Eaton DH363NWKX Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH363NWKX
Quick Summary
The Eaton DH363NWKX heavy-duty fusible safety switch provides reliable isolation for electrical feeders in harsh industrial environments. Operators frequently struggle with corrosion, space constraints, and downtime when selecting protective switchgear, making it hard to keep systems safe and productive. This model addresses those challenges with a corrosion-resistant EnviroLine stainless enclosure and a robust NEMA 4X rating that withstands washdown and outdoor exposure. It carries UL Listed recognition and NEC 230.62 barrier compliance, plus a Class H fuse provision for dependable protection. The unit also supports up to 100 A at 600 V and integrates easily with three-pole, four-wire circuits, delivering strong value for maintenance teams and procurement teams alike.
Product Information
Extended Description
DH363NWKX Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, 100 A, NEMA 4X, EnviroLine stainless, Class H, Neutral, Three-pole, Four-wire, 600 V, Max Hp: 30, 40/ 60, 75 hp (1/3PH @480, 600 V), #14-#1/0 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH363NWKX
UPC
782114224250
Product Length/Depth
10.22 in
Product Height
24.95 in
Product Width
10.76 in
Product Weight
30 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.
Compliances
NEC 230.62 (C) Compliant Barrier
Certifications
UL Listed
Enclosure
NEMA 4X
Enclosure material
EnviroLine stainless
Fuse class provision
Class H
Fuse configuration
Fusible with neutral
Number Of Poles
Three-pole
Number of wires
4
Type
Heavy duty fusible safety switch
Amperage Rating
100A
HP rating - max
30, 40/ 60, 75 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 4X (Stainless)
Voltage rating
600 V
Product Category
Heavy Duty, Harsh Environment - EnviroLine
EnviroLine stainless enclosure provides corrosion resistance and long service life, reducing maintenance in washdown areas and chemical environments, while complying with NEMA 4X requirements. This translates to fewer unscheduled downtimes and lower maintenance costs on outdoor equipment and processing lines. The 100 A, 600 V rating supports demanding motor loads, with HP ratings up to 75 hp at 480/600 V, enabling precise protection for pumps, conveyors, and fans in industrial plants. Fuse provision with Class H protection and neutral support enhances short-circuit reliability, simplifying compliance with safety standards and easing retrofits in existing motor control centers. The three-pole, four-wire design ensures straightforward integration with common electrical distributions, while copper/aluminum conductor compatibility (#14-#1/0) streamlines installation and reduces procurement complexity. Dimensions (10.22 in L × 10.76 in W × 24.95 in H) and a 30 lb weight support manageable on-site handling and mounting in constrained spaces. UL Listed and NEC 230.62 barrier compliance reinforce regulatory confidence, while the 25-000 warranty provides protection against manufacturing defects for up to one year from installation or eighteen months from shipment.
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FAQs
Plan for a suitable mounting surface sized to the unit’s 10.22 in depth, 10.76 in width, and 24.95 in height, with a weight around 30 lb. Wire the switch for a three-pole, four-wire circuit using #14-#1/0 Cu/Al conductors. Ensure the enclosure is protected to NEMA 4X, maintain NEC 230.62 barrier clearances, and observe UL listing guidelines during mounting and wiring.
Assess the 100 A amperage rating and 600 V voltage rating, which accommodate motor drives up to 30, 40/60, or 75 hp for 1/3-phase operation at 480/600 V. Confirm the device is three-pole with neutral, uses Class H fuses, and supports #14-#1/0 Cu/Al conductors to ensure safe, code-compliant protection for MCCs and line-side protection.
Yes. The ENVIROLine stainless steel enclosure provides corrosion resistance, and the NEMA 4X rating is designed for washdown and outdoor exposure. UL-listed construction plus barrier compliance supports durable operation in challenging environments, making it suitable for outdoor equipment, chemical processing, and facilities with frequent cleaning or exposure to moisture.
This switch is UL Listed and meets NEC 230.62 barrier requirements, confirming safe installation in controlled and outdoor environments. It supports safe operation within standard industrial codes and regulations, and is backed by Eaton’s warranty policy (25-000) of one year from installation or eighteen months from shipment, whichever occurs first, aiding lifecycle planning and risk mitigation.
The corrosion-resistant EnviroLine enclosure minimizes maintenance in harsh environments, reducing downtime and replacement costs. Reliable 100 A, 600 V protection for motor loads lowers fault-related outages, while easy installation and universal conductor compatibility speed up commissioning. UL and NEC compliance further reduce regulatory risk, delivering a lower total cost of ownership over the switch’s life cycle.