Eaton DD368FDKW-00V3 Fused Safety Switch - UL Listed
Part Number: DD368FDKW-00V3
Quick Summary
The Eaton DD368FDKW-00V3 fused safety switch isolates 600 V circuits in industrial power systems. Too often downtime and misstarts stem from inadequate isolation devices, so you need a rugged unit with clear status indicators. UL Listed with a dust-tight NEMA 12 and weather-resistant NEMA 3R enclosure provides reliable protection in challenging environments. This three-pole, fusible switch supports 1200 A service with Class L fuse provisions and voltage-indicator line/load side, helping you minimize unplanned outages and simplify maintenance—ideal for high-energy motors and line-side protection in automation facilities. Its compatibility with standard switchgear footprints and the voltage indicator window accelerates installation and fault isolation. Designed for 600 V, three-phase applications and up to 1200 A, it fits in factories upgrading motor control and power distribution.
Product Information
Extended Description
DD368FDKW-00V3 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line and load side, 1200 A, NEMA 12/3R, 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-00V3
UPC
786679184868
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 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)
Voltage rating
600 V
Product Category
Dust tight
Special features
V indicator line and load side, w/ window
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Switching Devices Flex Center
Eaton Specification Sheet - DD368FDKW-00V3
Feature: 1200 A amperage rating. Business impact: supports large motor feeders and high-load distribution without undersizing the protective device. Application: ideal for heavy-duty machinery and line-side protection in automation plants. Feature: Fuse configuration Class L, fusible without neutral. Business impact: provides reliable overcurrent protection with selective coordination for critical loads, reducing nuisance tripping. Application: motor control centers and process lines where precise protection matters. Feature: Voltage indicator line and load side with window. Business impact: enables quick status checks and faster fault localization, cutting downtime during maintenance. Application: mainstream motor feeders and service entrances requiring immediate visibility. Feature: Enclosure rated NEMA 12/NEMA 3R with painted galvanized steel. Business impact: delivers dust-tight protection and rain/ice resistance for indoor and some outdoor installations, lowering environmental risk. Application: factory floors, switchrooms, and outdoor-rated installations in moderate climates. Feature: Three-pole, fusible without neutral with space for large conductors (up to (4)750 kcmil). Business impact: supports high-current, three-phase power distribution with straightforward wiring, reducing panel real estate needs. Application: large motor drives and feeder circuits up to 1200 A. Feature: 600 V voltage rating and 500 hp capability (3PH @480/600 V). Business impact: ensures compatibility with high-horsepower motors while delivering reliable protection. Application: industrial plants upgrading to higher-speed motors and complex motor workloads. Feature: Certifications and protection—UL Listed and heavy-duty construction. Business impact: compliance assurance and safer asset management, simplifying procurement and maintenance planning. Application: any facility requiring validated safety and robust enclosure design.
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FAQs
For reliable performance, plan for a three-pole, fusible without neutral configuration in a space that accommodates a large enclosure (NEMA 12/3R) and substantial weight (approximately 575 lb). Ensure compatible feeders up to 750 kcmil per phase and alignment with 600 V three-phase circuits. Verify mounting, clearance for ventilation, and voltage-indicator window visibility during commissioning.
Class L fuses are designed for precise overload protection and fast clearing of faults in distribution circuits. This supports selectivity with downstream protection devices, reduces nuisance trips on motor loads, and improves reliability for high-current, low-impedance motor feeders found in automation lines.
Yes. The unit is rated for up to 1200 A and supports up to 500 hp for 3-phase systems at 480/600 V. This makes it an effective main disconnect or feeder protection device for large industrial motors, reducing risk and simplifying motor control strategies within automation facilities.
The DD368FDKW-00V3 is UL Listed and housed in a dust-tight, protected enclosure rated as NEMA 12 and NEMA 3R. This combination provides dust and weather exposure protection suitable for indoor switchrooms and select outdoor or semi-outdoor environments, aligning with typical industrial safety and compliance requirements.
Plan for periodic visual checks of the voltage indicator window and wiring terminations, and maintain a stock of Class L fuse replacements. The unit’s rugged galvanized steel enclosure and clear status indicators shorten fault diagnosis time, while UL listing and robust protection reduce unexpected downtime, extending asset life and improving overall return on investment.