Eaton ER1-40N6SB Enclosed Rotary Disconnect Switch - NEMA 1
Part Number: ER1-40N6SB
Quick Summary
Eaton ER1-40N6SB is an enclosed rotary disconnect switch for safe isolation in electrical panels and motor control centers. Many projects struggle with accidental energization and misoperation during maintenance, leading to downtime and safety incidents. CE marking, NEMA 1 enclosure, and a 600 V, 40 A rating provide essential compliance and robust protection for indoor applications. By integrating protection, control, and isolation in one compact unit, it simplifies procurement and accelerates panel assembly for OEMs and service teams. This aligns with Eaton Bussmann series expectations for reliable electrical protection and ease of maintenance, while offering clear specifications and straightforward sourcing for engineers and technicians.
Product Information
Extended Description
ER1-40N6SB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Selector, 600V, 40A, Black, NEMA rating 1
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER1-40N6SB
UPC
051712414678
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 1
Voltage rating
600 V
Special features
Non-fused, Selector
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER1-40N6SB
Feature → Business Impact → Application: The ER1-40N6SB is a non-fused, selector-type rotary disconnect. This configuration reduces spare parts and eliminates fuse maintenance, lowering total cost of ownership and heat generation in starter circuits. It excels in service modes where technicians must manually isolate a line before work and requires minimal action to re-energize after maintenance, making it ideal for panel-mounted motor starters and control centers. Feature → Business Impact → Application: With a 600 V voltage rating and 40 A amperage rating, the switch handles common industrial loads with confidence. The rated capability translates to fewer component substitutions and enhanced system reliability, minimizing unscheduled downtime due to improper isolation. Use it for mid-power feeders, machine controls, and process panels where robust isolation is a must. Feature → Business Impact → Application: The NEMA 1 enclosure and CE marking deliver indoor protection and regulatory alignment. This helps meet procurement requirements and simplifies compliance documentation for audits. The combination supports safe operation in factory environments and reduces the risk of external contaminants affecting performance. Feature → Business Impact → Application: As part of the Eaton Bussmann series, ER1-40N6SB offers proven compatibility with a broad ecosystem of protection devices and control components. Standardized dimensions and wiring practices streamline installation, spare-parts planning, and maintenance scheduling across multiple plants. This fosters consistent performance and easier cross-site deployment. Feature → Business Impact → Application: Installation is straightforward in existing panels, with clear cataloging and sourcing from standard distributors. The device supports fast replacement and reduced downtime when performing routine isolation tasks, contributing to a lower total cost of ownership in assembly lines and facilities with strict uptime requirements.
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FAQs
To install the ER1-40N6SB, ensure the panel has an appropriate cutout for a rotary disconnect of the chosen depth and width, and mount the device securely using standard hardware. Confirm vertical or horizontal orientation per panel design, connect line and load conductors with proper torque, and verify that the housing is clean and free of debris. The unit is designed for straightforward integration into typical industrial control panels and motor control centers, with wiring practices aligned to Bussmann series standards for reliability and ease of maintenance.
The ER1-40N6SB is rated for 600 V, 40 A, with a NEMA 1 enclosure and non-fused selector operation. These ratings support safe isolation for mid-power circuits in indoor environments, reducing the risk of unintended energization. In practice, this means predictable performance for control panels, motor starters, and process equipment, with fewer maintenance cycles due to fused components and clearer, faster service procedures.
Yes. The 600 V, 40 A rating paired with a NEMA 1 enclosure makes the ER1-40N6SB well-suited for indoor motor control centers, process panels, and other indoor control applications where reliable isolation is required. Its non-fused, selector design simplifies operation and maintenance, supporting safe servicing of motors and power distribution without introducing fuse-related failures or nuisance trips.
The ER1-40N6SB features CE marking and a NEMA 1 enclosure rating, aligning with international and U.S. industry standards for indoor electrical equipment. These certifications matter for regulatory compliance, procurement approval, and safe integration into standard control architectures. CE marks help meet European market requirements, while NEMA 1 ensures basic indoor dust and incidental moisture protection in typical factory environments.
Maintenance planning should focus on periodic inspection of the selector mechanism and electrical connections, with emphasis on ensuring proper door closure and alignment. Because it is non-fused, the unit reduces fuse maintenance and spare parts consumption, lowering lifecycle costs. The device also minimizes downtime during servicing by offering straightforward disconnection and rapid re-energization, contributing to higher uptime and improved return on investment for facilities with regular isolation needs.