Eaton DH466FDK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH466FDK
Quick Summary
Eaton DH466FDK heavy duty fusible safety switch protects critical equipment and operators in demanding industrial environments. For maintenance teams, downtime and unsafe isolation pose costly risks, so a rugged, reliable solution is essential. UL Listed certification accompanies NEMA 12/3R protection and Class H fusing, delivering safe operation across 600 V systems. Four-pole, four-wire construction supports clean, organized wiring and straightforward protection of multi-motor feeds. The unit can be field modified to meet NEMA 3R rainproof requirements when needed, reducing panel depth and retrofit costs. This configuration is well suited for motors up to 400–500 hp at 480/600 V, aligning with project specs and procurement goals.
Product Information
Extended Description
DH466FDK Eaton: Eaton Heavy duty single-throw fused safety switch, 600 A, NEMA 12/3R, Class H, Four-pole, Four-wire, 600 V, Max Hp: 400, 500 hp (480,600 V @3PH), 600 V, (1)#2-(1)600 kcmil; and (1)#1/0-(1)750 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH466FDK
UPC
786685234977
Product Length/Depth
57 in
Product Height
11 in
Product Width
27 in
Product Weight
160 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
Can be field modified to meetNEMA 3R rainproof requirements when a factory provided drain hole is opened
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Fuse class provision
Class H
Fuse configuration
Fusible without neutral
Number Of Poles
Four-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
600A
HP rating - max
400, 500 hp (480,600 V @3PH)
NEMA rating
NEMA 12/3R
Voltage - max
600 V
Voltage rating
600 V
Product Category
Heavy Duty, Fusible without neutral
Feature: The DH466FDK supports a 600 A amperage rating for high-load motor circuits. Business Impact: Provides ample headroom to prevent nuisance trips, improving line reliability and production uptime. Application: Primary feeders for large motors in metalworking, pumping, and process lines. Feature: NEMA 12/3R enclosure protection reduces exposure to dust, moisture, and corrosion. Business Impact: Lengthens service intervals and lowers maintenance costs. Application: Indoor installations and weather-exposed areas when configured for rain protection. Feature: Class H fuse provision with fusible without neutral simplifies protection coordination and wiring simplicity. Business Impact: Improves short-circuit response and design flexibility, reducing panel complexity. Application: Large-capacity motor circuits requiring reliable fault isolation. Feature: Four-pole, four-wire design ensures clean wiring and prevents neutral misrouting. Business Impact: Enhances safety and trip predictability, supporting coordinated motor control. Application: Multi-motor feeds in automated lines and switchgear assemblies. Feature: Field-modifiable to meet NEMA 3R rainproof requirements by opening a factory drain hole. Business Impact: Extends outdoor service life and reduces retrofit costs. Application: Outdoor process areas and weather-protected installations. Feature: High HP rating of up to 400–500 hp at 480/600 V enables direct-drive solutions. Business Impact: Reduces the need for interim equipment changes, delivering cost and time savings. Application: Heavy-duty motor control in packaging, printing, and conveying systems.
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FAQs
Plan for a four-pole, four-wire layout within a NEMA 12/3R enclosure. Verify conductor sizes up to the unit's rated capacity and follow NEC guidelines for short-circuit protection and grounding. Use the Class H fuse provision to select an appropriate ampere rating and ensure proper wiring separation to maintain safe isolation during service.
It is rated for 600 A, with a maximum voltage of 600 V and a four-pole, four-wire configuration. The device uses fusible protection (Class H) without a neutral and provides HP ratings up to 400–500 hp at 480/600 V three-phase.
Yes, the DH466FDK is UL Listed. It uses a NEMA 12, NEMA 3R-compatible enclosure, with field-modifiable options to meet rainproof requirements when needed.
The unit features a four-pole, four-wire design with fusible without neutral and Class H fuse provision. This configuration supports safe isolation, neat wiring, and flexible protection coordination across high-power motor circuits.
Warranty is Eaton’s policy: one year from installation or eighteen months from shipment, whichever occurs first. The robust enclosure and high-current capability reduce downtime, simplify maintenance, and support longer service life for high-demand applications.