Eaton DH364FCK Heavy Duty Fusible Safety Switch - NEMA 4X UL Listed
Part Number: DH364FCK
Quick Summary
The Eaton DH364FCK heavy duty fusible safety switch protects 200 A circuits in harsh industrial environments. Engineers often struggle with nuisance trips, difficult maintenance, and compliance gaps in service entrances. This unit is UL Listed and designed with a NEMA 4X non-metallic KRYDON enclosure, plus Class H fuses for robust, long-life protection. It also supports NEC 230.62 compliant barriers for safer installations. Service-entrance use is enabled with a neutral or ground lug kit, and its three-pole, three-wire configuration suits 600 V systems. The combination of rugged construction and precise ratings delivers reliable uptime, simplified wiring, and predictable maintenance cycles for electrical protection and control installations.
Product Information
Extended Description
DH364FCK Eaton: Eaton Heavy duty single-throw fused safety switch, 200 A, NEMA 4X, Non-metallic, KRYDON, Class H, Fusible without neutral, 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
DH364FCK
UPC
782114296103
Product Length/Depth
16.46 in
Product Height
27.25 in
Product Width
24.25 in
Product Weight
77 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
Catalog Notes
Suitable for service entrance use with a neutral or ground lug kit installed
Enclosure
NEMA 4X
Enclosure material
Non-metallic, KRYDON
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 (Non-Metallic)
Voltage rating
600 V
Product Category
Heavy Duty, Harsh Environment - EnviroLine
Feature: NEMA 4X non-metallic KRYDON enclosure. Business Impact: Provides resistance to corrosion, moisture and harsh washdown environments, reducing enclosure ingress and maintenance costs. Application: Ideal for outdoor A/C substations, washdown areas, and harsh factory floors where reliability matters. Feature: 200 A amperage rating with three-pole, three-wire configuration. Business Impact: Supports heavy-duty motor protection and safe isolation for large loads, enabling smooth startup sequences and reduced downtime. Application: Main service disconnects in industrial plants and control panels. Feature: Fusible without neutral with Class H fuse provision. Business Impact: Offers selective protection and simpler fuse replacement, lowering total cost of ownership and improving fault clearances. Application: Critical process lines and machine centers requiring rapid protection. Feature: 600 V voltage rating and compatibility with 50/125/150 HP at 1/3PH specifications. Business Impact: Enables compatibility with a wide range of motors and drives, enhancing project flexibility and future-proofing. Application: Medium- to high-power equipment in manufacturing cells. Feature: NEC 230.62 compliant barrier and UL Listed. Business Impact: Improves safety compliance, easing regulatory audits and helping maintain insurance coverage. Application: Service entrances and panel installations in commercial and industrial facilities. Feature: Enclosure supports service-entrance use with neutral or ground lug kit. Business Impact: Simplifies field wiring and reduces installation time, cutting labor costs. Application: New panels or retrofits in commercial buildings and process plants.
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FAQs
DH364FCK is designed for service entrance use with a neutral or ground lug kit installed, simplifying field wiring and ensuring compliant, safe disconnects. When selecting a lug kit, verify the enclosure’s knockouts and torque specs for #6–300 kcmil Cu/Al conductors to maintain UL Listings and proper fault clearance times.
Key ratings include a 200 A amperage, 600 V voltage rating, and three-pole, three-wire configuration. It uses Class H fuses and is compatible with up to 50/125/150 hp at 1/3PH @480–600 V. These specs enable reliable motor protection, fast fault clearing, and compatibility with common industrial drive systems.
Yes. It features a NEMA 4X enclosure with KRYDON non-metallic material, providing corrosion and moisture resistance. UL Listed and NEC 230.62 compliant barriers further support safe service-entrance installations in harsh environments, making it a solid choice for outdoor or washdown areas.
The DH364FCK is UL Listed and designed to meet NEC 230.62 barrier requirements, with a NEMA 4X enclosure that suits harsh environments. These certifications help with regulatory audits, insurance compliance, and safe operation in industrial facilities.
Expect reduced downtime due to robust construction, long-life Class H fuses, and easy fuse replacement in a service entrance configuration. The UL listing and rugged enclosure minimize maintenance intervals, while compatibility with 600 V motors and up to 150 hp improves system uptime and overall return on investment.