Eaton DH466FDKW Heavy Duty Fusible Switch - NEMA 12/3R
Part Number: DH466FDKW
Quick Summary
Eaton DH466FDKW heavy duty fusible safety switch protects critical industrial power circuits in harsh environments. Engineers often confront downtime and arc-flash risk, and this unit’s enhanced visible blades help operators quickly verify status during isolation. With UL Listed certification and a rugged NEMA 12/3R enclosure, it delivers reliable protection in demanding settings. The combination of cartridge fuses and four-pole, four-wire configuration simplifies wiring, maintenance, and serviceability, while staying compatible with common three-phase systems up to 600 V. For industrial facilities seeking compliant, high-availability protection with straightforward installation, this switch offers a compelling balance of safety, performance, and total cost of ownership.
Product Information
Extended Description
DH466FDKW Eaton: Eaton Heavy duty single-throw fused safety switch, Enhanced visible blades, 4 blade, 600 A, NEMA 12/3R, Cartridge, 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
DH466FDKW
UPC
786680181139
Product Length/Depth
64 in
Product Height
13 in
Product Width
25.5 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
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
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
Application
Heavy commercial and industrial
Series
K
Eaton Specification Sheet - DH466FDKW
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Four-pole, four-wire configuration with cartridge fuse. Business Impact: Enables clean, single-point isolation of three-phase circuits while allowing rapid fuse replacement, reducing downtime during maintenance. Application: Power distribution panels in machine shops and manufacturing lines. Feature: NEMA 12/3R enclosure with a painted galvanized steel body. Business Impact: Provides dust, water, and ingress protection for indoor and limited outdoor environments, improving uptime in harsh plant conditions. Application: Industrial facilities and challenging production floors where equipment longevity matters. Feature: Enhanced visible blades for quick status indication. Business Impact: Accelerates fault-finding and safe re-energization, lowering diagnostic time and risk to personnel. Application: Control rooms and field-service scenarios requiring fast visual confirmation. Feature: High amperage and voltage ratings (600 A, 600 V) with max HP compatibility (400/500 hp at 480/600 V @3PH). Business Impact: Confirms suitability for large motor loads and drives, reducing the need for multiple switchgear revisions. Application: Large conveyors, pumps, and processing equipment. Feature: UL Listed certification and robust construction. Business Impact: Supports regulatory compliance and safe operation in regulated facilities, simplifying procurement and safety audits. Application: Automotive, packaging, and general heavy industrial automation environments. Feature: Four-pole, four-wire design tailored for three-phase systems with cartridge fuse protection. Business Impact: Streamlines wiring schemes and standardizes maintenance practices across facilities. Application: Power distribution to heavy machinery and automated lines.
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FAQs
DH466FDKW supports a four-pole, four-wire configuration with cartridge fuse provision and a NEMA 12/3R enclosure. It is designed for three-phase systems up to 600 V and fits standard control panels, simplifying wiring and field installation while enabling straightforward maintenance with replaceable fuses.
The switch is rated for 600 A and 600 V, with maximum horsepower ratings of 400–500 hp at 480–600 V on three-phase systems. It uses cartridge fuses and provides four-pole, four-wire connectivity for robust motor protection and safe disconnection in demanding industrial applications.
Yes. The unit is designed for heavy commercial and industrial use, featuring a rugged NEMA 12/3R enclosure, UL Listed certification, and high-current capability. It supports reliable power isolation for large motors, conveyors, and processing equipment while meeting industrial safety and performance standards.
The DH466FDKW carries UL Listed certification, reflecting compliance with recognized safety standards for industrial electrical equipment. Its NEMA 12/3R enclosure rating further indicates suitability for protective service in challenging environments, enhancing reliability and compliance across critical infrastructure.
Eaton provides a warranty under policy 25-000: one year from the installation date or eighteen months from shipment, whichever occurs first. This covers defects in material and workmanship and supports planned maintenance cycles for mission-critical installations.