Eaton DH422FDKW Heavy Duty Safety Switch - UL Listed
Part Number: DH422FDKW
Quick Summary
Eaton DH422FDKW is a heavy-duty fusible safety switch for industrial power distribution. Maintenance teams often face downtime from hard-to-view blades and uncertain disconnections during servicing. UL Listed certification, along with a rugged NEMA 12/3R enclosure, helps ensure safe operation in dusty or wet industrial environments. Designed for reliability and fast maintenance, it integrates cartridge fuses and four-pole wiring to support scalable, code-compliant protection across commercial facilities. For projects prioritizing uptime, this switch offers easy installation and compatibility with standard control circuits. In short, it delivers robust electrical protection with clear visibility and long-term cost savings.
Product Information
Extended Description
DH422FDKW Eaton: Eaton Enhanced visible blade single-throw safety switch, Enhanced visible blades, 4 blade, 60 A, NEMA 12/3R, Cartridge, Four-pole, Four-wire, 240 V, Max Hp: 7.5, 7.5/ 20, 15 /10 hp (1,3PH @Std/TD/250 Vdc), 600 V, #14-#2 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH422FDKW
UPC
786680182204
Product Length/Depth
26 in
Product Height
8 in
Product Width
13.5 in
Product Weight
32 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
60A
HP rating - max
7.5, 7.5/ 20, 15 /10 hp (1,3PH @Std/TD/250 Vdc)
NEMA rating
NEMA 12/3R
Voltage - max
600 V
Voltage rating
240V
Application
Heavy commercial and industrial
Series
K
Feature: Enhanced visible blades and four-pole design improve safety and disconnection reliability. Business Impact: Clear blade visibility reduces misconfiguration and enhances operator confidence during maintenance, lowering risk of accidental energization. Application: Ideal for four-wire, 240V/600V industrial circuits in process lines and material handling. Feature: 60A amperage rating with 240V operating voltage and 600V max. Business Impact: Supports higher-capacity motor loads while maintaining fast, predictable disconnections, improving protection against overcurrent events. Application: Suitable for mid-size industrial motors and equipment across manufacturing lines. Feature: Cartridge fuse configuration and fusible without neutral. Business Impact: Enables straightforward fuse replacement and reduced spare-part inventory, cutting maintenance time and costs. Application: Field-serviceable protection in control panels and electrical rooms. Feature: NEMA 12, NEMA 3R enclosure with painted galvanized steel. Business Impact: Provides dust and moisture resistance, reducing corrosion risk and extending service life in demanding environments. Application: Indoor wash-down areas and outdoor-rated installations in harsh facilities. Feature: UL Listed certification and four-pole, four-wire construction. Business Impact: Demonstrates compliance with safety standards, improving regulatory readiness and supplier due-diligence. Application: Compliance-driven facilities in heavy industry requiring traceable protection. Feature: Compact overall footprint with a 26 in depth, 13.5 in width, and 8 in height; 32 lb weight. Business Impact: Facilitates installation in tight control cabinets and on equipment skids, reducing installation time. Application: Retrofit projects and new builds where space is at a premium.
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FAQs
DH422FDKW is designed for four-pole, four-wire circuits, delivering reliable disconnection at up to 60A. When installing, verify alignment with control circuits, ensure proper wiring of the four poles, and maintain clear access to the enhanced visible blades for safe operation during energization and maintenance. Follow standard panel-build practices for enclosure mounting.
Key specs include a 60A amperage rating, 240V nominal voltage with a 600V maximum, four-pole, four-wire configuration, and cartridge fuse provision. The unit supports HP ratings up to 7.5/20/15/10 hp depending on phase and voltage, and features a NEMA 12/3R enclosure for indoor and outdoor-friendly protection.
Yes. The safety switch uses a NEMA 12/3R enclosure and painted galvanized steel, providing protection against dust and moisture in demanding industrial settings. This makes it well-suited for heavy commercial and industrial applications where environmental exposure is a concern and maintenance downtime must be minimized.
The DH422FDKW carries UL Listed certification, indicating compliance with widely recognized safety standards for industrial electrical equipment. The combination of UL Listing and rugged enclosure rating supports regulatory readiness and reliable performance in harsh environments.
Warranty is governed by Eaton’s policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This coverage supports post-installation service, parts availability, and technical support to maintain uptime and protection for critical equipment.