Eaton DD326NDKW Fused Safety Switch - UL Listed
Part Number: DD326NDKW
Quick Summary
The Eaton DD326NDKW fused safety switch provides safe, high-capacity power control for industrial machinery and panel enclosures. Maintenance teams often wrestle with hard-to-isolate circuits and compliance gaps during machine shutdowns. UL Listed protection paired with a NEMA 12/3R enclosure rating ensures reliable performance in dusty and damp environments, while the fusible-with-neutral design supports precise fault isolation. Designed for 600 A service at 240 V with a three-pole, four-wire configuration, it supports up to 400–500 hp on 480/600 V lines. Its reinforced galvanized enclosure and status window simplify inspections and long-term maintenance, delivering clear business value for panel builders and OEMs.
Product Information
Extended Description
DD326NDKW Eaton: Eaton Double door single-throw fused safety switch, 600 A, NEMA 12/3R, Fusible with neutral, Three-pole, Four-wire, 240 V, Max Hp: 400, 500 hp (3PH @480/600 V), (1)#2(1)#2-(1)600, and (1)750 kcmil
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD326NDKW
UPC
786679183939
Product Length/Depth
19.31 in
Product Height
25.32 in
Product Width
77.96 in
Product Weight
265 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 with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty double door safety switch
Amperage Rating
600A
Fuse class provision
Class H
HP rating - max
400, 500 hp (3PH @480/600 V)
Voltage rating
240V
Product Category
Dust tight
Special features
w/ window
Double Up on Safety
Double Up on Safety
Double Up on Safety
Double Up on Safety
Double Up on Safety
Eaton Specification Sheet - DD326NDKW
Feature: 600 A amperage rating with Class H fuse. Business Impact: Robust fault isolation and protection for high-demand motors and equipment reduces risk of arc flash incidents and unplanned downtime. Application: Large industrial drives, conveyors, and machine centers requiring reliable isolation at 600 A. Feature: Fusible with neutral. Business Impact: Precise current interruption with a defined neutral path improves safety and system stability during switch-off. Application: Three-phase systems with neutral in packaging, material handling, and processing lines. Feature: Three-pole, four-wire configuration. Business Impact: Streamlines wiring, improves fault clearance paths, and supports standard panel layouts for faster installation. Application: Motor control centers and control panels in manufacturing environments. Feature: NEMA 12, NEMA 3R enclosure in painted galvanized steel. Business Impact: Durable protection against dust and moisture, extending life in shop floors and outdoor-rated installations. Application: Wood, metal, and automotive manufacturing floors where harsh conditions are common. Feature: Window feature. Business Impact: Visual status indicators enable quick PCB/logic checks during maintenance without opening the enclosure. Application: Regular preventive maintenance in high-availability lines. Feature: UL Listed. Business Impact: Compliance with safety and electrical standards lowers risk, simplifies audits, and supports procurement programs. Application: OEMs and integrators requiring formal certification for panel assemblies. Feature: HP rating up to 400–500 hp (3PH @480/600 V). Business Impact: Matches high-torques and high-power motors, reducing the need for multiple switches in large drives. Application: Heavy-duty industrial drives and large machine tools. Feature: Conductor compatibility and neutral options. Business Impact: Ability to accommodate large conductor sizes up to 750 kcmil enhances power delivery with lower voltage drop and robust termination. Application: High-capacity feeders feeding large motors and equipment in process lines. Feature: Large footprint and durable construction. Business Impact: Physical ruggedness lowers maintenance frequency and improves long-term reliability in demanding environments. Application: Industrial facilities with frequent operations and exposure to dust and moisture.
Get a Quick Quote for a Eaton DD326NDKW
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton DD326NDKW?
Enquire Now
FAQs
The DD326NDKW requires a three-pole, four-wire connection with neutral, designed for 240 V operation and a 600 A rating. Plan for a NEMA 12/3R enclosure with a galvanized steel body, ensure secure mounting for the 265 lb unit, and allow space for the window to enable status viewing during maintenance.
Key specs include a 600 A amperage rating, 240 V voltage rating, Class H fuse, three poles, four wires, and a maximum HP rating of 400–500 hp for 3-phase operation at 480/600 V. It is UL Listed and designed for heavy-duty motor protection with neutral support.
Yes. It features a NEMA 12, NEMA 3R enclosure with painted galvanized steel, and a window for status visibility, providing protection against dust and moisture on shop floors and in outdoor-rated installations.
The DD326NDKW is UL Listed, offering recognized safety certification. Its NEMA-rated enclosure supports reliable protection in dusty and damp environments, contributing to safer installations and easier audits for compliance with industry standards.
By delivering reliable isolation for large motors and high-demand circuits, the DD326NDKW reduces unplanned downtime, enhances worker safety, and simplifies maintenance with its window view and sturdy enclosure, yielding lower lifecycle costs and improved equipment uptime.