Eaton DH426SNRKLC Quick Connect Heavy Duty Switch - UL Listed
Part Number: DH426SNRKLC
Quick Summary
The Eaton DH426SNRKLC quick connect heavy duty safety switch protects electrical systems in industrial facilities. In harsh environments, unreliable switching and unexpected outages can derail production and increase maintenance costs. This unit comes with UL Listed certification and a NEMA 3R enclosure, ensuring dependable outdoor or weather-exposed operation, and it uses a fusible with switched neutral configuration for precise protection. Series K design and Cam-Lok compatibility simplify field installation and future expansion. By delivering reliable isolation for four-pole 600 A circuits at 240 V, this safety switch supports compliance with electrical codes while reducing downtime. Ideal for motor control centers, feeders, and high-current distribution, it aligns with safety and efficiency goals.
Product Information
Extended Description
DH426SNRKLC Eaton: Eaton Quick Connect Safety Switch, Heavy Duty, Single-Throw, 600A, 240V, 4P, Fusible with switched neutral, Series K, NEMA 3R, Cam-Lok
Product Name
Eaton quick connect heavy duty safety switch
Catalog Number
DH426SNRKLC
UPC
786685373966
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
Cam-Lok
Type
Heavy Duty, Single-Throw
Amperage Rating
600A
Number Of Poles
Four-pole
Voltage rating
240V
Enclosure
NEMA 3R
Fuse configuration
Fusible with switched neutral
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 - DH426SNRKLC
Feature: 600A, four-pole configuration. Impact: Enables safe, high-current isolation for large motor loads with minimal voltage drop and clean switching during startup and shutdown. Application: Ideal for main feeders in motor control centers and power distribution panels. Feature: NEMA 3R enclosure. Impact: Provides weather-resistant protection for outdoor and harsh indoor environments, reducing corrosion risk and maintenance. Application: Outdoor substations, rooftops, and rugged factory floors. Feature: Fusible with switched neutral. Impact: Simplifies protection schemes, supports selective coordination, and reduces components in the control circuit. Application: Main disconnects and protective fuse schemes in heavy-duty systems. Feature: Cam-Lok quick-connects. Impact: Speeds wiring and reduces field termination errors, cutting installation time and downtime. Application: Control panels and switchgear where rapid serviceability matters. Feature: Series K, heavy-duty construction. Impact: Delivers durable performance under vibration, dust, and temperature fluctuations for long service life. Application: Industrial plants with demanding duty cycles and frequent cabinet access. Feature: UL Listed certification. Impact: Ensures compliance with widely adopted safety standards, easing procurement and commissioning. Application: Facilities requiring validated safety compliance for electrical protection devices.
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FAQs
For installation in motor control centers and distribution panels, ensure a compatible enclosure with NEMA 3R protection and adequate clearance for Cam-Lok connections. Follow Eaton wiring diagrams for a fusible with switched neutral configuration, verify torque on terminations, and confirm system voltage and current are within the 240V, 600A rating. Perform proper system isolation during commissioning.
The 600A four-pole rating supports high-current motor starting and robust protection for all phases, reducing voltage drop during switching and enabling reliable disconnects under heavy load. This configuration minimizes arcing and wear, improving safety and reducing maintenance intervals in high-demand applications such as conveyors, pumps, and large fans.
Yes. The NEMA 3R enclosure provides weather-resistant protection suitable for outdoor or harsh indoor environments. When installing outdoors, ensure the enclosure is mounted securely, consider ambient temperature, and verify sealing integrity to maintain insulation and safety. UL Listed certification further supports code compliance for outdoor electrical protection devices.
The DH426SNRKLC is UL Listed, with a NEMA 3R enclosure and Series K heavy-duty design. These certifications support electrical code compliance, reliability in demanding environments, and simplified procurement and commissioning processes for industrial facilities seeking validated safety products.
The combination of a robust four-pole 600A rating, weather-resistant enclosure, and Cam-Lok connections translates to lower downtime, faster serviceability, and fewer field termination failures. The durable Series K construction reduces replacement cycles and maintenance frequency, delivering measurable total cost of ownership savings over conventional switches in high-load applications.