Eaton DD365NWKW-00V3 Dual Door Safety Switch - NEMA 4X
Part Number: DD365NWKW-00V3
Quick Summary
The Eaton DD365NWKW-00V3 is a dual-door fused safety switch designed for industrial control panels and machine safety. Engineers often struggle with safe lockout, reliable voltage verification, and maintaining enclosure integrity in harsh environments. UL Listed certification and a NEMA 4X stainless steel enclosure provide robust protection, while the three-pole, 400 A design supports up to 350 hp in 480/600 V systems with neutral included. This combination reduces maintenance downtime, simplifies compliance checks, and improves operator safety. For panel builders and maintenance crews, the DD365NWKW-00V3 offers dependable isolation, clear voltage indication, and compatibility with standard wiring schemes, delivering measurable business value in protection and reliability.
Product Information
Extended Description
DD365NWKW-00V3 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line and load side, 400 A, NEMA 4X, w/ neutral, Three-pole, Four-wire, 600 V, Max Hp: 250, 350 hp (3PH @480/600 V), (2)#1/0(1)#1/0-(2)300 kcmil-#1/0, or (1)175 kcmil-#1/0
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD365NWKW-00V3
UPC
786679184349
Product Length/Depth
16.41 in
Product Height
24.32 in
Product Width
72.46 in
Product Weight
219 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
400A
Fuse class provision
Class H
HP rating - max
250, 350 hp (3PH @480/600 V)
Voltage rating
600 V
Product Category
Watertight
Special features
V indicator line and load side, w/ window
Flex Center Customized Double Door Switch with Voltage Indicator and Safe-Test Point
Flex Center Customized Double Door Switch with Voltage Indicator and Safe-Test Point
Flex Center Customized Double Door Switch with Voltage Indicator and Safe-Test Point
Flex Center Customized Double Door Switch with Voltage Indicator and Safe-Test Point
Flex Center Customized Double Door Switch with Voltage Indicator and Safe-Test Point
Eaton Specification Sheet - DD365NWKW-00V3
Fusible with neutral configuration simplifies safe isolation and permits a neutral return for control circuits, reducing fuse handling complexity and improving fault-clearing speed. In practice, this enables clean power interruption for high-power feeders and minimizes arc flash risk during service on 400 A, 3P systems up to 600 V. The 400 A amperage rating and the HP range of up to 250–350 hp (3PH @480/600 V) support large motors with fewer devices, reducing panel footprint and capital expenditure while maintaining robust protection. Voltage indicator line and load side with window provide rapid status verification without opening the enclosure, speeding maintenance and reducing the potential for mis-operation. The 304 stainless steel enclosure with NEMA 4X protection offers corrosion resistance and watertight integrity for outdoor, washdown, and harsh industrial environments, lowering lifecycle maintenance costs. Flexible wiring options, including a three-pole, four-wire configuration and conductor sizing allowances ((2)#1/0(1)#1/0-(2)300 kcmil-#1/0, or (1)175 kcmil-#1/0), streamline field installation and minimize wiring errors. A UL Listed product with a stated warranty of one year from installation (or 18 months from shipment) adds regulatory confidence and predictable service life for panel builders and operators alike.
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FAQs
The DD365NWKW-00V3 is a three-pole, four-wire fused safety switch rated for 400 A at 600 V. It uses a NEMA 4X, 304 stainless steel enclosure and includes a voltage indicator, making it suitable for industrial control panels, motor feeders, and outdoor or washdown environments where reliable isolation is required.
It employs a fusible with neutral fuse configuration, designed to support field wiring with conductor options such as (2)#1/0(1)#1/0-(2)300 kcmil-#1/0, or (1)175 kcmil-#1/0, depending on the specific installation. This enables flexible, code-compliant wiring for large feeders and motors.
Yes. The DD365NWKW-00V3 is rated for 400 A and supports up to 250, 350 hp for three-phase systems at 480/600 V, making it appropriate for large motors and demanding load profiles while maintaining a compact, safe isolation device.
The unit is UL Listed and features a NEMA 4X enclosure with a 304 stainless steel construct, providing strong protection against dust, water, and corrosion. While CE or SIL ratings aren’t specified in the data, the UL Listing and rugged enclosure support compliance in many regulated environments.
Benefit from a one-year warranty (or eighteen months from shipment) and a design that minimizes downtime through integrated voltage indication and robust enclosure protection. The combination of high-current capability, strong environmental sealing, and straightforward wiring often translates to lower maintenance costs and faster fault isolation in routine servicing.