Eaton DH223NWK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH223NWK
Quick Summary
The Eaton DH223NWK heavy duty fusible safety switch is designed to reliably control and protect demanding industrial circuits. Many panel builders face corrosion, space constraints, and challenging fuse replacements in harsh environments; this unit addresses those pain points with a robust stainless enclosure and easy integration. It carries UL Listed certification and a NEMA 4X (Stainless) rating, providing proven safety and durability for outdoor, washdown, and corrosive settings. With a two-pole, three-wire configuration and a neutral fuse provision, it delivers protection with installation ease, helping facilities reduce downtime and maintenance costs while improving overall motor-control reliability. In short, it combines protective performance with a compact footprint for modern manufacturing and processing plants.
Product Information
Extended Description
DH223NWK Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, enhanced visible blade, 100 A, NEMA 4X, Neutral, Two-pole, Three-wire, 240 V, Max Hp: 7.5, 15 hp/15, 30 hp/20 hp (1,3PH @ Std fuse/time delay/250 Vdc), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH223NWK
UPC
782113206301
Product Length/Depth
25.5 in
Product Height
9 in
Product Width
13.25 in
Product Weight
28 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
3-Phase hp ratings shown are grounded B phase ratings; UL listed
Enclosure
NEMA 4X
Enclosure material
304 stainless steel
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Two-pole
Number of wires
3
Type
Heavy duty fusible safety switch
Amperage Rating
100A
HP rating - max
7.5, 15 hp/15, 30 hp/20 hp (1,3PH @ Std fuse/time delay/250 Vdc)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
Feature → Business Impact → Application: The 100A amperage rating with 7.5 to 30 hp support across 1- and 3-phase configurations at 240 V enables precise motor protection, reducing nuisance tripping and unplanned downtime in conveyors, pumps, and fans. This translates to improved line efficiency and lower maintenance costs in manufacturing lines. Application: motor drives and process equipment in mid-size facilities needing reliable disconnect devices. Feature → Business Impact → Application: A NEMA 4X enclosure in 304 stainless steel delivers corrosion resistance and washdown suitability, cutting maintenance intervals and extending service life in food processing, chemical plants, and outdoor installations. Application: harsh environments with frequent exposure to moisture or chemicals. Feature → Business Impact → Application: Fusible with neutral and Class H fuse provision supports selective protection and straightforward fuse replacement, enabling safer maintenance windows and easier stock management for service teams. Application: standard off-line safety switching for 3-wire control circuits. Feature → Business Impact → Application: Two-pole, three-wire design simplifies wiring and retrofits into existing panels, reducing installation time and compatibility risk in new builds. Application: retrofits and new builds in OEM and contractor projects. Feature → Business Impact → Application: UL Listed certification provides assurance of safety and compliance for industrial facilities, aiding procurement and auditing processes. Application: regulatory-driven purchasing and plant safety programs. Feature → Business Impact → Application: Compact footprint with clear labeling and robust construction minimizes footprint without compromising protection, enabling more efficient panel layouts in crowded control rooms.
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FAQs
Installation involves mounting the enclosure within the panel cutout and wiring the three wires to the switch terminals, with a neutral fused circuit as specified. Ensure the 100A rating matches the motor starter and that the Class H fuse is installed correctly. Follow UL guidelines for wiring and confirm the NEMA 4X seal against ingress. Proper torque on connections minimizes heat buildup and improves longevity.
The DH223NWK supports a maximum HP range of 7.5 to 30 hp depending on the configuration and phase. It accommodates both single-phase and three-phase systems at 240 V with standard fuse and time-delay options, making it suitable for a variety of motors and equipment where reliable disconnect protection is required.
Yes. The enclosure is rated NEMA 4X and constructed from 304 stainless steel, offering excellent corrosion resistance and washdown durability. This makes it appropriate for outdoor installations, chemical processing areas, and food/ beverage applications where moisture and contaminants are present.
The DH223NWK is UL Listed, and its NEMA 4X stainless enclosure supports rugged protection against ingress in challenging environments. These certifications and ratings help verify component safety, simplify compliance reporting, and facilitate procurement in regulated industrial settings.
The corrosion-resistant 304 stainless enclosure and the neutral-fuse design reduce corrosion-related downtime and simplify fuse replacement, lowering maintenance frequency and labor costs. The UL listing and robust construction also contribute to longer service life, protecting motor loads and improving overall plant uptime and return on investment.