Eaton DH363NRK Heavy Duty Fusible Safety Switch - NEMA 3R
Part Number: DH363NRK
Quick Summary
Eaton heavy duty fusible safety switch DH363NRK provides reliable isolation for three‑phase power in industrial settings. This design helps minimize downtime and improve safety during maintenance by delivering a robust, code-compliant solution for high-current circuits. Key compliance includes UL Listed protection and a NEMA 3R enclosure, which supports both indoor and outdoor installations. The combination of a 100 A rating, fusible with neutral configuration, and a 600 V maximum makes it a smart choice for panel builders and site electricians seeking dependable performance, easy wiring, and long-term reliability in demanding environments.
Product Information
Extended Description
DH363NRK Eaton: Eaton Enhanced visible blade single-throw safety switch, 100 A, NEMA 3R, Painted galvanized steel, Class H, Fusible with neutral, Three-pole, Four-wire, 600 V, Max Hp: 30, 40/ 60, 75 hp (1/3PH @480, 600 V), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH363NRK
UPC
782113206493
Product Length/Depth
22.5 in
Product Height
8.5 in
Product Width
12.75 in
Product Weight
22 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 Listed
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
100A
HP rating - max
30, 40/ 60, 75 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Feature: 100 A, three-pole, fusible with neutral, 600 V rating. Business Impact: Enables safe isolation of motor and distribution circuits with precise protection, reducing arc-flash exposure and equipment damage. Application: Suitable for service disconnects in industrial power distribution where four-wire configurations are required. Feature: NEMA 3R enclosure with painted galvanized steel. Business Impact: Provides weather resistance and durable service in indoor or outdoor spaces, lowering maintenance frequency and costs. Application: Outdoor switch installations or damp locations in process facilities. Feature: Class H fuse provision and UL Listed safety assurance. Business Impact: High reliability fusing with clearly defined replacement guidelines, supporting regulatory compliance and reduced downtime. Application: Critical plant sections with heavy motor loads and variable torque demands. Feature: Three-pole, four-wire configuration with neutral. Business Impact: Simplifies grounding and neutral distribution, streamlining wiring diagrams and panel wiring times. Application: Motor control centers and distribution panels. Feature: HP rating options and 600 V capability. Business Impact: Supports scalable protection for machines up to 75 hp at 1/3PH on 480/600 V systems, enabling future expansion. Application: Packaging lines, conveyors, and HVAC drives in moderate to harsh environments. Insight: Integrates with standard 22.5 in length, 12.75 in width, and 8.5 in height footprint for straightforward retrofits and inventory planning.
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FAQs
DH363NRK uses a NEMA 3R enclosure in a three-pole, fusible with neutral configuration and four wires. It is rated for 600 V and 100 A, with #14-#1/0 Cu/Al conductors, making it suitable for industrial power distribution and motor control centers.
Follow UL Listed installation guidelines, verify the Class H fuse provisions, connect the neutral as required for four-wire operation, and use conductors within the #14-#1/0 Cu/Al range. Ensure the enclosure is installed in a suitable environment (NEMA 3R) and that wiring diagrams are followed for proper torque and protection.
Industries with high-current motor loads and distributed power, such as manufacturing, packaging lines, material handling, and HVAC systems, benefit from reliable isolation, protected motor control, and streamlined commissioning provided by the DH363NRK.
The DH363NRK is UL Listed and offered in a NEMA 3R enclosure. It supports 100 A, 600 V, three-pole operation with a neutral fusible configuration, and is designed for both indoor and outdoor environments.
The unit measures 22.5 inches in length, 12.75 inches in width, and 8.5 inches in height, with a weight of 22 lb, which facilitates straightforward mounting, transport, and integration into standard electrical rooms.