Eaton DH365NWK316 Heavy Duty Fusible Safety Switch -NEMA 4X
Part Number: DH365NWK316
Quick Summary
Eaton DH365NWK316 heavy duty fusible safety switch protects motors and personnel in demanding industrial environments. Maintenance downtime and corrosion risk are common headaches; this unit's 316 stainless enclosure helps extend service life and reduce unscheduled outages. UL Listed, NEC 230.62 barrier compliance, and NEMA 4X protection ensure safe operation in washdown, dusty, and harsh locations. With a 600 V rating and Class H fuses, it delivers reliable isolation for critical drive systems while offering straightforward installation and dependable service life, supporting lower total cost of ownership. This model is ideal for heavy-duty distribution, process lines, and washdown areas where durability and compliance drive uptime.
Product Information
Extended Description
DH365NWK316 Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, 400 A, NEMA 4X, 316 stainless, 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
DH365NWK316
UPC
782116490097
Product Length/Depth
57.5 in
Product Height
12.38 in
Product Width
27.5 in
Product Weight
175 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.
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
316 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
316 stainless steel enclosure provides corrosion resistance and rugged durability in challenging environments. This reduces maintenance frequency and extends service life, especially in washdown zones and outdoor installations, delivering longer intervals between replacements and lower lifecycle costs. The 400 A amperage rating and HP ratings up to 350 hp at 480/600 V enable direct protection for large motors and drive systems, supporting streamlined wiring and improved fault isolation in demanding applications such as conveyors and extruders. Class H fuse provision with fusible configuration and neutral simplifies wiring, enables safe three-pole four-wire operation, and supports selective coordination for safer, faster fault response in motor control centers. UL Listed and NEC 230.62 barrier compliance provide essential safety and regulatory alignment, while NEMA 4X enclosure adds washdown and dust resistance for harsh environments. Dimensions and weight (57.5 in deep, 27.5 in wide, 12.38 in high, 175 lb) support straightforward planning and mounting within standard switchgear footprints, improving installation efficiency and total cost of ownership. This model is compatible with 600 V systems and heavy-duty distribution panels, delivering reliable protection with minimal nuisance tripping and easier maintenance planning.
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FAQs
When installing the DH365NWK316, plan for its three-pole four-wire configuration and neutral integration to ensure safe isolation. The unit is designed for 600 V systems and heavy-duty panels, so verify compatibility with your drive components, wiring methods, and mounting footprints. Use the 57.5 in depth, 27.5 in width, and 12.38 in height dimensions to space against adjacent equipment and maintain proper clearance for service access.
Key specs include a 400 A amperage rating, 600 V voltage rating, and horsepower protection up to 350 hp for 3-phase motors at 480/600 V. The unit features a Class H fuse provision and neutral, enabling safe, coordinated protection for large motors and associated drive systems, with neutral included for balanced three-wire circuits. It is UL Listed and suited for demanding industrial drives.
Yes. The enclosure is constructed from 316 stainless steel and rated NEMA 4X, providing excellent corrosion resistance and washdown suitability. This makes it ideal for environments with high humidity, chemical exposure, or frequent cleaning, such as food & beverage, pharmaceutical, and chemical processing facilities, while maintaining protective performance and longer service life.
The DH365NWK316 is UL Listed and compliant with NEC 230.62 barrier requirements, ensuring code-aligned motor control safety. The NEMA 4X enclosure adds environmental protection for wet, dusty, and corrosive settings. These certifications help streamline procurement, reduce risk during audits, and support installation in regulated facilities without extensive additional testing.
The DH365NWK316 reduces maintenance frequency through its corrosion-resistant enclosure and robust, long-life components, lowering replacement and downtime costs. Its 600 V rated protection and UL-listed status simplify compliance and diagnostics, cutting repair times. While the upfront cost may be higher than non-fusible switches, total cost of ownership decreases due to fewer outages and extended motor life.