Eaton DD325NWKW-00V2 Fused Safety Switch - NEMA 4X
Part Number: DD325NWKW-00V2
Quick Summary
The Eaton DD325NWKW-00V2 fused safety switch isolates heavy loads reliably in industrial settings. This unit addresses uptime and safety challenges by providing durable, easy-to-service isolation for large motors and equipment. UL Listed certification and a NEMA 4X, 304 stainless steel enclosure deliver rugged protection in wet, dusty environments while maintaining visibility through a voltage indicator on the load side with a window. The 400 A rating, three-pole configuration, and four-wire design support streamlined wiring and safer disconnection, helping plants comply with safety standards. In practice, this means reduced downtime, simpler maintenance, and safer commissioning for industrial power distribution and motor-control applications.
Product Information
Extended Description
DD325NWKW-00V2 Eaton: Eaton Double door single-throw fused safety switch, Voltage indicator load side, 400 A, NEMA 4X, w/ neutral, Three-pole, Four-wire, 240 V, Max Hp: 250, 350 hp (3PH @480/600 V), (2)#1/0(1)#1/0-(2)300 kcmil-#1/0, or (1)175 kcmil-#1/0
Product Name
Eaton double door single-throw fused safety switch
Catalog Number
DD325NWKW-00V2
UPC
786679184240
Product Length/Depth
16.41 in
Product Height
24.32 in
Product Width
72.46 in
Product Weight
219 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
400A
Fuse class provision
Class H
HP rating - max
250, 350 hp (3PH @480/600 V)
Voltage rating
240V
Product Category
Watertight
Special features
V indicator load side, w/ window
ARMS Enclosed Circuit Breaker
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Eaton Specification Sheet - DD325NWKW-00V2
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: 400 A amperage rating enables robust protection for high-current loads, reducing fuse failures and unplanned outages in critical motors and conveyors; improves overall plant reliability when integrated into motor control schemes. Application: heavy machinery rooms and process lines requiring dependable isolations. Feature → Business Impact → Application: Three-pole, four-wire configuration simplifies wiring and SCADA compatibility while enabling clear fault isolation paths; supports modular expansion and easier compliance with wiring standards. Application: mid-to-large switchgear assemblies and MCCs. Feature → Business Impact → Application: Fusible with neutral fuse configuration provides selective protection and fault clearing; reduces nuisance tripping and improves coordination with upstream protection. Application: packaging lines and pump stations needing precise protection. Feature → Business Impact → Application: NEMA 4X, 304 stainless steel enclosure offers corrosion and washdown resistance, lowering environmental maintenance costs; extends service life in harsh environments. Application: food & beverage, chemical, and outdoor installations. Feature → Business Impact → Application: Voltage indicator load side with window enables quick status checks without opening the enclosure; enhances safety and reduces inspection time. Application: routine maintenance and panel status reviews within manufacturing floors.
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FAQs
Plan for a wall or floor-mounted installation with adequate clearance for door operation and wiring access. The unit uses a 304 stainless steel NEMA 4X enclosure, suitable for washdown and dusty environments. Ensure proper wiring within the three-pole, four-wire configuration and have Class H fuses on hand for quick replacement. The load-side voltage indicator window should remain accessible for status checks without opening the enclosure.
The 400A rating supports heavy-duty motor circuits, while 240V enables common industrial control voltages. For higher horsepower motors, refer to the HP rating of 250 and 350 HP at 480/600V to verify coordination with upstream protection. Use the fused neutral configuration to ensure proper fault clearing and safe disconnection during maintenance or emergencies.
Yes. The DD325NWKW-00V2 features UL Listed certification and a NEMA 4X enclosure made from 304 stainless steel, designed to resist corrosion, water ingress, and washdowns. This combination supports reliable operation in harsh environments such as outdoor installations, chemical plants, and food/beverage facilities.
Routine maintenance focuses on fuse replacement and periodic integrity checks of the neutral connection. Keep a stock of Class H fuses and inspect the voltage indicator window for proper visibility. Regularly verify enclosure seals and door hardware to maintain the NEMA 4X rating, and document any maintenance to support traceability and warranty requirements.
The rugged 304 stainless steel NEMA 4X enclosure, UL Listed certification, and visible load-side indicator reduce maintenance time and the risk of unplanned outages. Its robust amperage rating and clear wiring provide reliable protection for motors and pumps, lowering downtime costs, simplifying commissioning, and extending service life in demanding facilities.