Eaton DH364FWK316 Fusible Safety Switch - NEMA 4X
Part Number: DH364FWK316
Quick Summary
Eaton DH364FWK316 Fusible Safety Switch provides reliable overload protection for industrial control panels and motor circuits. In harsh environments, corrosion and moisture can threaten safety and uptime; this unit’s 316 stainless steel enclosure helps prevent that. UL Listed status and NEC 230.62 compliant barriers reinforce regulatory compliance in demanding facilities. With a three-pole, three-wire configuration and Class H fuse, it supports up to 200 A at 600 V, delivering robust protection without sacrificing installation efficiency. By combining rugged construction with straightforward installation, it offers meaningful business value through lowered maintenance costs and improved mean time between failures for plant operators and system integrators.
Product Information
Extended Description
DH364FWK316 Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, 200 A, NEMA 4X, Grade 316 stainless steel, Class H, Three-pole, Three-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
DH364FWK316
UPC
782116490004
Product Length/Depth
37.5 in
Product Height
11.5 in
Product Width
19 in
Product Weight
55 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 without neutral
Number Of Poles
Three-pole
Number of wires
3
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, Fusible without neutral
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH364FWK316
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The 316 stainless steel enclosure provides exceptional corrosion resistance, extending service life and reducing replacement cycles in wash-down, chemical processing, and coastal environments. This leads to lower total cost of ownership while maintaining safety integrity across shift operations and critical control panels. Feature → Business Impact → Application: NEMA 4X enclosure paired with UL listing ensures dependable protection against dust, water ingress, and electrical shocks, supporting compliance audits in food and beverage, water treatment, and pharmaceutical manufacturing. Feature → Business Impact → Application: Class H fuse and fusible without neutral configuration deliver precise overcurrent protection for three-pole, three-wire motor circuits up to 200 A and 600 V, enabling safer start-up sequences and minimized nuisance trips in conveyors, pumps, and HVAC systems. Feature → Business Impact → Application: 37.5 in depth, 11.5 in height, and 19 in width with a 55 lb footprint simplify installation alongside existing switchgear, enabling faster panel optimization and easier retrofits in OEM and retrofit projects. Feature → Business Impact → Application: 50/125/150 hp ratings at 1/3PH @480 V and 600 V provide scalable protection for medium-duty motors, reducing wear on starters and extending motor life in plastics processing, metal fabrication, and mining support equipment.
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FAQs
The DH364FWK316 is designed for three-pole, three-wire circuits with a fusible configuration that is fusible without neutral. It accepts Cu/Al conductors up to #6-300 kcmil and operates at up to 600 V with a 200 A rating. Installation should locate the switch within a NEMA 4X-rated enclosure, ensuring proper clearance and bonding per NEC guidelines to optimize safety and performance.
Key ratings include 200 A amperage, 600 V voltage, and HP protection up to 50, 50/125, and 150 hp for specific three-phase configurations. Protective features comprise a Class H fuse, corrosion-resistant 316 stainless steel enclosure, and UL Listing. The device is intended for reliable overload isolation and safe disconnection in demanding industrial environments.
This switch is well-suited for industrial control panels and motor circuits in sectors such as manufacturing, water treatment, food and beverage, chemical processing, and mining support equipment. Its NEMA 4X enclosure and corrosion resistance make it ideal for wash-down areas, coastal facilities, and other harsh environments where durability and safety are critical.
The switch is UL Listed and NEC 230.62 compliant, with a NEMA 4X enclosure and 316 stainless steel construction. These certifications simplify procurement by meeting widely adopted safety and installation requirements, reducing the need for additional certifications and accelerating project approvals for industrial facilities aiming for compliant, long-life equipment.
Maintenance needs are typically lower due to corrosion-resistant construction and robust enclosure protection, translating to longer service intervals and reduced downtime. The unit’s warranty (one year from installation or 18 months from shipment) adds assurance. ROI arises from improved uptime, lower replacement costs, and predictable maintenance for motor control and power distribution in demanding plants.