Eaton DH664FDKW Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH664FDKW
Quick Summary
Eaton DH664FDKW heavy duty fusible safety switch isolates power for industrial machinery in harsh commercial environments. Facilities often wrestle with space constraints, limited installation flexibility, and the need for safe, code-compliant disconnection. This unit ships UL Listed with a rugged NEMA 12/3R enclosure and cartridge fuse design, delivering reliable protection in dusty or damp settings. With a 200 A rating and six-pole, six-wire configuration, it enhances system reliability while reducing downtime and maintenance costs for heavy duty electrical protection and circuit control applications.
Product Information
Extended Description
DH664FDKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blade, 6 blade, 200 A, NEMA 12/3R, Cartridge, Six-pole, Six-wire, 600 V, Max Hp: 25-60, 50-125, 60-150 hp (3PH @240, 480, 600 V), 600 V, #6-300 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH664FDKW
UPC
786680181382
Product Length/Depth
35.38 in
Product Height
11.63 in
Product Width
24.46 in
Product Weight
65 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
Catalog Notes
Heavy Duty Safety Switch (HDSS), w/ Enhanced Visible Blade
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Cartridge
Fuse configuration
Fusible without neutral
Number Of Poles
Six-pole
Number of wires
6
Type
Heavy duty fusible safety switch
Amperage Rating
200A
HP rating - max
25-60, 50-125, 60-150 hp (3PH @240, 480, 600 V)
NEMA rating
NEMA 12/3R
Voltage - max
600 V
Voltage rating
600 V
Application
Heavy commercial and industrial
Series
K
Eaton Specification Sheet - DH664FDKW
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 200 A amperage rating; Business Impact: enables robust protection for mid-to-large industrial loads while minimizing fuse-related unplanned outages; Application: suitable for machines and equipment drawing significant current in harsh environments. Feature: Six-pole, six-wire configuration with cartridge fuse; Business Impact: simplifies wiring, improves fault isolation, and speeds field service with common cartridge fuses; Application: ideal for multi-line, three-phase systems in manufacturing plants. Feature: NEMA 12, NEMA 3R enclosure with painted galvanized steel; Business Impact: provides dependable dust, moisture, and ingress protection, reducing corrosion and downtime; Application: outdoor and workshop environments subject to moisture. Feature: Enhanced visible blade; Business Impact: quick-status verification reduces time to diagnose and reset after faults; Application: daily switching and routine maintenance in control panels. Feature: 600 V maximum, HP ratings up to 150 hp (3PH @240/480/600 V); Business Impact: broad compatibility with standard motor loads, improving procurement flexibility; Application: driving motors in conveyors, pumps, fans, and compressors. Feature: UL Listed and warranty terms; Business Impact: ensures code compliance and post-sale support with a defined policy; Application: compliance-driven projects in regulated facilities. Feature: Heavy-duty safety switch design meets industrial usage patterns; Business Impact: lowers lifecycle costs by delivering durable performance and predictable maintenance intervals; Application: installation in heavy commercial and industrial facilities.
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FAQs
Installation requires mounting the six-pole device in a compatible enclosure, wiring all six conductors to the cartridge fuse configuration, and confirming NEMA 12/3R protection for dust and moisture. Use the included Eaton datasheet and wiring diagrams, verify a 600 V rating, and follow local codes during commissioning to ensure safe operation and optimal fault isolation.
The DH664FDKW provides a 200 A amperage rating with a maximum voltage of 600 V. It supports motor horsepower ranges of 25–60 hp, 50–125 hp, and 60–150 hp for three-phase applications at 240, 480, and 600 V, making it suitable for a broad set of industrial motors and drives.
Yes. The unit is designed with a NEMA 12, NEMA 3R enclosure and a painted galvanized steel enclosure, offering protection against dust, splashing water, and other challenging conditions typically found in industrial and outdoor spaces.
Eaton provides a warranty under Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For service and replacement parts, reference the provided datasheet and Eaton’s warranty policy to ensure coverage and eligibility.
Download the Eaton Specification Sheet for DH664FDKW from Eaton's official site to view detailed electrical ratings, dimensions, wiring, and installation notes. Additional resources include the Selling Policy 25-000 document, which outlines warranty terms and distribution guidelines.