Eaton DCU161FRM-00GB DC disconnect/ungrounded - NEMA 3R
Part Number: DCU161FRM-00GB
Quick Summary
Eaton heavy duty DC disconnect is a critical isolation device for solar PV installations and other 600 VDC applications. Engineers often wrestle with outdoor durability, wiring compatibility, and NEC/UL compliance when selecting DC disconnects. This DCU161FRM-00GB model meets NEC 690 per UL 1741 and UL 98B, and it wears a NEMA 3R enclosure crafted from painted galvanized steel for reliable outdoor service. With a 30 A rating, one circuit, and ungrounded configuration, it offers clean, safe isolation for ungrounded PV systems. The combination of fusible protection and versatile lug capacity—#14-#2 AWG in, #14-1/0 AWG solid return—drives faster, safer installations and long-term operational confidence in solar and other 600 VDC applications.
Product Information
Extended Description
DCU161FRM-00GB Eaton: Eaton heavy duty DC disconnect,DC disconnect/ungrounded system,30A,NEMA 3R,Painted galvanized steel,Fusible,Ungrounded,#14-#2 AWG lug capacity, #14-1/0 AWG solid return,600 Vdc,3,DC Photovoltaic Applications,00GB
Product Name
Eaton heavy duty DC disconnect
Catalog Number
DCU161FRM-00GB
UPC
786679171936
Product Length/Depth
25.5 in
Product Height
9 in
Product Width
13.25 in
Product Weight
40 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
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
30A
Number of circuits
1
Ground
Ungrounded
Maximum voltage
600 VDC
NEMA rating
NEMA 3R
Protection
Fusible
Application
Solar
Main lug wire size
#14-#2 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: 30 A rating with a single circuit and fusible protection. Business Impact: Provides reliable, code-compliant isolation to protect personnel and equipment while reducing arc flash risk. Application: Solar PV strings and other ungrounded 600 VDC circuits. Feature: NEMA 3R outdoor enclosure in painted galvanized steel. Business Impact: Delivers weather-resistant performance for rooftop and outdoor installations, minimizing corrosion concerns and service interruptions. Application: Outdoor solar sites and harsh industrial environments. Feature: Main lug wire sizes and solid return compatibility (#14-#2 AWG lug capacity, #14-1/0 AWG solid return). Business Impact: Simplifies field wiring, lowers labor time, and reduces risk of incorrect terminations. Application: PV array connections and DC distribution subsystems. Feature: Fusible protection with heavy-duty switch design. Business Impact: Enhances safety and selective protection, helping to meet NEC and UL requirements while enabling straightforward maintenance. Application: Solar photovoltaic applications requiring fusible DC protection. Feature: Dimensions and weight (25.5 in L × 13.25 in W × 9 in H, 40 lb). Business Impact: Facilitates fitment planning, cabinet integration, and seismic or mechanical mounting considerations. Application: Enclosures and electrical rooms where space and weight budgets matter.
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FAQs
Yes. It is designed for ungrounded 600 VDC solar PV circuits and features a weather-resistant NEMA 3R enclosure in painted galvanized steel, making it suitable for rooftop and ground-mounted installations exposed to outdoor conditions.
The unit supports main lug connections for #14-#2 AWG wires and provides a #14-1/0 AWG solid return path, enabling flexible wiring for common PV string configurations while maintaining proper ampacity and termination integrity.
The DCU161FRM-00GB complies with NEC 690 per UL 1741 and UL 98B, ensuring code-compliant performance and safety for solar and other DC applications in regulated environments.
The enclosure measures 25.5 inches in length, 13.25 inches in width, and 9 inches in height, with an approximate weight of 40 pounds, facilitating integration into equipment rooms or outdoor enclosures and helping with mounting and clearance planning.
Designed for solar photovoltaic applications, the DCU161FRM-00GB provides safe, fusible isolation for ungrounded 600 VDC circuits. Benefits include robust outdoor durability (NEMA 3R), straightforward wiring with common lug sizes, and compliance with NEC/UL standards, which supports faster installation and improved system reliability.