Eaton DH322NDK Heavy Duty Fusible Safety Switch - UL Listed
Part Number: DH322NDK
Quick Summary
The Eaton DH322NDK heavy duty fusible safety switch provides protection for electrical feeders and motor circuits in harsh industrial environments. Many plants struggle with downtime from unscheduled trips and challenges when modifying safety controls in the field. It carries UL Listed approval, NEC 230.62(C) barrier compliance, and a rugged NEMA 12/3R enclosure for safe operation. Designed for heavy duty industrial safety, it integrates a three-pole fusible switch with neutral for reliable protection and easier panel integration.
Product Information
Extended Description
DH322NDK Eaton: Eaton Heavy duty single-throw fused safety switch, 60 A, NEMA 12/3R, Painted galvanized steel, Class H, Fusible with neutral, Three-pole, Four-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
DH322NDK
UPC
782113205922
Product Length/Depth
20 in
Product Height
8.5 in
Product Width
9.5 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
Catalog Notes
Can be field modified to meetNEMA 3R rainproof requirements when a factory provided drain hole is opened
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
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
3, 7.5/ 10, 15/ 10 hp (1,3PH @Std/TD/250 Vdc)
NEMA rating
NEMA 12/3R
Voltage rating
240V
Product Category
Heavy Duty, Fusible with neutral
Feature: Three-pole, fusible with neutral and Class H fuse option. Business Impact: Provides robust overcurrent protection with a neutral path, reducing nuisance trips and enabling safer startup. Application: Ideal for motor feeders and control circuits in 60A rated electrical distribution. Feature: NEMA 12, NEMA 3R enclosure with painted galvanized steel construction. Business Impact: Durable, corrosion-resistant housing suitable for indoor and outdoor environments with field modification options for rainproof protection. Application: Suitable for harsh industrial plants and washdown areas. Feature: Four-wire capability with #14-2 AWG Cu/Al wiring. Business Impact: Simplifies wiring schemes and enables straightforward integration into existing control panels, saving installation time. Application: Standard motor control circuits and feeders in manufacturing lines. Feature: 60A, 240V, HP rating up to 15/10 hp (1,3PH Std/TD/250 Vdc) with NEMA 12/3R compatibility. Business Impact: Clear performance benchmarks for motor protection, enabling precise selection and optimized downtime. Application: Industrial machinery and process equipment requiring reliable shutoff protection. Feature: UL Listed, NEC barrier compliance, and field-modifiable for NEMA 3R rainproof upgrades. Business Impact: Meets regulatory and safety requirements while offering flexible site adaptations without replacing equipment. Application: Compliance-focused installations in regulated facilities and evolving plant layouts. Feature: 20 in length, 9.5 in width, 8.5 in height, 22 lb weight with a 1-year standard warranty (or 18 months from shipment). Business Impact: Predictable footprint and total cost of ownership, with straightforward warranty support for uptime. Application: Replacement projects or new installations in controlled environments.
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FAQs
Yes. The DH322NDK is a three-pole, four-wire unit rated for 60A at 240V and uses #14-2 AWG Cu/Al conductors, making it compatible with standard control panels and motor control centers. Its NEMA 12/3R enclosure and neutral-fused design simplify integration into existing layouts, while field-modifiable options let you upgrade to rainproof operation without replacing the switch.
Key specs include a 60A amperage rating and 240V voltage rating, with a max HP rating of 3, 7.5/10, 15/10 hp across 1-3 phase configurations. The device is fusible with neutral and uses Class H fuse provision, enabling precise overload protection and controlled disconnection for motors and feeders, reducing risk of equipment damage during faults.
This safety switch is well-suited for manufacturing lines, process equipment, and heavy-duty machinery where reliable motor protection and ease of maintenance are essential. Its NEMA 12/3R enclosure supports indoor and outdoor environments with field modification to rainproof operation, making it adaptable to equipment rooms, wash-down areas, and general industrial automation applications.
The DH322NDK carries UL Listed certification and NEC barrier compliance, ensuring alignment with safety and code requirements. It also emphasizes rugged NEMA 12/3R enclosure performance and a field-modifiable design for optional rainproof operation, helping facilities maintain compliance while adapting to site conditions.
Eaton provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. Maintenance is straightforward, with readily replaceable fusible elements, standard spare parts, and predictable field service needs. This translates to lower downtime costs and a favorable total cost of ownership for mid- to large-scale industrial installations.