Eaton DH325NWK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH325NWK
Quick Summary
Eaton heavy duty fusible safety switch DH325NWK is engineered to protect industrial power distribution with reliable fault isolation. This solution helps engineering teams reduce unplanned downtime by delivering robust isolation in demanding environments. The device features a 400 A amperage rating, 240 V operation, and a three-pole, four-wire configuration with neutral, enabling precise control in complex panels. Its UL Listed certification and stainless steel enclosure provide corrosion resistance in wash-down and harsh locations. For projects requiring high reliability, the switch also supports up to 50 hp under standard AC conditions and strong DC compatibility. The combination of rugged build and documented specs translates to lower operating costs and faster commissioning.
Product Information
Extended Description
DH325NWK Eaton: Eaton Enhanced visible blade single-throw safety switch, 400 A, NEMA 4X, 304 stainless steel, Class H, Neutral, Three-pole, Four-wire, 240 V, Max Hp: 50, 125/ 50 hp (3PH @Std, TD/250 Vdc), (2)#1/0-(2)300 kcmil or (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH325NWK
UPC
782114375181
Product Length/Depth
57 in
Product Height
11 in
Product Width
27 in
Product Weight
135 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 class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
400A
HP rating - max
50, 125/ 50 hp (3PH @Std, TD/250 Vdc)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
Feature 1: 400 A amperage rating at 240 V with three-pole, four-wire configuration including neutral. Business impact: enables safe, coordinated isolation for large loads while maintaining system integrity. Application: ideal for mid-to-large industrial power distribution panels where precise fault isolation is critical. Feature 2: NEMA 4X enclosure built in 304 stainless steel. Business impact: provides superior corrosion and wash-down resistance, reducing maintenance cycles and downtime in challenging environments. Application: food & beverage, chemical processing, and water treatment facilities. Feature 3: Class H fuse provision with fusible configuration including neutral. Business impact: enhances selective tripping and protection coordination, lowering arc-flash risk and maintenance costs. Application: equipment with mixed load profiles and DC control circuits up to 250 Vdc. Feature 4: Robust footprint and construction—57 in depth, 11 in height, 27 in width, and a weight of 135 lb. Business impact: predictable installation footprint and durable field serviceability. Application: OEM panel builders and retrofit projects requiring reliable physical mount and serviceability. Feature 5: UL Listed along with stainless-steel enclosure provides assurance of electrical safety compliance and long service life. Business impact: accelerates procurement and commissioning while reducing compliance risks. Application: general industrial control systems and critical process lines. Feature 6: Max HP ratings of 50 HP (125/50 HP for certain 3PH std, TD/250 Vdc) demonstrate suitability for both legacy and modern drives. Business impact: supports diverse drive requirements and minimizes equipment refresh costs. Application: pump drives, fan systems, and mixer installations where high reliability is essential.
Get a Quick Quote for a Eaton DH325NWK
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 DH325NWK?
Enquire Now
FAQs
The DH325NWK is a three-pole, four-wire fusible safety switch with a neutral, designed to interrupt and isolate 3-phase power. This configuration supports safe disconnection of multi-phase loads and simplifies wiring in standard 240 V three-phase environments.
It is rated for 400 A at 240 V and supports up to 50 hp, with 125/50 hp ratings for specific 3PH standard and TD/250 Vdc conditions. This makes it suitable for a wide range of motors and drives in industrial applications.
The DH325NWK uses a NEMA 4X enclosure made from 304 stainless steel, providing excellent corrosion resistance. This makes it appropriate for wash-down areas, chemical processing, and other harsh environments where durability matters.
The switch is UL Listed, and it features a NEMA 4X stainless enclosure. UL Listing supports electrical safety compliance, while the 304 stainless steel construction and enclosure rating address durability and environmental requirements.
With a neutral-inclusive fusible design, Class H fuse provision, and a robust 57 in x 27 in x 11 in footprint weighing 135 lb, the DH325NWK offers straightforward installation, safer maintenance, and long service life in demanding facilities. Its accessible wiring and documented specs reduce commissioning time and ongoing downtime.