Eaton DD363NWKW-00V3 Fused Safety Switch - NEMA 4X
Part Number: DD363NWKW-00V3
Quick Summary
The Eaton DD363NWKW-00V3 fused safety switch is designed to safely isolate three-phase motors in demanding industrial environments. This device helps prevent accidental energization during maintenance and startup, reducing downtime and risk. The unit features a NEMA 4X enclosure and a 304 stainless steel body for washdown and corrosion resistance, with a rugged fusible-with-neutral configuration for reliable protection. UL Listed certification reinforces compliance with electrical safety standards, while the 600 V rating supports modern motor control architectures. In practice, technicians benefit from straightforward installation, visible voltage indication, and a protective window on the load side, combining safety with operational efficiency. This makes it an ideal fit for manufacturers prioritizing uptime, safety, and long-term cost efficiency.
Product Information
Extended Description
DD363NWKW-00V3 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line and load side, 100 A, NEMA 4X, 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
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD363NWKW-00V3
UPC
786679173947
Product Length/Depth
39.19 in
Product Height
10.21 in
Product Width
12.33 in
Product Weight
50 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
Wire size
#14-1/0 AWG
Amperage Rating
100A
Fuse class provision
Class H
HP rating - max
30, 40/ 60, 75 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 4X
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 - DD363NWKW-00V3
Enclosure and material provide superior washdown resistance and corrosion protection, thanks to a 304 stainless steel NEMA 4X housing. This translates to extended service life in harsh environments and reduced maintenance costs for plants with frequent cleaning cycles. The three-pole, four-wire design with fusible with neutral ensures safe, reliable power control while simplifying wiring schemes and fault isolation in large motor drives, improving startup reliability and reducing energy waste in packed production lines. Voltage indicator line and load side with window deliver quick, at-a-glance status checks, lowering commissioning time and minimizing erroneous energization during maintenance. With a 100 A rating and HP range up to 75 hp, this switch supports a broad spectrum of motor sizes while staying compliant with Class H fuse provisions for protection against short circuits. UL Listed and NEMA 4X compliance provide confidence for code adherence and long-term asset protection. Overall installation efficiency, compatibility with 600 V systems, and rugged construction offer measurable ROI through reduced downtime, safer maintenance, and extended equipment life.
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FAQs
Yes. The DD363NWKW-00V3 is rated for 600 V and supports three-pole, four-wire motor circuits up to 100 A. Its fusible-with-neutral configuration simplifies integration with common 480 V/600 V VFDs and legacy motors, while the NEMA 4X enclosure remains suitable for washdown environments. When upgrading, verify wire gauge (#14-1/0 AWG) and the HP rating (up to 75 hp) to ensure full compatibility and maximum protection.
The switch uses a Class H fuse with neutral, protecting against overcurrent while allowing safe fault isolation. It is UL Listed and rated for 100 A, three poles, and four wires. HP ratings range from 30 to 75 hp depending on service conditions, with a 600 V maximum voltage rating. These features align with standard industrial motor protection practices and help minimize repair costs after faults.
Yes. The DD363NWKW-00V3 features a NEMA 4X enclosure and a 304 stainless steel body, making it well-suited for washdown zones, chemical processing, and other corrosive environments. The corrosion-resistant construction helps maintain long-term reliability in challenging facilities, reducing maintenance cycles and downtime.
This model is UL Listed and designed with a NEMA 4X enclosure, providing essential safety and environmental protection. These certifications help ensure regulatory compliance for industrial installations and support safe, code-compliant motor control across manufacturing floors.
The rugged stainless-steel enclosure and sealed design reduce corrosion-related failures, while clear voltage indication improves commissioning and servicing efficiency. A one-year warranty (per Eaton policy) adds confidence during installation. Together, these factors contribute to lower maintenance costs, reduced downtime, and improved asset uptime across motor-driven lines.