Eaton ER3R-100J3PR Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-100J3PR
Quick Summary
Eaton ER3R-100J3PR is an enclosed rotary disconnect switch for safe isolation of 600 V, 100 A circuits. Maintenance downtime and arc-flash risk derail projects when disconnections are unreliable or hard to access. This unit carries CE marking and a NEMA 3R enclosure rating to meet regulatory and environmental demands. Designed for integration in Eaton Bussmann series protection schemes, it delivers reliable isolation for control panels, motor drives, and distribution enclosures, helping to reduce unplanned downtime and improve safety. The pistol-style handle provides ergonomic operation, while the fuse class J feature enhances protective coordination across protection devices.
Product Information
Extended Description
ER3R-100J3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse class J, Pistol handle, 600V, 100A, Red, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-100J3PR
UPC
051712415828
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
19 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
100A
NEMA rating
NEMA 3R
Voltage rating
600 V
Special features
Fuse class J, Pistol handle
ER3R-100J3PR~ENC DISC100J NEMA3R RED
ER3R-100J3PR~ENC DISC100J NEMA3R RED
Eaton Specification Sheet - ER3R-100J3PR
Feature: Enclosed rotary disconnect design provides a robust, weather-resistant isolation point. Business Impact: Improves worker safety and system reliability by preventing accidental energization during maintenance. Application: Ideal for control panels and distribution enclosures in industrial facilities where top-priority protection and easy access are required. Feature: 600 V and 100 A ratings align with common industrial routines, enabling consistent protection across motor controllers and feeders. Business Impact: Reduces overcurrent risk and simplifies system design by consolidating switching and protection in one component. Application: Suitable for motor control centers and line-side disconnects in manufacturing lines. Feature: Fuse class J compatibility enhances protection coordination with fuse-based protection schemes. Business Impact: Minimizes nuisance blows and ensures selective tripping to safeguard downstream equipment. Application: Works within Eaton Bussmann series protection architectures for streamlined maintenance. Feature: Pistol-style handle and red enclosure improve operator visibility and ergonomics. Business Impact: Accelerates safe operation and reduces handling errors during lockout/tagout. Application: Field and panel-mounted installations where quick, secure switching is essential. Feature: CE marked and NEMA 3R enclosure rating provide regulatory and environmental assurance. Business Impact: Supports global compliance and outdoor or damp environments with reliable protection. Application: Industrial plants, process lines, and outdoor equipment housings requiring rugged isolation.
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FAQs
Yes. The ER3R-100J3PR is designed as part of Eaton Bussmann series protection schemes and uses fuse class J coordination. This compatibility allows you to consolidate switching and overcurrent protection in a single enclosure, simplifying panel design and maintenance while ensuring coordinated protection across devices.
The switch is rated for 600 V and 100 A, with a NEMA 3R enclosure rating for outdoor or damp environments. It is CE marked and features a fuse class J protection approach with a pistol-style handle for ergonomic operation, making it suitable for heavy industrial control panels and motor drives.
Common applications include control panels, motor control centers, distribution enclosures, and process lines where safe isolation is required during maintenance. Its rugged NEMA 3R enclosure and visible red actuator aid quick identification, improving overall maintenance safety and uptime in manufacturing and processing environments.
Plan for a panel or dedicated enclosure location with clear access to the pistol handle, and ensure proper mounting to support the 600 V system. Verify environment supports CE compliance and that the enclosure rating matches exposure conditions. Use associated Bussmann series protection where protective coordination is desired to optimize downtime and maintenance workflows.
By combining switching and protection in a single unit, the ER3R-100J3PR reduces maintenance complexity and downtime, lowers mis-wiring risk, and improves safety during lockout/tagout. Its CE and NEMA 3R compliance help minimize regulatory concerns, enabling faster commissioning and predictable long-term performance in industrial facilities.