Eaton DH364NDK Heavy duty fusible safety switch - UL Listed
Part Number: DH364NDK
Quick Summary
The Eaton DH364NDK heavy duty fusible safety switch isolates power safely in industrial equipment and control panels. Facing downtime and maintenance delays, operators need reliable disconnects that minimize risk during servicing. UL Listed, NEC 230.62 barrier-compliant, and NEMA 12/3R enclosure ratings ensure protection in harsh environments. This model delivers robust 200 A protection with field-modifiable rainproof capability, supporting easy installation and long-term cost savings in industrial power distribution and motor control applications.
Product Information
Extended Description
DH364NDK Eaton: Eaton Heavy duty single-throw fused safety switch, 200 A, NEMA 12/3R, Painted galvanized steel, Class H, Fusible with neutral, Three-pole, Four-wire, 600 V, Max Hp: 50, 50/ 125, 150 hp (1/3PH @480, 600 V), #6-300 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH364NDK
UPC
782113206912
Product Length/Depth
11.63 in
Product Height
35.38 in
Product Width
15.5 in
Product Weight
61 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
Amperage Rating
200A
HP rating - max
50, 50/ 125, 150 hp (1/3PH @480, 600 V)
NEMA rating
NEMA 12/3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
Feature → Business Impact → Application: The 200 A amperage rating at 600 V provides solid protection for medium to large motor loads, reducing nuisance trips and equipment wear while enabling safe startup sequences in manufacturing lines. In practice, you can protect drives and feeders up to 50/125/150 hp at 480–600 V, improving uptime and system reliability across applications such as conveyors and presses. Feature → Business Impact → Application: NEMA 12, NEMA 3R enclosures in painted galvanized steel offer durable protection against dust, moisture, and corrosion, lowering maintenance costs in harsh plant environments and enabling outdoor or washdown areas to stay compliant. Feature → Business Impact → Application: Fusible with neutral and Class H fuse configuration ensure coordinated protection for three-phase systems with a neutral, reducing fault propagation and enabling safer isolation during maintenance. Feature → Business Impact → Application: Three-pole, four-wire wiring supports clean three-phase distribution with neutral to equipment requiring grounded reference, simplifying panel wiring and startup sequences. Feature → Business Impact → Application: Field modification for NEMA 3R rainproof operation via drain hole opening provides rainproof capability without a full reconfiguration, speeding installation in outdoor enclosures and weather-exposed locations. Feature → Business Impact → Application: UL Listed and NEC barrier compliance deliver regulatory assurance for electrical design reviews and safety audits, helping meet project timelines and compliance budgets while supporting long-term asset protection.
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FAQs
The DH364NDK is a three-pole, four-wire device designed for 200 A systems at 600 V. It supports standard field wiring with neutral, suitable for motors and loads requiring a grounded reference. Its NEMA 12/3R enclosure ensures protection in dusty, humid, or outdoor environments, and the unit is compatible with #6-300 kcmil Cu/Al conductors, facilitating flexible installation in control panels and disconnect enclosures.
Key ratings include 200 A amperage, 600 V voltage, and maximum HP ratings of 50, 50/125, and 150 hp (1/3PH @ 480, 600 V). It uses a Class H fuse with neutral (fusible with neutral) for coordinated protection, and it is UL Listed with NEC 230.62 barrier compliance, aligning with common industrial protection standards.
Yes, the enclosure is rated NEMA 12 and NEMA 3R, with a catalog note that it can be field modified to meet NEMA 3R rainproof requirements when a factory drain hole is opened. This allows outdoor or washdown environments to benefit from the same robust protection as indoor installations, reducing project timelines.
The DH364NDK is UL Listed and NEC 230.62 barrier compliant, providing regulatory assurance for electrical design reviews. These certifications support safety audits, project approvals, and compliance documentation for industrial facilities and OEMs.
With UL Listed safety certification, NEC-compliant barriers, and a robust 200 A rating, maintenance intervals can be extended due to reliable isolation, reducing downtime. The field-modifiable rainproof option minimizes retrofit costs for outdoor installations, and durable galvanized steel construction lowers long-term enclosure upkeep, delivering total cost savings over asset lifecycles.