Eaton DH364NRK Heavy Duty Safety Switch - NEMA 3R
Part Number: DH364NRK
Quick Summary
Eaton DH364NRK Heavy Duty safety switch provides reliable protection for three-phase electrical distribution in industrial environments. For engineers and maintenance teams, selecting a safe, easily isolable switch helps minimize unplanned downtime and improve motor control reliability during commissioning and servicing. This unit is UL Listed and ships with a rugged NEMA 3R enclosure and Class H fuse provisions, supporting safe outdoor operation and high-demand indoor installations. By combining a fusible with neutral configuration and a three-pole, four-wire design, it delivers flexible protection for 200 A circuits while accommodating up to 50/125/150 HP at 480–600 V. The result is a robust, compliant solution that reduces risk and supports fast, code-compliant panel builds.
Product Information
Extended Description
DH364NRK Eaton: Eaton Enhanced visible blade single-throw safety switch, 200 A, NEMA 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), #6-250 kcmil Cu/Al
Product Name
Eaton heavy duty fusible safety switch
Catalog Number
DH364NRK
UPC
782113206837
Product Length/Depth
30 in
Product Height
9.5 in
Product Width
18 in
Product Weight
52 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
Enclosure
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 3R
Voltage rating
600 V
Product Category
Heavy Duty, Fusible with neutral
200 A amperage rating with a three-pole, four-wire design provides robust overcurrent protection for typical plant feeders. This translates to faster, safer isolation during maintenance and fewer components in a control panel. It's well-suited for machine control panels and distribution panels in manufacturing environments where a 200 A rating is common. The fuse configuration offers a neutral path with Class H protection, enabling coordinated motor protection for loads up to 50/125/150 HP at 480–600 V, reducing nuisance trips and increasing line reliability. The unit’s NEMA 3R enclosure and painted galvanized steel construction deliver durability in both outdoor and harsh indoor settings, facilitating compliant outdoor installations and long service life. UL Listed certification reinforces safety compliance, while Cu/Al wiring capability up to #6-250 kcmil supports flexible, ready-to-wire panel builds. With dimensions of 30 in length, 18 in width, and 9.5 in height and a weight around 52 lb, installation fits compact switchgear footprints and retrofit projects with ease.
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FAQs
The DH364NRK is a three-pole, four-wire switch with fusible with neutral configuration, designed to accommodate Cu or Al conductors from #6 to #250 kcmil. It is intended for 600 V systems and mounts in a NEMA 3R enclosure, with dimensions of 30 in L, 18 in W, and 9.5 in H, making it suitable for panel builds and retrofits in industrial environments.
Key ratings include 200 A amperage, 600 V maximum voltage, and HP ratings of 50, 50/125, and 150 hp at 480–600 V (1/3 PH). The device uses Class H fuses and is fusible with neutral for coordinated protection, with UL Listed certification and a NEMA 3R enclosure suitable for outdoor and harsh indoor environments.
Yes. The unit comes in a NEMA 3R enclosure with painted galvanized steel housing, designed for outdoor use and harsh indoor environments. The UL Listed safety switch provides reliable protection in weather-exposed locations while maintaining safe isolation when servicing equipment.
The DH364NRK carries UL Listed certification and uses a NEMA 3R enclosure. UL listing confirms conformance to safety and performance standards, while NEMA 3R denotes suitability for outdoor and exposed applications, helping manufacturers meet regulatory and reliability requirements in industrial facilities.
The rugged, heavy-duty design reduces downtime through reliable protection and easier maintenance procedures. With a one-year Eaton warranty (or up to eighteen months from shipment, per policy), straightforward wiring (Cu/Al up to #6-250 kcmil), and a compact footprint, the DH364NRK supports faster installation, fewer spare parts, and lower total cost of ownership in panel retrofits and new builds.