Eaton DH322NCK Heavy Duty Fusible Safety Switch - NEMA 4X
Part Number: DH322NCK
Quick Summary
Eaton DH322NCK heavy duty fusible safety switch provides reliable isolation for 3-phase systems in demanding industrial environments. Operators often struggle with corrosion, washdown exposure, and finding a disconnect that meets strict safety standards during maintenance. UL Listed, NEC 230.62 compliant barriers, and a NEMA 4X non-metallic Krydon enclosure help you meet regulatory requirements while protecting personnel and equipment. The device’s fusible with neutral configuration and three-pole, four-wire design simplifies integration into existing controls, reducing wiring complexity and downtime. Built for rugged service, it supports up to 60 A at 240 V, delivering dependable protection for motors and process loads while maintaining easy serviceability and compliance.
Product Information
Extended Description
DH322NCK Eaton: Eaton Heavy duty single-throw fused safety switch, Corrosion resistant, 60 A, NEMA 4X, Non-metallic, KRYDON, Class H, Fusible with neutral, Three-pole, Four-wire, 240 V, Max Hp: 7.5, 15 (3PH @Std, TD), #14-#2 Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH322NCK
UPC
782114295991
Product Length/Depth
15.46 in
Product Height
19.25 in
Product Width
10.25 in
Product Weight
22 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
Non-metallic, KRYDON
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
Wire size
#14-2 AWG Cu/Al
Amperage Rating
60A
HP rating - max
7.5, 15 (3PH @Std, TD)
NEMA rating
NEMA 4X (Non-Metallic)
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
60A at 240V capability provides solid overcurrent protection for standard motor and load circuits, while a three-pole, four-wire design enables straightforward integration into common 3-phase systems. This configuration minimizes wiring errors, supports selective coordination, and reduces downtime during fuse replacement, translating to measurable uptime gains in production lines. The NEMA 4X Krydon enclosure delivers superior corrosion resistance and washdown durability, so you can install this switch in outdoor locations, chemical plants, or aggressive manufacturing environments without compromising device integrity or operator safety. The fusible with neutral arrangement simplifies control circuitry wiring by sharing a neutral conductor where needed, helping to streamline panel layouts and compliance with control-system standards. Class H fuse provision offers reliable protection with standard replacement practices, enabling quick field maintenance without complex reconfigurations. Three-pole, four-wire wiring compatibility with common #14-2 Cu/Al conductors supports rapid installation using existing feeder schemes, reducing material costs and project timelines. UL Listed certification and NEC 230.62 barrier compliance simplify regulatory acceptance across facilities, while a compact footprint and documented dimensions ease panel mounting and retrofits. The overall design emphasizes serviceability, spare-part availability, and long-term lifecycle cost reduction, delivering predictable maintenance intervals and lower total cost of ownership in high-demand industrial settings.
Get a Quick Quote for a Eaton DH322NCK
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton DH322NCK?
Enquire Now
FAQs
The DH322NCK is a three-pole, four-wire disconnect rated for 60A at 240V. Plan for a neutral conductor within the control circuit, use #14-2 copper or aluminum wiring, and mount within a suitable enclosure. Ensure the NEC 230.62 barrier is maintained to separate energized parts and reference the device’s 15.46 inch depth, 19.25 inch height, and 10.25 inch width during panel layout for safe serviceability.
Class H fuses provide high performance overcurrent protection with predictable clearing times, which helps protect motors and feeders from overloads. The fusible-with-neutral design simplifies wiring by allowing a common neutral path where required, reducing wiring complexity and time to commission. Field replacement is straightforward, with standard spare fuses and quick-access fuse holders improving maintenance throughput.
Yes. The DH322NCK uses a NEMA 4X enclosure with Krydon non-metallic material, delivering corrosion resistance and washdown durability. This makes it well-suited for outdoor installations, chemical plants, food processing, and other environments where moisture or chemicals are present, helping to maintain long-term reliability and safe operation.
The DH322NCK is UL Listed and includes NEC 230.62 barrier compliance, supporting regulatory acceptance in most industrial facilities. These certifications help ensure safe installation practices, proper isolation, and consistent electrical protection across systems, contributing to safer maintenance workflows and audit-ready documentation.
Choosing the DH322NCK reduces downtime through rapid fuse replacement and reliable overcurrent protection for three-phase loads. Its corrosion-resistant enclosure minimizes maintenance in harsh environments, while UL and NEC compliance streamline procurement and commissioning. The result is lower total cost of ownership, longer service intervals, and improved plant safety and throughput.