Eaton DD328FDKW Double Door Fused Safety Switch - UL Listed
Part Number: DD328FDKW
Quick Summary
The Eaton double door single-throw fused safety switch provides robust power control for industrial panels. Facing downtime, maintenance headaches, and safety compliance pressure, engineers need dependable, easy‑to‑service protection. UL Listed certification with NEMA 12 and NEMA 3R enclosures supports durable indoor and outdoor installations. By combining high amperage capability with a fusible without neutral design, it reduces integration risk and operating costs. Designed for 1200 A service, three-pole operation on 240 V circuits, and Class L fuse protection, this switch helps safeguard personnel and maintain line reliability.
Product Information
Extended Description
DD328FDKW 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, 240 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
DD328FDKW
UPC
786679184028
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
240V
Product Category
Dust tight
Special features
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 - DD328FDKW
Feature: 1200 A amperage rating; Business Impact: Enables management of large motor loads and high-power disconnects with a single unit, reducing panel clutter and downtime; Application: Main disconnects in large industrial panels. Feature: Three-pole, three-wire 240 V configuration; Business Impact: Provides balanced three-phase protection and simplifies wiring diagrams, speeding commissioning and maintenance; Application: Motor control centers and process lines. Feature: NEMA 12, NEMA 3R enclosure in painted galvanized steel; Business Impact: Delivers dust-tight indoor protection and weather-resilient outdoor capability, lowering environmental risk; Application: Factory floors, outdoor substations, and wet/dust-prone environments. Feature: Fusible without neutral with Class L fusing; Business Impact: Enables selective protection and easier fuse replacement, reducing nuisance trips and downtime; Application: Heavy-duty motor circuits with straightforward fuse coordination. Feature: UL Listed certification and substantial dimensions; Business Impact: Supports regulatory compliance and long-term lifecycle planning; Application: Process industries requiring documented conformity and robust protection. Feature: Window feature for fuse status; Business Impact: Quick visual verification minimizes maintenance time and reduces unplanned outages; Application: Safe, rapid fault diagnosis during inspections.
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FAQs
Yes. The DD328FDKW is a three‑pole, three‑wire device designed for 240 V three‑phase systems. It supports conductor sizes up to four 1/0 AWG per phase or up to four 750 kcmil conductors, enabling flexible wiring for large motor and drive applications. Ensure proper torque and enclosure clearance during installation to maintain safety clearances and allow fuse access.
The unit employs an indoor/outdoor capable NEMA 12, NEMA 3R enclosure, fabricated from painted galvanized steel. This combination provides dust-tight protection for interior panels and rain‑resistant, weather‑aware performance for outdoor or damp environments, reducing corrosion risk and extending service life in challenging facilities.
The DD328FDKW carries UL Listed certification, supporting safety compliance in most industrial settings. It aligns with standard practices for protective switching equipment and pairing with Class L fusing. When specifying for regulated facilities, verify that your plant electrical standards require UL Listings and pick compatible accessories and wiring methods accordingly.
The switch is rated for 1200 A at 240 V, with a horsepower rating of up to 500 hp for 3‑phase motors at 480/600 V. This makes it suitable as a main disconnect or control switch for high‑power motors and drives, offering robust protection while accommodating common industrial load profiles.
Eaton provides a warranty per policy 25‑000: one year from installation or eighteen months from shipment, whichever occurs first. For maintenance, replacement fuses, and field support, contact Eaton or authorized distributors. Structured maintenance planning helps minimize downtime and extends lifecycle reliability for critical plant equipment.