Eaton DH366URK K Series Non-Fu...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$5,927.64
Eaton DH366URK K Series Non-Fusible Safety Switch, 600A NEMA 3R

Eaton DH366URK K Series Non-Fusible Safety Switch, 600A NEMA 3R

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Model: DH366URK

In Stock (leaves warehouse same day if ordered before 3pm ET)

$5,927.64
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Eaton DH366URK K Series Non-Fusible Safety Switch, 600A NEMA 3R

The Eaton DH366URK is a K Series heavy-duty, non-fusible safety switch engineered for demanding industrial and commercial power distribution applications where dependable manual disconnect capability is required. Rated for 600A with a single-throw, three-pole, three-wire configuration, this switch is housed in a painted galvanized steel enclosure rated NEMA 3R for outdoor and wet-location service. Horsepower ratings of 200 HP at 240 Vac 3-phase (TD) and 400 HP at 480 Vac (TD) make it well suited for large motor disconnect duty and heavy-duty feeder switching in facilities that demand robust, long-lasting equipment.

Key Features

  • Amperage Rating: 600A heavy-duty switching capacity supports large industrial and commercial loads.
  • Durable Construction: Painted galvanized steel enclosure resists corrosion and withstands harsh indoor and outdoor operating environments.
  • Non-Fusible, Single-Throw Design: Straightforward manual on/off disconnect switching without fuse holders, ideal where overcurrent protection is handled elsewhere in the system.
  • Three-Pole, Three-Wire Configuration: Supports balanced three-phase power distribution circuits.
  • Horsepower Ratings: 200 HP at 240 Vac 3-phase (TD) and 400 HP at 480 Vac (TD) accommodate large motor and equipment disconnect duty.
  • K Series Heavy-Duty Platform: Built on Eaton's K Series safety switch design for dependable, long-service-life switching performance.
  • NEMA 3R Enclosure Rating: Provides protection suitable for outdoor and wet-location installations.

Certifications & Compliance

  • NEMA 3R Rated Enclosure
  • Suitable for Outdoor and Wet-Location Installations

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Industrial Motor Disconnect Switching
  • Commercial and Industrial Power Distribution
  • Outdoor and Wet-Location Electrical Installations
  • Panelboard and Switchgear Supplementary Disconnects
  • Heavy-Duty Three-Phase Feeder and Equipment Switching
  • Renovation and New Construction Electrical Projects

Why Eaton?

Eaton's K Series safety switches combine a painted galvanized steel enclosure with a heavy-duty, non-fusible design to deliver reliable, code-compliant disconnect switching for demanding three-phase electrical systems. The DH366URK's 600A rating, NEMA 3R enclosure, and 200 HP/400 HP horsepower ratings at 240 Vac and 480 Vac respectively make it a dependable choice for professional electrical installations that require rugged, long-lasting switching performance in both indoor and outdoor environments.

Manufacturer Resources

Product Specs

list_batch:
EAT-20260922
Product Type:
Safety Switch
Product Finish:
Painted
Amperage Rating:
600A
Voltage Rating:
600V
Configuration:
3-Pole
Standards:
NEMA 3R
Series:
K Series
Department:
Electrical
Product Subgroup:
Safety Switches & Disconnects
Product Material:
Galvanized Steel
Product Group:
Power Distribution
Product Width:
24.08 in
Product Height:
51.82 in
Certifications:
UL Listed
Product Weight:
127 lb
Product Length:
8.95 in
Number Of Poles:
Three-pole

Eaton DH366URK – Frequently Asked Questions

1) Can the Eaton DH366URK safety switch be mounted outdoors?
Yes. The DH366URK is built in a painted galvanized steel enclosure carrying a NEMA 3R rating, which covers outdoor and wet-location mounting. If you need a washdown or corrosive-area enclosure instead, a stainless NEMA 4X unit like the Square D VisiPacT VH324NDSGL is the different animal, and an indoor-only NEMA 1 unit such as the Square D VisiPacT unfused switch is what you'd use inside a dry electrical room.
2) Does the Eaton DH366URK include fuses or fuse clips?
No. It is a non-fusible, single-throw disconnect, so there are no fuse holders inside. Use it where overcurrent protection sits elsewhere in the system, such as upstream breakers or a panelboard. If the disconnect itself has to carry the fuses, you want a fusible heavy-duty switch instead, like the ABB TC-72367 Spec-Setter.
3) Is the Eaton DH366URK rated to disconnect a 400 HP motor at 480V?
Yes. The DH366URK carries horsepower ratings of 400 HP at 480 Vac and 200 HP at 240 Vac three-phase, both time-delay fuse basis, which covers large motor disconnect duty. It is a 600A, 600V switch, so verify your motor's full-load amps stay inside 600A.
4) Will the Eaton DH366URK work on a three-phase four-wire system with a neutral?
As supplied it is a 3-pole, 3-wire switch, so it switches the three phase conductors only and has no neutral provision out of the box. For a 4-wire feeder you need a solid neutral assembly or a switch catalogued with the neutral included. The three poles handle balanced three-phase distribution as shipped.
5) Is the ABB THN3365A a drop-in replacement for the Eaton DH366URK?
No. Both are heavy-duty 3-pole 600V safety switches, but the ABB THN3365A is rated 400A while the Eaton DH366URK is rated 600A. Sizing down to 400A on a feeder or motor circuit built around a 600A disconnect is not a like-for-like swap. Match the amperage rating to the circuit before substituting.
6) What is the closest unfused heavy-duty disconnect to the Eaton DH366URK if the enclosure is going indoors?
The Square D VisiPacT heavy duty unfused safety switch, VHU361N, is the closest match in switching type - it is also an unfused heavy duty disconnect, but it carries a NEMA 1 enclosure for indoor dry locations. The Eaton DH366URK is rated NEMA 3R in painted galvanized steel, which is what qualifies it for outdoor and wet-location mounting. If the disconnect sits inside a dry mechanical room, the NEMA 1 unfused switch covers the same function; if it is on an exterior wall or rooftop, stay with the NEMA 3R Eaton.
7) I need overcurrent protection in the disconnect itself - what should I order instead of the Eaton DH366URK?
The DH366URK is a non-fusible switch, so it provides manual disconnect only and relies on overcurrent protection elsewhere in the system. If you need fuses in the same enclosure, the ABB TC-72367 Spec-Setter is a heavy-duty fusible safety switch, 3-pole, 600V AC, in a NEMA 1 enclosure, and the Square D VisiPacT VH324NDSGL is a heavy duty fused switch in a NEMA 4X stainless steel enclosure. Note the enclosure difference: NEMA 1 for indoor dry locations, NEMA 4X stainless for washdown and corrosive outdoor environments.
8) Can I use a general duty switch instead of the Eaton DH366URK on an industrial motor disconnect?
The ABB TG-Series Spec-Setter is a general duty fusible safety switch, a different class from the heavy-duty K Series platform the Eaton DH366URK is built on. General duty switches are intended for lighter residential and light commercial duty, while the DH366URK carries a 600A heavy-duty rating with 200 HP at 240 Vac 3-phase and 400 HP at 480 Vac for large motor disconnect duty. For a large industrial motor, the heavy-duty switch is the one that matches the horsepower rating on the drawing.
9) My disconnect is in a washdown or coastal location - is the Eaton DH366URK NEMA 3R enough, or do I need stainless?
The Eaton DH366URK uses a painted galvanized steel enclosure rated NEMA 3R, which is suited to outdoor and wet-location service such as rain and sleet. For washdown, chemical, or salt-air exposure where a corrosion-resistant enclosure is specified, the Square D VisiPacT VH324NDSGL is a heavy duty fused switch in a NEMA 4X stainless steel enclosure. The trade-off is that the VisiPacT is fused rather than non-fusible, so overcurrent protection moves into the disconnect.
10) What part number do I order for the Eaton 600A NEMA 3R non-fusible K Series switch?
Order Eaton catalog number DH366URK. It is the single configuration: K Series, 600A, 600V, 3-pole, non-fusible, painted galvanized steel NEMA 3R enclosure.
11) Can a NEMA 3R switch like the DH366URK also be used indoors?
Yes, a 3R enclosure is fine indoors. The painted galvanized steel housing suits mechanical rooms, plants, and sheltered exterior walls alike, so facilities often standardize on 3R to run one part number across both. In a clean dry indoor room a NEMA 1 unit such as the Square D VisiPacT unfused switch would also serve.
How fast can I get the Eaton DH366URK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton DH366URK come with a warranty?
Absolutely. The Eaton DH366URK is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton DH366URK?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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