Eaton DD328FDKW-00V3 fused safety switch - UL Listed
Part Number: DD328FDKW-00V3
Quick Summary
Eaton fused safety switch provides robust isolation for 3‑phase power systems in manufacturing and heavy industry. Operators often encounter downtime from undersized disconnects or noncompliant protection that slows repair and raises risk. This model carries UL Listed certification and is designed for NEMA 12 and NEMA 3R environments, with Class L fusing. With a 1200 A rating at 240 V in a three‑pole, fusible configuration and a windowed load indicator, it supports reliable protection and straightforward maintenance. Designed for compatibility with up to four conductors sizes (#1/0–750 kcmil) and a heavy‑duty enclosure, it streamlines installation and future upgrades. This level of protection reduces risk and helps keep critical processes online, even during maintenance windows.
Product Information
Extended Description
DD328FDKW-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, 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-00V3
UPC
786679184400
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
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 - DD328FDKW-00V3
Feature: Heavy‑duty three‑pole, fusible without neutral design delivers clear isolation between line and load. Business Impact: Reduces fault propagation, minimizes arc flash exposure, and simplifies safe servicing by technicians. Application: Ideal for large motor drives and 3‑phase equipment in steel, process, and material handling facilities. Feature: 1200 A amperage rating and 240 V operation supports high‑load circuits without undersizing protective devices. Business Impact: Enables scalable protection for future line upgrades while preserving short‑circuit current breaking capacity. Application: Suitable for plant expansions and equipment modernization where high current demands exist. Feature: NEMA 12 and NEMA 3R enclosures with painted galvanized steel provide dust protection and moisture resistance. Business Impact: Extends service life in harsh environments and reduces maintenance cycles. Application: Use in dusty floors, outdoor equipment, and washdown areas where reliability matters. Feature: Class L fuse provision and load‑side voltage indicator with a viewing window improve fault diagnosis and fuse replacement speed. Business Impact: Lowers downtime during maintenance and ensures accurate protect‑point monitoring. Application: Critical in automation lines and packaging systems requiring quick, verified isolation. Feature: Size‑aware electrical performance with 500 HP rating (3PH @ 480/600 V) and 4/0–750 kcmil conductor compatibility. Business Impact: Supports large motors and feeders with flexible wiring options, reducing need for intermediate disconnects. Application: Heavy machinery, compressors, conveyors, and press lines where motor horsepower and conductor sizes vary. Feature: UL Listed certification and documentation alignment with safety standards simplifies audits and compliance. Business Impact: Accelerates procurement approvals and reduces risk of non‑compliant installations. Application: Industrial facilities aiming for formal safety certifications and traceable protection devices.
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FAQs
Plan for a sturdy, level mounting location with enough clearance for the 91.02 in width and access to the load‑side window. Verify conductor sizes from #1/0 to 750 kcmil and three‑wire, three‑pole configuration. Ensure the panel is UL Listed compatible and that wiring follows local codes for 240 V three‑phase systems. Allow space for maintenance and future wiring changes, and use the three‑pole arrangement to maintain proper phase alignment.
The device is rated for 1200 A at 240 V with a three‑pole, three‑wire configuration and fusible without neutral. It uses Class L fuse protection and supports up to 500 HP for motors at 480/600 V. Enclosures are NEMA 12 and NEMA 3R, built from painted galvanized steel, and the unit weighs approximately 575 lb with dimensions of roughly 27.18 in length, 43.11 in height, and 91.02 in width.
Yes, it is designed for heavy industrial environments requiring robust 3‑phase protection, such as manufacturing lines, conveyors, and large motor drives. Its NEMA 12/3R enclosure and UL Listed certification meet common industry standards, while the three‑pole fusible configuration supports reliable isolation and safe maintenance, making it well suited for plant floors, warehouses, and process automation facilities.
The switch is UL Listed, offering recognized safety and reliability. Its NEMA 12 and NEMA 3R enclosure ratings provide environmental protection against dust and moisture. The Class L fuse provision ensures appropriate selectivity and protection for large motor loads, supporting compliance with electrical protection standards in industrial facilities.
Regular maintenance is simplified by the load‑side voltage indicator window, enabling quick fault verification. The fused, 1200 A protection minimizes unplanned downtime by preventing cascading faults. A robust enclosure reduces corrosion and wear in harsh environments. Overall, the device supports longer equipment life, lower outage duration, and faster service, contributing to a favorable return on investment over time.