Eaton DH325NWKW Heavy Duty Safety Switch - NEMA 4X
Part Number: DH325NWKW
Quick Summary
Eaton DH325NWKW heavy duty fusible safety switch provides reliable power isolation for 3-phase industrial control panels. In harsh environments, inconsistent enclosures and maintenance downtime can compromise safety and uptime. UL Listed and built in a NEMA 4X stainless enclosure deliver rugged protection for washdown and corrosive settings. With a 400 A rating at 240 V and a three-pole, four-wire design including neutral, it supports scalable motor control and safer isolation in demanding installations. The Class H fuse provision with fusible-with-neutral configuration simplifies integration with existing switchgear while maintaining fault-clarity and serviceability. For OEMs and maintenance teams, this model combines robust protection with straightforward installation, translating to lower total cost of ownership and fewer field failures.
Product Information
Extended Description
DH325NWKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blade, 400 A, NEMA 4X, 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
DH325NWKW
UPC
782114140918
Product Length/Depth
12.63 in
Product Height
57.63 in
Product Width
23 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
Catalog Notes
For 2-pole applications; use outside poles of 3-pole switch
Enclosure
NEMA 4X
Enclosure material
305 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: 400 A amperage rating at 240 V with a three-pole, four-wire design including neutral. Business impact: enables safe isolation of high‑current motors and feeders while supporting coordinated protections and reduced wiring complexity. Application: large‑capacity conveyors, pumps, and process equipment in industrial environments. Feature: NEMA 4X stainless steel enclosure (305 stainless) for washdown and corrosive environments. Business impact: minimizes maintenance, downtime, and corrosion-related failures, extending service life. Application: food and beverage, chemical processing, and outdoor installations. Feature: Fuse class provision Class H and fusible-with-neutral configuration. Business impact: simplifies wiring, allows selective isolation, and preserves clear fault pathways for faster service. Application: integration with existing switchgear and panel assemblies. Feature: UL Listed certification and documented protection ratings. Business impact: compliance with industrial safety standards and faster approval in regulated facilities. Application: plant upgrades, new builds, and OEM panel enclosures. Feature: Overall dimensions and weight (57.63 in x 23 in x 12.63 in; 135 lb) provide predictable footprint for planning and installation. Business impact: smoother retrofits and cabinet space optimization. Application: OEM and retrofit projects requiring precise space budgeting. Feature: Neutral presence and external poles usage guidance (2-pole applications; use outside poles of 3-pole switch). Business impact: flexibility in design and future expandability. Application: modular switchgear configurations in evolving automation layouts.
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FAQs
Install the DH325NWKW as a three‑pole switch with four wires, including a neutral. Follow the enclosure’s NEMA 4X installation guidance, align with the 240 V supply, and connect the neutral conductor per the fuse configuration. The 400 A rating supports high‑current motors; ensure upstream protections are coordinated with the Class H fuse provisions for safe isolation.
Verify 400 A amperage rating, 240 V voltage, three‑pole configuration with neutral, and four‑wire capability. Confirm UL Listed certification and the NEMA 4X stainless enclosure to ensure suitability for washdown and corrosive environments. Check HP ratings (50, 125/50 hp for 3PH @Std, TD/250 Vdc) for motor aligning with your load requirements.
Yes. The enclosure is NEMA 4X and constructed from 305 stainless steel, designed to withstand washdown and corrosive environments. This makes it well suited for food and beverage, chemical processing, and outdoor installations where moisture and contaminants are concerns.
The DH325NWKW is UL Listed, providing essential compliance for industrial safety standards. Its NEMA 4X stainless enclosure further supports protection against ingress in harsh environments. For project approvals, ensure coordination with your internal quality and safety teams to align with local codes and manufacturer recommendations.
By delivering reliable high‑current isolation, corrosion resistance, and simplified wiring, the DH325NWKW reduces maintenance downtime, extends service life, and minimizes field failures. Its lifecycle cost is lowered through fewer emergency repairs, easier retrofits, and predictable installation footprint, translating into measurable uptime gains and safer operations over the equipment’s life.