Eaton ER54030UD Enclosed Rotary Disconnect - UL Listed

Part Number: ER54030UD
Manufacturer
Eaton
Part number
ER54030UD

Quick Summary

The Eaton enclosed rotary disconnect ER54030UD provides safe motor isolation for industrial equipment. Maintenance teams face space constraints, exposure to dust or moisture, and wiring complexity; this unit consolidates disconnect functionality in a compact, durable enclosure. UL Listed and CSA Certified, it leverages a rugged NEMA 12/3R enclosure to protect controls in demanding environments. With a 30 A rating and four poles, it delivers reliable isolation while minimizing installation footprint, helping reduce downtime and total cost of ownership. This solution supports efficient motor control, straightforward field service, and scalable integration in retrofit or new-build projects.

Product Information

Extended Description

ER54030UD Eaton: Eaton enclosed rotary disconnect switch, 30 A, NEMA 12/3R, Painted galvanized steel, Max HP:7.5, 7.5, 15, 20 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
ER54030UD
UPC
786685493831
Product Length/Depth
10.4 in
Product Height
6.7 in
Product Width
7.2 in
Product Weight
6.2 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
Catalog Notes
NEMA Type 12 enclosures (16–80A) can be field modified to meet NEMA Type 3R rainproof requirements when a factory-provided drain hole is opened.
Enclosure
NEMA 12, NEMA 3R
Enclosure material
Painted galvanized steel
Number of poles
Four-pole
Series
R-Series
Type
Enclosed rotary disconnect
Amperage Rating
30A
HP rating - max
7.5, 7.5, 15, 20 hp (@208,240,480,600 V)
Voltage rating
600 V
Product Category
Enclosed rotary non-fusible
Feature → Business Impact → Application: Enclosure and rating deliver dust and moisture protection (NEMA 12/3R) for critical control wiring, reducing corrosion risk and maintenance costs in manufacturing lines. This enables longer service intervals and improved uptime for conveyors and pumps, especially in wash-down or dusty environments. Application: food processing, packaging, and automotive assembly lines with aggressive environments. Feature → 30A amperage rating supports common motor loads, enabling a single disconnect for most 1–10 HP motors at multiple voltages; outcome is simplified wiring and lower panel complexity. Application: small to mid-size motor control centers and device disconnects. Feature → Four-pole design ensures full isolation of all conductors, improving worker safety during maintenance and meeting strict lockout requirements. Application: emergency shutdowns and routine servicing in rugged production floors. Feature → R-Series enclosure and painted galvanized steel provide robust structural integrity; outcome is durable long-term performance under vibration and thermal cycling. Application: retrofits in existing panels and new installations in heavy-duty automation environments. Feature → Catalog notes allow field modification to meet 3R rainproof requirements when needed, enabling outdoor or weather-exposed installations without replacing the enclosure. Application: outdoor equipment rooms and protected exterior motor control stations. Feature → UL Listed and CSA Certified approvals support regulatory compliance and supplier qualification, reducing procurement risk. Application: corporate compliance programs and end-user audits. Feature → Compact footprint with documented dimensions (10.4 in L × 7.2 in W × 6.7 in H) simplifies mounting in crowded panels and reduces enclosure footprint. Application: panel design and space-limited control cabinets.

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FAQs

ER54030UD uses a NEMA 12/3R enclosure to protect internal wiring from dust and moisture. For outdoor or exposed locations, note that NEMA 12 enclosures up to 80A can be field modified for 3R rain resistance by opening a drain hole, which requires proper sealing and installation clearances. Ensure adequate protection against ambient contaminants and maintain proper wiring clearances per code.
The switch is rated 30A with HP ratings of 7.5, 7.5, 15, and 20 hp at 208/240/480/600 V. This supports typical small- to mid-size motors, allowing a single disconnect to cover a range of machines. When designing a panel, consider using a four-pole configuration for full isolation and leaving space for wiring and future expansion if higher HP motors are planned later.
ER54030UD is specified with NEMA 12/3R ratings. Outdoor suitability depends on the enclosure selection and field modifications. The catalog notes indicate NEMA 12 enclosures can be modified to meet 3R rainproof requirements by opening the drain hole, enabling outdoor or rain-exposure installations with appropriate protective measures and mounting considerations.
ER54030UD is UL Listed and CSA Certified, confirming adherence to recognized safety and performance standards. These certifications simplify supplier qualification, support regulatory compliance in many regional markets, and aid in passing internal audits for electrical installation projects.
Choosing ER54030UD can reduce downtime by providing reliable, isolated motor disconnects in a compact, field-service-friendly enclosure. The one-year warranty (or 18 months from shipment) adds protection against early failures, while the four-pole design and rugged enclosure minimize maintenance intervals, contributing to lower lifecycle costs and predictable maintenance budgeting.