Eaton DD368NWKW Double Door Fused Safety Switch - UL Listed
Part Number: DD368NWKW
Quick Summary
Eaton DD368NWKW double door fused safety switch protects industrial electrical systems with robust safety control. Many plants struggle with downtime and fault isolation; this unit ensures reliable isolation and quick maintenance. Built to UL Listed standards with a NEMA 4X stainless steel enclosure (304 grade) for harsh, washdown environments. Designed for heavy-duty electrical protection in industrial facilities, it supports 600 V three-pole, four-wire configurations and Class L fusible protection. This translates to improved uptime, safer shutdowns, and easier procurement for engineers and maintenance teams. Its 1200 A amperage rating, 600 V operation, and 500 hp rating at 480/600 V support scalable motor protection for heavy equipment in plants.
Product Information
Extended Description
DD368NWKW Eaton: Eaton Double door single-throw fused safety switch, 1200 A, NEMA 4X, 304 stainless steel, Class L, Fusible with neutral, Three-pole, Four-wire, 600 V, Max Hp: 500, 500 hp (3PH @480/600 V), (4)#1/0-(4)750 kcmil
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD368NWKW
UPC
786679184974
Product Length/Depth
27.18 in
Product Height
43.11 in
Product Width
91.02 in
Product Weight
575 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
1200A
Fuse class provision
Class L
HP rating - max
500, 500 hp (3PH @480/600 V)
Voltage rating
600 V
Product Category
Watertight
Special features
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 - DD368NWKW
Feature: NEMA 4X, 304 stainless steel enclosure provides superior corrosion resistance and washdown durability. Business Impact: Reduces maintenance frequency and downtime in harsh environments, improving overall equipment effectiveness (OEE). Application: Ideal for outdoor industrial sites, chemical processing, and food & beverage facilities where cleaning and exposure to liquids are routine. Feature: UL Listed certification and Class L fuse provision ensures code compliance and reliable selective coordination. Business Impact: Lowers compliance risk and arc-flash exposure while protecting costly motors. Application: Large motor drives and process lines in regulated sectors. Feature: Three-pole, four-wire configuration with neutral, rated for 600 V. Business Impact: Supports safe, flexible power management and straightforward integration with existing switchgear. Application: High-power motor protection and panel integration. Feature: 1200 A amperage rating with a 500 hp (3PH @480/600 V) capability. Business Impact: Enables direct protection for substantial industrial loads, reducing subpanel sizing and wiring complexity. Application: Heavy-duty motor control centers and plant feeder systems. Feature: Watertight design and window feature for visible status. Business Impact: Improves reliability and fast fault diagnosis, reducing maintenance time. Application: Food processing, water treatment, and outdoor installations where visibility matters. Feature: Large enclosure footprint with specified dimensions and weight. Business Impact: Robust enclosure supports secure mounting and vandal resistance in demanding sites. Application: Heavy industrial environments requiring durable protection.
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FAQs
Begin with the rated mounting surface and secure the 304 stainless steel NEMA 4X enclosure against the outdoor or washdown area. Verify enclosure seals, connect three-pole, four-wire 600 V wiring with a neutral, and install Class L fuses per the Eaton specification sheet. Ensure UL Listed compliance and perform functional testing with door interlocks and the visible status window to confirm proper isolation before commissioning.
Suitable for high-power motor control and process lines, including outdoor installations. It supports 3P4W configurations at up to 600 V and 1200 A, with a Class L fuse providing selective protection. Ideal for heavy equipment protection, switchgear integration, and facilities seeking robust, watertight protection in demanding environments.
The unit is UL Listed and housed in a NEMA 4X enclosure made from 304 stainless steel, offering corrosion resistance and washdown capability. This combination provides reliable protection for outdoor and harsh indoor environments while meeting common safety and performance standards in industrial facilities.
The design emphasizes visibility with a window and straightforward fusible protection with a neutral, facilitating quick fault isolation and rapid maintenance. The rugged enclosure reduces corrosion-related service interruptions, while UL compliance and robust construction simplify ongoing inspections and warranty adherence.
Class L fuses offer high inrush resistance and established time-current coordination, allowing selective protection for downstream equipment. The neutral connection enables balanced fault protection in 3P4W circuits, reducing nuisance trips and improving overall system efficiency and safety in high-power motor applications.