Eaton DH321URKA1240 Auxiliary Power Switch - UL Listed
Part Number: DH321URKA1240
Quick Summary
The Eaton auxiliary power switch provides reliable control of non-fusible, three-pole power distribution in industrial panels. End users often deal with unexpected downtime caused by undersized switches or wiring errors that complicate maintenance. UL Listed safety certification and a rugged NEMA 3R enclosure help withstand moisture, dust, and outdoor conditions while 240 VAC at 30 A supports demanding loads. The combination of heavy-duty construction and straightforward installation translates to faster commissioning, easier service, and lower lifecycle costs for electrical teams. For manufacturers aiming for compliant, scalable control in harsh environments, this solution delivers reliability, safety, and value.
Product Information
Extended Description
DH321URKA1240 Eaton: Eaton auxiliary power switch, Single-throw, 30A, NEMA 3R, Painted galvanized steel, , Non-fusible, Three-pole, Three-wire, 240 VAC, 3 at 240 Vac TD 1 Ph, 10 at 240 Vac TD 3 Ph
Product Name
Eaton auxiliary power switch
Catalog Number
DH321URKA1240
UPC
782116418039
Product Length/Depth
16 in
Product Height
24.93 in
Product Width
26.58 in
Product Weight
108 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
Amperage Rating
30A
Voltage rating
240 VAC
Enclosure
NEMA 3R
Enclosure material
Painted galvanized steel
Fuse configuration
Non-fusible
Number Of Poles
Three-pole
Number of wires
3
Type
Single-throw
Product Category
Heavy Duty, Non-Fusible
Special features
15A GFI receptacle
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Eaton Specification Sheet - DH321URKA1240
Feature: Single-throw, three-pole, non-fusible design provides straightforward control of 240 VAC circuits. Business impact: Simplifies the control scheme, reduces fuse replacements, and lowers maintenance costs in harsh environments. Application: Ideal for heavy-duty industrial panels and distributed load control where reliable open/close signaling is essential. Feature: NEMA 3R enclosure with painted galvanized steel delivers weather resistance and robust protection against dust and moisture. Business impact: Increases device longevity and reduces corrosion-related downtime in outdoor or damp locations. Application: Suitable for outdoor control panels, factory exteriors, and exposed installations where environmental protection is required. Feature: UL Listed certification confirms compliance with electrical safety standards. Business impact: Supports easier regulatory approvals and audit readiness, reducing project risk. Application: Meets safety requirements for industrial facilities, OEM panels, and service classrooms. Feature: Defined footprint and weight—16 in depth, 24.93 in height, 26.58 in width, 108 lb top-end mass. Business impact: Aids planning for panel real estate, mounting hardware, and vibration considerations. Application: Enables precise space budgeting during panel fabrication and retrofit projects. Feature: Heavy-duty, non-fusible, three-pole configuration for 3-wire 240 VAC systems. Business impact: Improves switching reliability and simplifies panel wiring diagrams. Application: Ideal for control circuits in heavy-duty distribution and machine controls, with straightforward integration.
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FAQs
Plan for a clean, secure mounting by verifying the three-pole, non-fusible configuration and ensuring space for the 16 in depth, 26.58 in width, and 24.93 in height footprint. Use compatible mounting hardware and adequate clearance for access and wiring. Confirm enclosure is NEMA 3R rated and that the panel interior is rated for 240 VAC to avoid heat buildup.
The switch is rated for 30A at 240 VAC, providing reliable non-fusible control for 3-wire, three-pole circuits. It supports straightforward on/off operation with a robust mechanical switch design suitable for load switching in heavy-duty panels where consistent current handling and voltage stability are required.
Yes. The NEMA 3R enclosure and painted galvanized steel housing offer weather and corrosion resistance appropriate for outdoor installations and damp locations. UL Listed certification further confirms safety compliance for industrial applications. Ensure proper sealing, drainage, and adherence to local electrical codes when used in outdoor configurations.
UL Listed certification indicates the product meets recognized safety standards, supporting regulatory approvals and audits. The NEMA 3R enclosure rating adds environmental protection for outdoor or harsh sites. Combined with a 240 VAC, 30A non-fusible rating, this switch supports compliant integration in heavy-duty control systems and helps streamline procurement and verification processes.
Maintenance involves periodic inspection of connections and mounting integrity, with minimal moving parts reducing wear. The sturdy 108 lb enclosure signals durability and long service life in demanding facilities. The UL Listed certification and robust construction help reduce downtime costs while simplifying spare part procurement and warranty coverage (one year from installation or 18 months from shipment).