Eaton DD328NWKW-00V3 Fused Safety Switch - UL Listed
Part Number: DD328NWKW-00V3
Quick Summary
Eaton DD328NWKW-00V3 fused safety switch provides robust electrical isolation for heavy-duty equipment. Operators and maintenance teams struggle with safe lockout, moisture ingress, and downtime caused by unclear status. It carries UL Listed certification and a NEMA 4X stainless-steel enclosure suitable for washdowns, with Class L fuse protection. Designed for 1200 A at 240 V in a three-pole, four-wire configuration, it scales from MCCs to complex control panels while improving safety and reliability. The product’s compatibility with standard Eaton switchgear and its clear voltage indicators help reduce installation time and total cost of ownership.
Product Information
Extended Description
DD328NWKW-00V3 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator line and load side, 1200 A, NEMA 4X, Class L, Fusible with neutral, Three-pole, Four-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
DD328NWKW-00V3
UPC
786679184530
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 4X
Enclosure material
304 stainless steel
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
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
Watertight
Special features
V indicator line and load side, w/ window
Double Door Line Isolation Safety Switch
Double Door Line Isolation Safety Switch
Double Door Line Isolation Safety Switch
Double Door Line Isolation Safety Switch
Double Door Line Isolation Safety Switch
Eaton Specification Sheet - DD328NWKW-00V3
Enclosure durability is ensured by a 304 stainless steel NEMA 4X enclosure, protecting against washdowns and corrosive environments. This reduces corrosion-related maintenance and extends service life, enabling reliable operation in食品 processing, water/wastewater treatment, and chemical processing facilities. High current capability (1200 A) and a 500 hp max rating at 480/600 V support large motor loads within a single, centralized safety switch, simplifying control architecture and reducing the need for parallel devices in motor control centers. The fusible with neutral configuration and Class L fuse provision provides selective protection and coordinated shutdown for multi-circuit feeders, improving safety and lowering fault propagation risk in demanding installations. A 240 V three-pole, four-wire arrangement aligns with common plant electrical distributions, enabling straightforward integration with existing MCCs and panel boards. Voltage indicator line and load side with a window delivers quick status verification, speeding maintenance and reducing energization risks. At 575 lb, the unit is designed for robust, semi-permanent installation and long-term reliability, with Eaton’s one-year warranty program offering additional peace of mind for OEMs and end users.
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FAQs
The DD328NWKW-00V3 is a three-pole, four-wire fused safety switch rated for 1200 A at 240 V, designed to integrate with motor control centers (MCCs) and standalone line isolation tasks. It utilizes a fusible-with-neutral configuration and includes line/load voltage indicators to simplify panel layout. Ensure proper mounting clearance and enclosure sealing per NEC guidelines to maintain NEMA 4X integrity.
This model is UL Listed and features a NEMA 4X enclosure constructed from 304 stainless steel. It uses a fusible-with-neutral configuration with Class L fuse provision, three poles and four wires, and operates at 240 V. It supports up to 500 hp motors at 480/600 V and a 1200 A service, aligning with standard industrial safety requirements.
Eaton provides a standard warranty under policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For maintenance, inspect enclosure integrity, confirm the voltage indicator window is legible, and verify fuse condition. The durable 304 stainless steel, combined with the NEMA 4X seal, minimizes ingress and corrosion between PM cycles.
Plan for a large footprint: 27.18 in depth, 43.11 in height, and 91.02 in width, with a total weight of 575 lb. Ensure structural support and mounting provisions are adequate, and route line and load conductors to keep the voltage indicator window accessible. Adhere to lockout/tagout procedures and NEC/OSHA guidelines to optimize safety and compliance.
The DD328NWKW-00V3 protects up to 1200 A and 500 hp motors, reducing downtime from electrical faults and improving reliability in critical lines. Its washdown-ready NEMA 4X enclosure lowers corrosion-related maintenance costs, while the visible voltage indicator accelerates fault diagnosis and repair, delivering lower labor hours and a faster return on investment for OEMs and end users.