Eaton DH365NPKW Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH365NPKW
Quick Summary
Eaton DH365NPKW is a heavy duty fusible safety switch designed for protective isolation in industrial power distributions. This model addresses common maintenance and downtime challenges by delivering enhanced blade visibility and a rugged NEMA 4 enclosure for rugged environments. UL Listed certification and Class H fuse provisions support reliable protection, while the 3-pole, 4-wire configuration with a 600 V rating aligns with demanding panel and machine circuits. By combining robust construction with straightforward installability, the DH365NPKW offers a clear path to safer operation, reduced startup risk, and improved lifecycle performance in industrial electrical protection and circuit control applications.
Product Information
Extended Description
DH365NPKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blades, 400 A, NEMA 4, Class H, Neutral, Three-pole, Four-wire, 600 V, Max Hp: 250, 350 hp (3PH @480/600 V), (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
DH365NPKW
UPC
782114357422
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 4
Enclosure material
Painted 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
250, 350 hp (3PH @480/600 V)
NEMA rating
NEMA 4
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Feature → Business Impact → Application: Enhanced visible blades improve maintenance safety and reduce inspection time, translating to lower risk of accidental contact and faster service. This feature supports quick verification during routine lockout/tagout procedures in high-availability lines, especially in food processing or packaging lines where uptime matters. Feature → Business Impact → Application: 400 A continuous amperage rating provides substantial current handling for large motors and feeders, enabling more compact switchgear footprints and reduced panel congestion in metal fabrication facilities. Feature → Business Impact → Application: 3-pole, 4-wire configuration with neutral supports complex motor control and multi-branch circuits common in plastics manufacturing and material handling environments, improving system reliability and simplifying wiring schemes. Feature → Business Impact → Application: NEMA 4 painted steel enclosure offers rain- and dust-resistant protection for outdoor installations or damp plant floors, lowering enclosure corrosion risk and safeguarding control circuits in wastewater treatment or mining operations. Feature → Business Impact → Application: UL Listed and Class H fuse provisions ensure compliance with safety standards and predictable fuse coordination, reducing compliance gaps and enabling faster procurement for regulated projects in chemical processing or heavy machinery contexts. Feature → Business Impact → Application: 600 V maximum rating and horsepower compatibility (250, 350 hp @ 480/600 V) support high-performance drives, enabling engineers to select a single switch for multiple motor sizes, which lowers spare-part inventories and accelerates project timelines.
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FAQs
The DH365NPKW is designed for three-pole, four-wire circuits with neutral, supporting 400 A at 600 V. For 2-pole configurations, use the outside poles of a 3-pole switch per Eaton’s catalog notes. Ensure enclosure is mounted on a stable surface and that wiring complies with local codes, torque specs, and the Class H fuse arrangement to maintain safe operation.
This safety switch provides a 400 A amperage rating, a 600 V maximum voltage rating, and HP ratings of 250 and 350 hp for 3-phase operation at 480/600 V. It is a 3-pole, 4-wire device with a neutral, suitable for heavy-duty industrial motor protection in demanding environments.
Yes, the DH365NPKW is UL Listed, signaling compliance with widely recognized electrical safety standards. This certification supports safe installation, predictable performance, and eligibility for use in regulated industrial projects. It also pairs with the NEMA 4 enclosure to address environmental protection requirements in both indoor and outdoor settings.
The unit measures 12.63 inches in depth, 57.63 inches in height, and 23 inches in width, with an approximate weight of 135 pounds. This footprint fits standard industrial spaces and supports installation in electrical rooms or protected outdoor areas, depending on environmental conditions and local code requirements.
The product carries Eaton's warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. For service, rely on Eaton’s support network for parts, fuse replacements (Class H), and any field maintenance needs, helping minimize downtime and sustain long-term performance.