced maintenance downtime in outdoor or harsh environments.
Eaton provides a warranty per policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This coverage supports post-sale service, potential replacements, and service planning, aligning with typical industrial procurement cycles for solar and electrical protection equipment.