Eaton ER4P-40N6SR Enclosed Rotary Disconnect Switch - NEMA 4P
Part Number: ER4P-40N6SR
Quick Summary
ER4P-40N6SR enclosed rotary disconnect switch by Eaton provides reliable isolation for electrical panels and motor circuits. It helps address install and maintenance pain points by offering a compact, non-fused, selector design that simplifies service disconnects. Certified with CE marking and rated NEMA 4P for rugged environments, the unit supports safe operation across indoor and outdoor installations. Designed for industrial control panels and machine isolation, its 600 V, 40 A rating fits common protection architectures and pairs well with Eaton Bussmann series components. This combination supports faster commissioning and ongoing reliability in demanding environments. In daily operations it reduces downtime and supports compliant lockout tagout practices. The selector also supports intuitive manual operation, minimizing operator training.
Product Information
Extended Description
ER4P-40N6SR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Selector, 600V, 40A, Red, NEMA rating 4P
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4P-40N6SR
UPC
051712414777
Product Length/Depth
12 in
Product Height
12.25 in
Product Width
7.5 in
Product Weight
11.24 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
40A
NEMA rating
NEMA 4P
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 - ER4P-40N6SR
Non-fused operation with a selector switch reduces spare parts and streamlines lockout tagout, delivering safer, faster isolation. For panel builders and technicians, this means fewer maintenance events and lower total cost of ownership. Use this in motor control centers and machine isolation points to keep starts clean and compliant. The selector also supports intuitive manual operation, minimizing operator training. The ER4P-40N6SR is rated for up to 600 V and 40 A, enabling direct, code compliant service disconnects for medium sized machines and panels. The robust rating supports reliable disconnection under load, reducing arc flash exposure during maintenance. It is well suited for control cabinets and distribution panels where dependable isolation is non negotiable. This rating also supports straightforward integration with upstream protection devices and wiring schemes. Enclosed in a NEMA 4P housing, the switch provides protection against dust, water, and incidental washdown, making it suitable for indoor and outdoor use. The weather resistant enclosure helps maintain safety and performance in demanding environments without added maintenance. CE marking adds regulatory alignment for European and global installations. With dimensions of 12 in length, 12.25 in height, and 7.5 in width, the unit fits a range of panel depths and mounting configurations. At 11.24 lb, it balances rugged construction with ease of handling during installation. The 12 in depth supports standard panel cutouts and mounting rails, simplifying retrofits and new builds. Designed to integrate with Eaton Bussmann series protection components, it simplifies wiring and reduces installation time in new builds and retrofits. The combination supports standardized spare parts, faster commissioning, and consistent maintenance across facilities.
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FAQs
Install the ER4P-40N6SR by first ensuring the enclosure is properly mounted and rated for the environment. Connect the line and load conductors according to the applicable wiring diagram, secure all terminations to the manufacturer specified torque, and verify the selector handle position. Confirm that the enclosure remains weatherprotected and that a lockout is applied when servicing. Mounting should accommodate the 12 inch depth and the 7.5 inch width while maintaining clearances for safe operation.
Key specs include a 600 V voltage rating and a 40 A current rating, with a NEMA 4P enclosure for environmental protection. It is non fused and uses a selector operation for straightforward isolation. The product measures 12 inches in depth, 12.25 inches in height, and 7.5 inches in width, and the unit weighs 11.24 pounds. The part is CE marked, aligning with European safety requirements.
Yes. The NEMA 4P enclosure provides protection against dust, water ingress, and incidental washdown, making it appropriate for outdoor installations and challenging indoor spaces. CE marking further supports global compliance, and the rugged enclosure helps maintain reliability in harsh environments while enabling safe service isolation.
The ER4P-40N6SR carries CE marking, indicating compliance with essential safety requirements in the European market. The NEMA 4P enclosure rating reflects resistance to dust and water, suitable for industrial environments. These certifications support-wide regulatory compliance and facilitate procurement in facilities that require formal safety and environmental standards.
The non fused selector design reduces spare parts and simplifies lockout tagout procedures, lowering maintenance costs and downtime. The robust NEMA 4P enclosure minimizes weather-related service interruptions, and the compact footprint supports faster commissioning and easier retrofits. Integration with Eaton Bussmann series components standardizes parts and wiring, contributing to predictable maintenance and improved lifecycle cost.