Eaton DH322FWK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH322FWK
Quick Summary
Eaton heavy duty fusible safety switch protects industrial power distribution by interrupting fault currents in panels and enclosures. Many engineers struggle with reliability and maintenance in harsh environments where corrosion and exposure threaten safety. Key certifications include UL Listed certification and a NEMA 4X stainless enclosure for washdown and corrosive environments. This solution integrates with electrical protection and circuit control processes to reduce downtime, improve safety, and streamline panel builds. Its 60A rating and 240V supply suit mid to large automation cells, while three-pole operation ensures reliable isolation. With 304 stainless steel construction and a 20x9.5x8.5 in footprint, it stands up to demanding environments.
Product Information
Extended Description
DH322FWK Eaton: Eaton Enhanced visible blade single-throw safety switch, 60 A, NEMA 4X, 304 stainless steel, Class H, Three-pole, Three-wire, 240 V, Max Hp: 3, 7.5/ 10, 15/ 10 hp (1,3PH @Std/TD/250 Vdc), #14-#2 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH322FWK
UPC
782113205915
Product Length/Depth
20 in
Product Height
8.5 in
Product Width
9.5 in
Product Weight
20 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
Suitable for service entrance use with a neutral or ground lug kit installed
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
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
Wire size
#14-2 AWG Cu/Al
Amperage Rating
60A
HP rating - max
3, 7.5/ 10, 15/ 10 hp (1,3PH @Std/TD/250 Vdc)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
240V
Product Category
Heavy Duty, Fusible without neutral
Feature → Business Impact → Application: The DH322FWK uses a 304 stainless steel enclosure with a NEMA 4X rating, delivering outstanding corrosion resistance in washdown and chemical environments; this reduces maintenance cycles and extends service life in food processing, water treatment, and pharma facilities. Result: lower total cost of ownership and fewer unscheduled shutdowns in harsh environments. Application: suitable for panel-mounted service entrances and outdoor installations where cleanliness and protection matter. Feature → Business Impact → Application: Fusible protection is Class H and configured as fusible without neutral, with a three-pole, three-wire design. Impact: precise short-circuit interruption and safe isolation for three-phase equipment, improving safety compliance and motor protection in industrial plants. Application: motor control centers and equipment fed from 240 V systems. Feature → Business Impact → Application: The DH322FWK is rated at 60A with HP ratings up to 15/10 hp for three-phase (Std/TD) and 1.3PH at 250 Vdc, enabling effective protection for mid-range automation loads. Impact: optimized downtime and energy management, enabling cleaner start-ups and reduced wear on drive trains. Application: small to mid-size conveyors and process lines. Feature → Business Impact → Application: Wiring supports #14-2 AWG Cu/Al with three-pole, three-wire configuration and an enclosure that accommodates service entrance use with neutral or ground lug kit (catalog notes). Impact: simplified field installation, reuse of existing lug kits, and faster panel integration. Application: retrofit projects and new builds in light to medium industrial environments. Feature → Business Impact → Application: UL Listed certification and Eaton warranty policy provide regulatory confidence and post-sale support. Impact: minimizes risk during audits and ensures reliable coverage during operation. Application: any regulated facility seeking strong supplier support and documented quality. Feature → Business Impact → Application: Overall footprint measures 20 in length, 9.5 in width, and 8.5 in height with a 20 lb weight, enabling compact installation in tight electrical rooms. Impact: easier cabinet planning, better space utilization, and flexible mounting options. Application: panel enclosures with limited interior space.
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FAQs
The DH322FWK supports three-pole, three-wire wiring with #14-2 AWG Cu/Al conductors and a compact 20x9.5x8.5 inch footprint. It is designed for service entrances and control panel boards, and can accommodate a neutral or ground lug kit per catalog notes, simplifying installation in existing cabinets.
With a 60A rating and 240V supply, the switch can safely isolate and protect mid-range three-phase motors and associated loads. The HP ratings of up to 15/10 hp (depending on configuration) help tailor protection for conveyors, mixers, and small automation cells while maintaining reliable shutdown performance during faults.
Yes. The DH322FWK uses a 304 stainless steel enclosure with a NEMA 4X rating, providing robust protection against water, dust, and corrosion. This makes it well-suited for washdown zones in food, beverage, and chemical facilities where hygiene and containment are critical.
The unit is UL Listed, ensuring compliance with key safety standards. It also comes with Eaton’s warranty policy (25-000), offering one year from installation or eighteen months from shipment, whichever occurs first. This combination provides regulatory confidence and post-sale support for maintenance planning.
Plan space for a three-pole, three-wire fusible switch with a 60A rating, confirming wire size compatibility (#14-2 AWG Cu/Al) and ensuring the neutral/ground lug kit option is available. Verify enclosure mounting in a clean, dry location, and follow UL guidelines for service entrance use to maximize reliability and safety.