Eaton DH365NWK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH365NWK
Quick Summary
Eaton heavy duty fusible safety switch provides rugged, code-compliant isolation for large electrical loads in industrial facilities. Many buyers wrestle with equipment that struggles in demanding environments, risking unplanned downtime and costly maintenance. UL Listed and a NEMA 4X, 304 stainless steel enclosure ensure reliable performance in harsh wash-downs and outdoor spaces. With a 600 V rating and 400 A capacity, this unit supports scalable motor control and simplifies panel design for high-value projects. This combination of rugged protection and proven certification helps reduce lifecycle costs and keep critical processes running smoothly.
Product Information
Extended Description
DH365NWK Eaton: Eaton Enhanced visible blade single-throw safety switch, 400 A, NEMA 4X, 304 stainless steel, 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
DH365NWK
UPC
782114357415
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
250, 350 hp (3PH @480/600 V)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH365NWK
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: NEMA 4X, 304 stainless steel enclosure provides excellent corrosion resistance and wash-down compatibility. Business Impact: Reduces maintenance cycles and downtime in outdoor or humid facilities, lowering total cost of ownership. Application: Ideal for outdoor switchgear, chemical plants, and food processing environments where cleanliness and corrosion resistance are essential. Feature: Fusible with neutral and Class H fuse configuration delivers precise overcurrent protection. Business Impact: Improves safety margins and minimizes electrical noise during fault events, helping protect motors and drives. Application: Large industrial motors, process lines, and 3PH power distribution where reliable protection is needed. Feature: Three-pole, four-wire design supports robust power control with a dedicated neutral. Business Impact: Enables reliable control of multi-wire systems and straightforward integration into existing panels. Application: Industrial control cabinets and machine centers requiring neutral-based protection. Feature: Amperage rating of 400 A with HP capability up to 350 hp at 3PH 480/600 V. Business Impact: Supports high-load applications, reducing the need for alternative switching devices and simplifying design. Application: Heavy-duty motor feeders and process equipment in manufacturing. Feature: UL Listed and 600 V rating provide compliance and performance confidence. Business Impact: Facilitates code compliance and reduces risk during audits, while supporting longer service life. Application: Any regulated facility seeking reliable protection in harsh environments. Feature: Large conductor capacity (2/0–750 kcmil Cu/Al ranges) enables feeder upgrades without panel rewiring. Business Impact: Extends lifecycle of electrical infrastructure and minimizes retrofit costs. Application: Upgrading existing systems to higher horsepower or longer feeders in plant settings.
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FAQs
The DH365NWK is a three-pole, fusible safety switch with neutral, designed for 4-wire three-phase systems. It supports a neutral conductor, enabling safe, code-compliant isolation for motors and feeders in industrial panels. It is suitable for 480/600 V service and aligns with common plant electrical architectures, simplifying integration into existing switchgear.
The device provides a 400 A amperage rating and a 600 V voltage rating. Its maximum horsepower rating is 250 to 350 hp for three-phase operation at 480/600 V, making it suitable for high-power motor control. It uses a Class H fuse and a fusible-with-neutral configuration to deliver reliable overcurrent protection.
This switch excels in harsh environments such as outdoor installations, wash-down areas, and chemical or food-processing facilities due to its NEMA 4X stainless enclosure. It is well-suited for heavy-duty motor control, process lines, and outdoor switchgear where corrosion resistance and robust protection are critical for uptime.
The DH365NWK is UL Listed and features a NEMA 4X enclosure made from 304 stainless steel, giving it excellent corrosion resistance. The combination supports compliance with safety standards and reliable operation in demanding environments, while the Class H fuse adds a proven overcurrent protection strategy for large motors.
Eaton provides a warranty policy of one year from installation or eighteen months from shipment, whichever comes first. Routine maintenance centers on fuse replacement and periodic enclosure inspection. The device’s robust construction reduces corrosion-related downtime and simplifies replacement portions, contributing to lower lifecycle costs in demanding industrial settings.