Eaton DD364FWKW Fused Safety Switch - NEMA 4X
Part Number: DD364FWKW
Quick Summary
The Eaton DD364FWKW fused safety switch provides safe isolation for motor and panel circuits. Engineers often struggle with corrosion, ingress, and maintenance downtime in demanding environments. With UL Listed certification, a NEMA 4X enclosure, and a 304 stainless steel body, it stands up to washdowns and harsh conditions. Designed for easy installation and code-compliant protection, it delivers reliable current handling (200 A) and scalable HP ratings, helping you reduce downtime and extend service life. This combination of rugged construction and precise electrical performance supports safer, more efficient plant operations while maintaining compliance across industrial facilities.
Product Information
Extended Description
DD364FWKW Eaton: Eaton Double door single-throw fused safety switch, 200 A, NEMA 4X, 304 stainless steel, Class H, Fusible without neutral, Three-pole, Three-wire, 600 V, Max Hp: 50, 50/ 125, 150 hp (1/3PH @480, 600 V), #6-300 kcmil
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD364FWKW
UPC
786679174364
Product Length/Depth
49.9 in
Product Height
11.62 in
Product Width
17.18 in
Product Weight
85 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 without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty double door safety switch
Wire size
#6 AWG-300 kcmil
Amperage Rating
200A
Fuse class provision
Class H
HP rating - max
50, 50/ 125, 150 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 4X
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 - DD364FWKW
Feature: 200 A amperage rating with 600 V maximum voltage. Business impact: Handles high-load motor circuits and heavy-duty equipment with reliable protection, reducing fuse-related downtime. Application: Suitable for machine wiring in industrial plants where high current protection is required. Feature: NEMA 4X enclosure with 304 stainless steel construction. Business impact: Resists corrosion and washdown exposure, extending service life in challenging environments. Application: Food & beverage, chemical processing, and outdoor installations where moisture, dust, and corrosive vapors are present. Feature: Fusible without neutral and three-pole design. Business impact: Simplifies wiring and maintenance while delivering precise fault isolation, lowering installation time and risk. Application: Large motors and MCCs in heavy industries requiring robust safety control. Feature: Class H fuse provision. Business impact: Provides defined protection curves for motor loads, improving safety margins and compliance with electrical codes. Application: Industry-standard fuse protection for 50, 125, 150 hp configurations at 480–600 V. Feature: 49.9 in length, 11.62 in height, 17.18 in width footprint and 85 lb weight. Business impact: Predictable space planning and easier retrofit in existing enclosures, reducing commoditized installation costs. Application: Retrofit and replacement projects in retrofitting industrial control panels.
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FAQs
The DD364FWKW is a three-pole, fusible switch designed for 600 V systems and supports #6 AWG to 300 kcmil wiring. It fits standard mounting footprints and offers a NEMA 4X-rated enclosure to withstand washdown environments. When integrating, verify panel space, conductor routing, and fuse access for safe servicing and code-compliant installation.
Electrical ratings include a 200 A amperage rating, 600 V maximum voltage, and Class H fuse protection. It supports three wires and three poles with fusible configuration without neutral. HP ratings up to 50/125/150 hp (1/3PH at 480–600 V) make it suitable for a range of motor-driven applications while meeting standard protection curves.
Yes. The enclosure is NEMA 4X rated and constructed from 304 stainless steel, delivering superior corrosion resistance and washdown compatibility in challenging settings such as food processing, chemical processing, and outdoor installations where moisture and contaminants are present.
The fusible without neutral design simplifies wiring and fuse replacement, reducing commissioning time and service intervals. Class H fuse provisions align with standard motor protection, improving fault discrimination and minimizing unplanned downtime during maintenance or replacement, which directly translates to higher equipment availability.
Investing in the DD364FWKW yields ROI through reduced downtime, longer enclosure life in harsh environments, and lower maintenance costs due to corrosion-resistant construction. The 200 A capacity supports larger motor loads with reliable isolation, while UL listing and NEMA 4X compliance help avoid compliance penalties and retrofit costs.