Eaton ER4X-40N3PR Enclosed Rotary Disconnect - NEMA 4X
Part Number: ER4X-40N3PR
Quick Summary
ER4X-40N3PR is an enclosed rotary disconnect switch used for safe isolation in industrial electrical panels. Many maintenance and service routines struggle with arc flash risk and complicated lockout procedures; this unit simplifies isolation with a pistol handle. CE Marked and a NEMA 4X enclosure provide rigorous protection for challenging environments, while 600 V, 40 A supports common industrial loads. The design aligns with Eaton Bussmann series hardware, offering a reliable, scalable solution that reduces downtime and supports standard installation practices across facilities.
Product Information
Extended Description
ER4X-40N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 40A, Red, NEMA rating 4X
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4X-40N3PR
UPC
051712487849
Product Length/Depth
0.1 in
Product Height
0.1 in
Product Width
0.1 in
Product Weight
0.1 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
40A
NEMA rating
NEMA 4X
Voltage rating
600 V
Special features
Non-fused, Pistol handle
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER4X-40N3PR
Feature: Non-fused, enclosed rotary disconnect switch. Business Impact: Minimizes arc-flash exposure and simplifies safe isolation, reducing commissioning and maintenance time. Application: Control panels in manufacturing lines where reliable isolation is critical. Feature: Pistol handle design. Business Impact: Improves operator ergonomics and switching confidence under load, lowering risk during device clearances. Application: Routine maintenance, troubleshooting, and lockout/tagout procedures. Feature: Electrical rating of 600 V and 40 A. Business Impact: Supports typical industrial motor and circuit loads without overrating components, lowering total installed cost. Application: Motor control centers and feeder circuits in mid-size facilities. Feature: NEMA 4X enclosure. Business Impact: Provides resistance to dust, water, and washdown, enabling outdoor and harsh-environment use. Application: Outdoor panels, washdown areas, and damp facilities. Feature: CE compliance and Bussmann series compatibility. Business Impact: Ensures global regulatory acceptance and seamless integration with existing Eaton components, improving procurement efficiency. Application: International deployments and standardized panel designs. Feature: Compact form factor with lightweight design. Business Impact: Eases installation in tight fleets and simplifies retrofits. Application: Space-constrained control cabinets and retrofit projects.
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FAQs
When installing the ER4X-40N3PR, ensure mounting footprint fits the panel opening, provide proper clearance for the pistol handle operation, and connect conductors using appropriate torque per the 40 A rating. Use lockout/tagout procedures during maintenance and verify CE Marked compliance for international use. Plan for enclosure seals to preserve the NEMA 4X rating in damp environments.
The NEMA 4X rating indicates a weatherproof, corrosion-resistant enclosure suitable for outdoor and washdown environments. This rating protects internal components from dust, water, and chemicals, reducing the risk of short circuits and downtime. For installation, ensure seals remain intact and provide adequate drainage and ventilation per manufacturer guidelines to maintain rating integrity.
Yes. The ER4X-40N3PR is specified for 600 V and 40 A applications, making it appropriate for many industrial control circuits and motor protection schemes. Always verify system voltage, conductor sizing, and enclosure installation per OSHA/IEC guidelines, and ensure compatibility with downstream devices within the Eaton Bussmann series ecosystem.
Documentation includes the Eaton specification sheet for ER4X-40N3PR and the Bussmann series catalogs. CE compliance is noted, and you can download the full-line catalog No. 1007 and the specification sheet from Eaton's site. These resources support correct installation, wiring practices, and parts compatibility for global deployment.
A non-fused design reduces fuse replacement downtime and simplifies routine maintenance by eliminating fuse handling. It supports rapid isolation for lockout/tagout procedures, lowering maintenance time and exposure. However, ensure downstream protection is provided by upstream devices and that routine inspections confirm enclosure seals and mechanical operation remain within tolerance.