Eaton DD366NWKW-00V1 Double Door Safety Switch - UL Listed
Part Number: DD366NWKW-00V1
Quick Summary
Eaton double door fused safety switch provides rugged, code-compliant power isolation for industrial control panels. When downtime or safety incidents threaten productivity, a durable, easy-to-install unit reduces risk and speeds response. UL Listed certification and a NEMA 4X, 304 stainless steel enclosure ensure reliability in washdown and harsh environments, while fusible with neutral wiring supports streamlined protection. With a 600 A rating and high hp capability, it protects motors and drives without frequent panel changes, delivering long-term cost savings and dependable performance for critical processes.
Product Information
Extended Description
DD366NWKW-00V1 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line side, 600 A, NEMA 4X, Class H, Fusible with neutral, Three-pole, Four-wire, 600 V, Max Hp: 400, 500 hp (3PH @480/600 V), (1)#2(1)#2-(1)600, and (1)750 kcmil
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD366NWKW-00V1
UPC
786679184806
Product Length/Depth
19.31 in
Product Height
25.32 in
Product Width
77.96 in
Product Weight
265 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 4X
Enclosure material
304 stainless steel
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty double door safety switch
Amperage Rating
600A
Fuse class provision
Class H
HP rating - max
400, 500 hp (3PH @480/600 V)
Voltage rating
600 V
Product Category
Watertight
Special features
V indicator line side, w/ window
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - DD366NWKW-00V1
Feature: Heavy-duty NEMA 4X enclosure crafted from 304 stainless steel provides corrosion resistance and washdown durability. Business Impact: Reduces maintenance, minimizes corrosion-related downtime, and extends service life in harsh environments. Application: Ideal for water/wastewater, food and beverage, and chemical processing facilities where cleanliness and containment matter. Feature: Fusible with neutral fuse configuration simplifies protection coordination and wiring. Business Impact: Streamlines installation, improves fault isolation, and lowers commissioning time while meeting safety requirements. Application: Three-phase motor circuits and protected feeders in control panels. Feature: Amperage and voltage ratings of 600 A and 600 V with three poles and four wires. Business Impact: Supports high-inrush motor loads and robust protection for large drives, reducing the need for multiple devices. Application: Heavy-load industrial motor starters and process lines. Feature: Voltage indicator on the line side with window enhances visibility during maintenance. Business Impact: Speeds green-field troubleshooting and minimizes unplanned downtime by enabling quick status checks. Application: Routine commissioning and field servicing in demanding environments. Feature: UL Listed certification and documented warranty provide compliance assurance and risk mitigation. Business Impact: Facilitates procurement and regulatory alignment, with support coverage that reduces lifecycle costs. Application: Projects requiring safety certifications and long-term supplier reliability.
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FAQs
Yes. The DD366NWKW-00V1 is designed for integration into standard industrial control panel layouts and compatible switchgear configurations. With a three-pole, four-wire design and fusible with neutral, it simplifies wiring and provides straightforward replacement in existing systems. Ensure panel clearance, proper bus bar alignment, and adherence to UL listings during retrofit to maintain compliance and protection.
The device is rated for 600 A and 600 V with three poles and four wires, supporting up to 400–500 hp for three-phase motors at 480/600 V. The fusible with neutral configuration enables proper protection coordination, while the UL Listed certification confirms safety compliance. This combination delivers reliable shutdown, controlled inrush handling, and robust protection for high-demand motor circuits.
Yes. The enclosure is rated NEMA 4X and crafted from 304 stainless steel, providing excellent resistance to moisture, dust, and washdown exposure. This makes the DD366NWKW-00V1 suitable for demanding environments such as food and beverage processing, water/wastewater treatment, and other facilities requiring durability in wet or corrosive conditions.
The DD366NWKW-00V1 carries UL Listed certification, signaling compliance with recognized safety standards. The NEMA 4X enclosure rating further supports installation in challenging environments. Together, these certifications simplify procurement by satisfying safety and quality requirements for regulated industrial projects and facility-standard installations.
The combination of a durable 304 stainless steel enclosure, high amperage/voltage ratings, and a single fusible-with-neutral device reduces the number of components in service and simplifies maintenance. The result is lower spare-part inventory, fewer field adjustments, and improved uptime, contributing to a favorable total cost of ownership for motor-control applications.