Eaton ER3R-40N6SR Enclosed Rotary Disconnect Switch - NEMA 3R

Part Number: ER3R-40N6SR
Manufacturer
Eaton
Part number
ER3R-40N6SR

Quick Summary

Eaton ER3R-40N6SR enclosed rotary disconnect switch safely isolates electrical circuits in industrial control panels. It reduces downtime and mis-wiring risks by providing a clear, lockable on/off selector during maintenance and commissioning. Key certifications include CE marking for global compliance and a NEMA 3R rating for outdoor or rugged indoor use, ensuring reliable operation in harsh environments. The design supports safety-oriented installation with compatible mounting footprints and standardized wiring practices, aligning with industry codes and reducing commissioning time. In short, it combines proven protection, ease of use, and regulatory confidence to improve uptime, safety, and total cost of ownership for electrical systems.

Product Information

Extended Description

ER3R-40N6SR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Selector, 600V, 40A, Red, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-40N6SR
UPC
051712414746
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 3R
Voltage rating
600 V
Special features
Non-fused, Selector
Feature: Enclosed rotary disconnect switch construction provides reliable, visible isolation of circuits within industrial control panels. Business impact: by preventing accidental energization during maintenance and enabling straightforward lockout-tagout procedures, it helps reduce safety incidents and unplanned downtime. Application: well suited for motor control centers, panelboards, and service disconnect points in manufacturing, packaging, and process facilities where clear status indicators and rugged enclosure are required. Feature: Non-fused selector configuration minimizes downtime and simplifies maintenance by removing fuse handling and fuse replacement steps from routine isolation tasks. Business impact: lowers spare parts inventory, reduces risk of fuse-related faults, and speeds up startup sequencing after maintenance. Application: ideal for control circuits where isolation is needed without integrated fusing, such as conveyor drives, pump circuits, and machine-tool feeds in busy production lines. Feature: Electrical rating supports broad mid-range load control with 600 V and 40 A, providing robust capability for motor, feeder, and auxiliary circuits. Business impact: permits safe switching of common industrial loads without oversizing equipment, improving panel density and reducing wiring complexity through standardized disconnects. Application: particularly valuable in motor control centers, machine sections, and line-side disconnect points where reliable on/off control is essential. Feature: NEMA 3R enclosure delivers outdoor and damp location reliability with weather resistance and rugged construction. Business impact: minimizes corrosion risk, extends service intervals, and reduces field servicing in harsh environments. Application: ideal for exterior switchgear connections, rooftop equipment, and process lines in outdoor factories or wash-down areas where visibility and safety matter. Its standardized mounting and wiring practices help engineers reuse existing panel designs and training materials. Feature: CE marking and a high-visibility red actuator support international procurement and quick status recognition. Business impact: accelerates cross-border projects, reduces misidentification in busy environments, and aligns with corporate compliance programs. Application: fits global plant networks, engineering specs, and supplier standards where consistent, clearly labeled isolation devices are required.

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FAQs

Consider panel compatibility and safety procedures. Verify the panel and circuit meet 600 V, 40 A rating; ensure a non-fused selector is used; implement lockout/tagout; confirm CE marking and NEMA 3R suitability. Use proper wiring practices and acceptable enclosure mounting; ensure color coding for status to support quick operator recognition.
Key specs include 40 A amperage rating, 600 V voltage rating, NEMA 3R enclosure, CE marking, and a non-fused selector. The device is designed for safe isolation in industrial facilities and is suitable for mid-range loads. It supports clear on/off operation with a red actuator for visibility. Operating conditions follow standard industrial practice, with compatible wiring, mounting, and compatibility with standard disconnect enclosures.
Best suited for motor control centers, panel boards, and service disconnects where reliable isolation and visual status are important. It supports outdoor or damp environments when mounted in a weather-protected enclosure due to its NEMA 3R rating, while the red actuator aids operator recognition during shift changes and maintenance. This makes it a practical choice for food processing, packaging lines, and continuous manufacturing.
CE marking indicates conformity with European safety and electrical standards, simplifying cross-border procurement and audits. A NEMA 3R rating provides weather resistance for outdoor and damp locations, reducing enclosure openings and maintenance needs. Together they support robust regulatory compliance and dependable field performance in mixed industrial environments. This reduces project risk and supports faster commissioning.
Expected ROI comes from reduced downtime, lower spare parts inventory (no fused components), safer maintenance workflows, and faster panel commissioning. The non-fused selector minimizes fuse-related faults, while the 600V/40A rating matches common industrial loads. Over time, this translates to lower total cost of ownership and improved plant reliability. Support from supplier documentation, warranty terms, and availability of catalogs can further shorten upgrade cycles.