Eaton DH366URKSNLP Heavy Duty Safety Switch - UL Listed
Part Number: DH366URKSNLP
Quick Summary
Eaton DH366URKSNLP is a heavy-duty quick-connect safety switch for industrial protection in switchgear, motor control centers, and outdoor installations. Downtime from unreliable disconnects and complex wiring stalls projects and erodes uptime, but this unit simplifies wiring and reduces maintenance complexity. UL Listed certification and a rugged NEMA 3R enclosure support reliable operation in harsh environments and during audits. Designed for 600A, three-pole service in Series K, it enables fast commissioning and scalable protection for evolving plant architectures. With Posi-Lok and Eaton compatibility, it delivers secure connections and lower lifecycle costs for critical loads. This integration translates to less downtime, faster panel upgrades, and a safer, more productive electrical infrastructure overall.
Product Information
Extended Description
DH366URKSNLP Eaton: Eaton Quick Connect Safety Switch, Heavy Duty, Single-Throw, 600A, 600V,3P, Unfused, Series K, NEMA 3R, Posi-Lok
Product Name
Eaton quick connect heavy duty safety switch
Catalog Number
DH366URKSNLP
UPC
786685373188
Product Length/Depth
32.87 in
Product Height
74.34 in
Product Width
16.1 in
Product Weight
370 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
Special features
Posi-Lok
Type
Heavy Duty, Single-Throw
Amperage Rating
600A
Number Of Poles
Three-pole
Voltage rating
600 V
Enclosure
NEMA 3R
Fuse configuration
Unfused
Series
Series K
Commercial Distribution, Switching Devices, Volume 2, Tab 1
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
ARMS Enclosed Circuit Breaker
Eaton Specification Sheet - DH366URKSNLP
Selling Policy 25-000 - Distribution and Control Products and Services
600A amperage rating provides robust switching for high-current loads, allowing a single device to handle demanding motor and feeder applications while reducing the need for parallel devices that complicate protection schemes. This capability cuts installation time, simplifies wiring diagrams, and trims spare-parts inventory throughout the lifecycle of the panel. Application: ideal for motor control centers, large pumps, conveyors, and other high-demand equipment in industrial facilities. Three-pole unfused design simplifies wiring and protection coordination across three-phase circuits, delivering predictable interrupting capacity and a cleaner protection scheme. This reduces wiring complexity, minimizes fault points, and lowers ongoing maintenance requirements by reducing component count and potential failure modes. Application: suitable for standard 3-wire 600V power systems in distribution panels, switchgear assemblies, and industrial control rooms where reliability is critical. NEMA 3R enclosure paired with UL Listed certification provides rugged, weather-resistant protection for outdoor and indoor installations while maintaining strict compliance with widely recognized industry standards. This combination reduces weather-related risk, supports safer operation in variable climates, and simplifies audits and certification processes by providing a clearly defined protection level. Application: outdoor substations, loading docks, and plant exteriors in moderate climates where harsh conditions or exposure to humidity are common. Posi-Lok fast-connection feature ensures a secure, vibration-resistant connection even under challenging service conditions, reducing the likelihood of loose contacts during expansion, maintenance, or servicing. This improves reliability by minimizing loosening risk during operation and maintenance cycles and by enabling repeatable, safe disengagement when required. Application: critical loads in environments with equipment vibration, such as packaging lines and heavy manufacturing facilities where downtime penalties are high. Series K compatibility and Eaton protection-portfolio integration streamline installation, wiring, and service through standardized mounting patterns, common wiring practices, and readily available replacement parts. This standardization reduces training time for technicians, ensures consistent spare parts planning, and supports scalable protection across new builds and upgrades by aligning with Eaton's broader portfolio. Application: new installations and panel upgrades where a cohesive Eaton safety-switch ecosystem is desired to simplify maintenance and improve interoperability.
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FAQs
The DH366URKSNLP supports a three-pole, unfused configuration with a Series K enclosure designed for 600V systems. It is UL Listed and suitable for NEMA 3R environments, offering straightforward mounting and wiring in both new builds and panel upgrades. Typical installations include motor control centers and outdoor substations, with adherence to Eaton’s installation guidelines to ensure quick commissioning and reliable protection.
Key specs include a 600A amperage rating, 600V voltage rating, three-pole arrangement, unfused fuse configuration, and NEMA 3R enclosure. The product uses Posi-Lok for secure connections and is part of Eaton's Series K. These details inform protective coordination, cable sizing, and enclosure placement in control panels and switchgear assemblies across industrial facilities.
Yes. The unit features a NEMA 3R enclosure and UL Listed certification, providing reliable protection against weather and indoor exposure. This makes it suitable for outdoor substations, loading docks, and exterior plant areas, while keeping compliance with industry standards and maintaining safe operation in variable climates.
Warranty is defined by Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This coverage supports post-installation service and replacement considerations, with standard terms aligned to distribution and control product segments. For detailed terms, refer to Eaton’s policy document linked in the product resources.
Posi-Lok provides a secure, vibration-resistant connection that minimizes loosening risks during operation and maintenance cycles. This improves long-term reliability and reduces rework during servicing. It also facilitates safer disengagement during maintenance windows and contributes to consistent performance in vibration-prone environments like packaging lines and heavy manufacturing.