Eaton DD364FDKW-00LO Double Door Fused Safety Switch - UL Listed
Part Number: DD364FDKW-00LO
Quick Summary
Eaton double door fused safety switch provides safe isolation for industrial electrical panels in manufacturing and process facilities. This high-capacity disconnect helps minimize downtime by delivering quick, reliable power shutdown for three-phase systems. Operators often struggle with space constraints and compatibility when retrofitting safety devices into crowded control rooms, but the DD364FDKW-00LO's 49.9 in depth and 17.18 in width support tight layouts. With UL Listed certification and a rugged NEMA 12/3R enclosure, it withstands dust, moisture, and routine maintenance. The fusible Class H design enables precise protective coordination and fault isolation, while a 200 A rating covers a wide range of motor loads. This solution supports industrial safety, machine protection, and compliant switchgear assemblies.
Product Information
Extended Description
DD364FDKW-00LO Eaton: Eaton Double door single-throw fused safety switch, 200 A, NEMA 12/3R, Painted galvanized steel, Class H, Fusible without neutral, 3-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
DD364FDKW-00LO
UPC
786689211899
Product Length/Depth
49.9 in
Product Height
11.62 in
Product Width
17.18 in
Product Weight
85 lb
Certifications
UL Listed
Catalog Notes
Double Door Isolation Switch
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Fusible without neutral
Number Of Poles
Three-pole
Number of wires
3
Type
Heavy duty double door safety switch
Amperage Rating
200A
Fuse class provision
Class H
HP rating - max
50, 50/ 125, 150 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 12
Voltage rating
600 V
Product Category
Dust tight
Special features
w/ window, Lock-On Provision
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 - DD364FDKW-00LO
Feature → Business Impact → Application: The 200 A amperage rating with a three-pole configuration and fusible without neutral provides a robust disconnect for large motors, reducing arc flash exposure during maintenance and improving crew safety on line-side protection. This empowers reliable operation in 480–600 V systems across manufacturing lines and process equipment. Application: large motor drives, pumps, and conveyors. Feature → Business Impact → Application: NEMA 12/NEMA 3R enclosure with painted galvanized steel delivers dust-tight and weather-resistant protection in demanding plant environments. Benefit: enhanced reliability in factory floors, outdoor installations, and wash-down areas, reducing corrosion risk and maintenance downtime. Application: control panels, machine rooms, and service entrances where environmental sealing matters. Feature → Business Impact → Application: Class H fuse provision (fusible without neutral) supports selective coordination and fault isolation, helping meet NEC/IEEE requirements and minimizing nuisance trips. Benefit: safer, code-compliant operation for motor circuits and critical feeders. Application: 50, 125, 150 hp configurations at 480/600 V. Feature → Business Impact → Application: Compact physical footprint (49.9 in depth, 11.62 in height, 17.18 in width) and 85 lb weight ease installation and retrofit projects. Benefit: simplified mounting, reduced space planning, and faster field deployment. Application: retrofit in crowded control cabinets and new builds with limited enclosure space. Feature → Business Impact → Application: 3-wire, 3-pole design with integrated window and Lock-On Provision delivers clear status indication and secure operation. Benefit: safer maintenance procedures, faster verification, and improved vandal-resistance in harsh environments. Application: plant floor disconnects, machine controls, and emergency isolation points.
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FAQs
This unit is a three-pole, three-wire disconnect rated for 200 A at up to 600 V, with a NEMA 12/3R enclosure. It fits standard industrial control panels and machine rooms requiring dust-tight, weather-resistant protection. Its compact footprint and mounting thickness support retrofits in crowded cabinets and new builds alike.
Key specs include a 200 A amperage rating, 600 V voltage rating, and HP ranges of up to 50/125/150 hp (1/3PH at 480/600 V). It uses fusible protection without neutral and provides 3-pole isolation, making it suitable for large motors and compliant motor circuits in three-phase systems.
Yes, it carries UL Listed certification and uses a rugged NEMA 12/3R enclosure. While not a hazardous-location switch, it is designed for dust-tight and protected service in typical manufacturing and process facilities, meeting common electrical protection standards.
The unit includes a window for status visibility and a Lock-On Provision, enabling safe, secure operation during maintenance. Its 49.9 in depth, 11.62 in height, and 17.18 in width, combined with 85 lb weight, support straightforward handling and alignment in pre-planned layouts.
The DD364FDKW-00LO reduces downtime through reliable isolation, minimizes nuisance trips via Class H fuse coordination, and supports long service life in harsh environments. The UL Listed certification and robust enclosure help ensure compliance and lower warranty risks, delivering favorable total cost of ownership in plant safety programs.