Eaton ER54040UX Enclosed Rotary Disconnect Switch - NEMA 4X
Part Number: ER54040UX
Quick Summary
Eaton enclosed rotary disconnect switch isolates power to motors in control panels, delivering safe, reliable disconnection for industrial equipment. Operators often struggle with corrosion, washdown exposure, and space constraints that complicate maintenance and compliance; this unit's NEMA 4X enclosure and non-metallic body address harsh environments while simplifying cleaning and service. UL Listed and CSA Certified, it supports operation up to 600 V and four-pole isolation, aligning with common motor drives and panel architectures. The compact footprint (10.4 in deep, 7.8 in wide, 6.7 in high) and light 5.5 lb weight help minimize panel rework and installation time. For manufacturers and integrators, this ER54040UX offers dependable isolation, easy retrofits, and a clear path to regulatory compliance in a range of industrial applications.
Product Information
Extended Description
ER54040UX Eaton: Eaton enclosed rotary disconnect switch, 40 A, NEMA 4X, Non-metallic, Max HP:7.5, 7.5, 20, 25 hp (@208,240,480,600 V), Four-pole, Product category: enclosed rotary non-fusible, R-Series, 600 V
Product Name
Eaton enclosed rotary disconnect switch
Catalog Number
ER54040UX
UPC
786685493763
Product Length/Depth
10.4 in
Product Height
6.7 in
Product Width
7.8 in
Product Weight
5.5 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 CSA Certified
Enclosure
NEMA 4X
Enclosure material
Non-metallic
Number of poles
Four-pole
Series
R-Series
Type
Enclosed rotary disconnect
Amperage Rating
40A
HP rating - max
7.5, 7.5, 20, 25 hp (@208,240,480,600 V)
Voltage rating
600 V
Product Category
Enclosed rotary non-fusible
Commercial Distribution, Switching Devices, Volume 2, Tab 1
Switching Devices Flex Center
Eaton Specification Sheet - ER54040UX
Feature: The ER54040UX delivers a 40 A amperage rating in a four-pole configuration, enabling complete isolation of each phase for motor circuits. Business Impact: This reduces the risk of arcing and fault propagation during maintenance, supporting safer lockout procedures and improved personnel protection. Application: Ideal for motor drives, conveyors, and pump skids in manufacturing and process environments where reliable disconnects are required at up to 600 V. Feature: The enclosure is NEMA 4X classified and non-metallic, offering superior corrosion resistance and washdown compatibility. Business Impact: Operators experience lower maintenance intervals and longer service life in harsh environments such as food & beverage, chemical, or outdoor installations. Application: Suitable for panel-mounted disconnects in harsh production lines, outdoor facilities, and wet plant areas. Feature: HP ratings of 7.5, 7.5, 20, 25 hp at 208/240/480/600 V and 600 V voltage rating. Business Impact: Ensures compatibility with a broad range of motor sizes and voltage supplies, reducing the need for multiple devices and speeding up commissioning. Application: Motor control for pumps, fans, and line motors in industrial automation setups. Feature: Certifications include UL Listed and CSA Certified. Business Impact: Demonstrates compliance with critical safety standards, facilitating approvals from plant operators and inspectors. Application: Common in regulated facilities and OEM integrations seeking proven component reliability. Feature: Dimensions of 10.4 in L x 7.8 in W x 6.7 in H and a weight of 5.5 lb support easy installation in existing panels and space-constrained environments. Business Impact: Enables straightforward retrofits and minimal panel redesign, reducing project lead times. Application: Ideal for retrofit projects and new builds where space and weight matter. Feature: R-Series and enclosed rotary non-fusible design simplifies integration into Eaton ecosystems. Business Impact: Streamlines spare parts compatibility and maintenance with existing Eaton products. Application: Panel upgrades and new installations within automated lines that leverage Eaton components.
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FAQs
Yes. ER54040UX is designed for standard panel enclosures that accept a four-pole, non-fusible disconnect. Its dimensions (10.4 in L, 7.8 in W, 6.7 in H) and a weight around 5.5 lb support straightforward retrofit or new installations. The NEMA 4X enclosure provides rugged protection suitable for harsh environments, simplifying wiring and mounting in typical control panels.
ER54040UX supports 40 A and four-pole isolation with a maximum HP rating of 7.5/7.5/20/25 hp across 208/240/480/600 V, and a 600 V voltage rating. These specs enable reliable motor control for a variety of loads, reducing the need for multiple devices and streamlining commissioning in diverse industrial applications.
Yes. The unit uses a non-metallic, NEMA 4X enclosure designed for corrosion resistance and washdown compatibility. UL Listed and CSA Certified, it remains dependable in outdoor or damp facilities, such as processing plants, chemical environments, or outdoor equipment housings, while protecting control wiring and connections.
The ER54040UX is UL Listed and CSA Certified, confirming compliance with key safety and performance standards. These certifications facilitate approvals in regulated facilities and with OEMs, support safe installation, and help ensure reliability across preventive maintenance programs and regulatory audits.
The product follows Eaton's warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Maintenance needs are typically low due to the rugged NEMA 4X enclosure and durable non-metallic construction, which reduces corrosion-related service intervals and extends service life in demanding environments.