Eaton DH364NWKX Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH364NWKX
Quick Summary
Eaton heavy duty fusible safety switch protects motors and equipment by safely interrupting power in harsh industrial environments. For engineers facing corrosion, washdown exposure, and downtime, this durable switch reduces unplanned outages and maintenance costs. UL Listed and NEC 230.62 barrier compliant, it features a NEMA 4X EnviroLine stainless enclosure for outdoor and tough interior installations. With a 200 A rating and 600 V capacity, it supports up to 50, 50/125, or 150 hp on three‑phase systems while offering a neutral-enabled, four‑wire configuration that simplifies wiring, improves safety, and aligns with stringent warranty requirements. This combination delivers reliable protection and long-term operational value across demanding industrial applications.
Product Information
Extended Description
DH364NWKX Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, 200 A, NEMA 4X, EnviroLine stainless, Neutral, Three-pole, Four-wire, 600 V, Max Hp: 50, 50/ 125, 150 hp (1/3PH @480, 600 V), #6-300 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH364NWKX
UPC
782114224267
Product Length/Depth
11.63 in
Product Height
35.38 in
Product Width
15.5 in
Product Weight
61 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
EnviroLine stainless
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
200A
HP rating - max
50, 50/ 125, 150 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
600 V
Product Category
Heavy Duty, Harsh Environment - EnviroLine
Enclosure and corrosion resistance deliver real business value by reducing maintenance cycles and downtime in harsh environments. The EnviroLine stainless NEMA 4X enclosure protects against washdowns and corrosive exposure, increasing equipment uptime in outdoor substations and chemical plants. The result is lower lifecycle costs and more predictable production schedules, with installation confidence in environments previously deemed challenging. The 200 A, 600 V rated switch supports motors up to 50/125/150 hp (1/3 PH at 480–600 V), enabling a single, adaptable control point for moderate to large motor loads, reducing panel complexity and inventory. A fusible with neutral configuration and Class H fuse provision improves fault isolation and ensures rapid, code-compliant disconnection, minimizing arc flash risk and easing regulatory documentation. Engineers benefit from a compact footprint and straightforward mounting for space-constrained enclosures, enabling faster project execution and reduced installation risk. Compatibility with UL standards and NEC barrier requirements further reinforces procurement confidence and reduces supplier risk in regulated environments. The product’s overall design emphasizes reliability, with a proven track record in harsh environments where equipment downtime equates to tangible cost. The DH364NWKX is optimized for installation where corrosion resistance, robust protection, and dependable performance matter most, such as food processing lines, water treatment facilities, and outdoor power distribution.
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FAQs
The DH364NWKX is a three-pole, four-wire fusible safety switch with a neutral, designed for 200 A service at up to 600 V. It accepts Cu/Al conductors from #6 to 300 kcmil, and its compact footprint (11.63 in depth, 15.5 in width, 35.38 in height) simplifies panel integration and wiring layouts while maintaining code-compliant protection.
Yes. The DH364NWKX is UL Listed and features a NEC 230.62 barrier-compliant enclosure. Its NEMA 4X EnviroLine stainless housing is specifically designed for outdoor or washdown environments, providing corrosion resistance and durable protection in harsh industrial settings.
Eaton provides a standard warranty policy of one year from the date of installation or eighteen months from the date of shipment, whichever occurs first. This coverage aligns with Eaton policy 25-000 and supports warranty claims when installed under normal operating conditions.
The switch handles up to 200 A and 600 V, supporting motors in the 50, 50/125, and 150 hp range for three-phase systems (1/3 PH @ 480/600 V). This enables a single protective device to service multiple motor sizes while maintaining robust fault protection and simple maintenance.
The EnviroLine stainless enclosure provides superior corrosion resistance and washdown durability, meeting NEMA 4X requirements. This makes the DH364NWKX ideal for outdoor, chemical processing, water treatment, and other challenging environments where humidity, chemicals, and salt spray can degrade standard steel enclosures.