Eaton DD368FDKW-00LO Double Door Safety Switch - UL Listed
Part Number: DD368FDKW-00LO
Quick Summary
Eaton double-door single-throw fused safety switch provides rugged isolation for high-current motor circuits in industrial plants. When switching heavy loads, maintenance downtime and arc-flash risk can drive expensive outages and safety concerns. This unit carries UL Listed safety certification and is built in a weather-resistant NEMA 12 / NEMA 3R enclosure, with Class L fuse protection to ensure short-circuit mitigation. Designed for industrial protection switches applications, this model supports easy integration and reliable performance in control panels and MCCs, helping engineers meet compliance while reducing total cost of ownership.
Product Information
Extended Description
DD368FDKW-00LO Eaton: Eaton Double door single-throw fused safety switch, 1200 A, NEMA 12/3R, Painted galvanized steel, Class L, Fusible without neutral, Three-pole, Three-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
DD368FDKW-00LO
UPC
786689211912
Product Length/Depth
27.18 in
Product Height
43.11 in
Product Width
91.02 in
Product Weight
575 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
1200A
Fuse class provision
Class L
HP rating - max
500, 500 hp (3PH @480, 600 V)
NEMA rating
NEMA 12
Voltage rating
600 V
Product Category
Dust tight
Special features
w/ window, Lock-On Provision
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - DD368FDKW-00LO
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 1200 A amperage rating and three-pole, three-wire construction deliver high-current isolation with minimal voltage drop. Business impact: Enables safe and compliant main-disconnect points for large motor loads, reducing unplanned outages in manufacturing lines. Application: Suitable for MCCs and process plants, with compatibility to 600 V systems and 480 V motor drives. Feature: NEMA 12 / NEMA 3R enclosure provides environmental protection against dust, moisture, and corrosion in industrial environments. Business impact: Improves uptime and reduces maintenance costs in damp or dusty facilities. Application: Ideal for outdoor-rated or factory-floor installations where washdown or exposure occurs. Feature: Fusible without neutral configuration and Class L fuse provides precise protection for three-phase circuits. Business impact: Limits arc-flash energy and extends equipment life, lowering total ownership costs. Application: Used in high-hydraulic or high-inertia loads where fuse coordination matters. Feature: Heavy-duty, double-door isolation with window and lock-on provision supports safe servicing. Business impact: Enhances lockout-tagout compliance and operator safety during maintenance. Application: Controls access in busy MCC rooms and switchgear assemblies. Feature: Large-form-factor enclosure and documented specifications (HP rating up to 500 HP @ 480 V) enable straightforward integration with existing plant electrical architectures. Business impact: Reduces engineering time and ensures regulatory alignment. Application: Main disconnects for industrial facilities with 600 V class distribution.
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FAQs
The unit is a 3-pole, 1200 A fused safety switch with NEMA 12 / 3R enclosure. Plan for a substantial footprint (length/depth 27.18 in, height 43.11 in, width 91.02 in) and a suitable mounting surface in the MCC room. Ensure panel openings, electrical clearances, and lockout provision align with plant safety policies.
Match to 600 V class distribution, 3-phase loads, and up to 500 hp motor ratings at 480 V or equivalent. The DD368FDKW-00LO is fusible without neutral and supports four 1/0 to 750 kcmil conductors per terminal group, enabling robust wiring for large motor feeds.
Yes, the enclosure supports NEMA 12 and NEMA 3R conditions, offering dust-tight and weather-resistant protection in industrial settings. Consider additional weatherproofing and sealing strategies if the panel is exposed to direct rainfall or corrosive atmospheres.
The switch is UL Listed, and designed with a NEMA-rated enclosure for rugged industrial use. This combination supports compliance with safety programs and helps meet internal requirements for motor control and power distribution.
Eaton provides a specification sheet and policy documents for distribution and control products. Use the official spec sheet to verify dimensions, wiring, and installation steps; consider uptime improvements and reduced maintenance to estimate ROI.