Eaton ER3R-100J3PB Enclosed Rotary Disconnect Switch - NEMA 3R
Part Number: ER3R-100J3PB
Quick Summary
ER3R-100J3PB is an enclosed rotary disconnect switch designed to safely isolate industrial circuits up to 600 V. Maintenance teams contend with arc-flash risk, equipment downtime, and complex lockout procedures; this rugged switch reduces exposure and speeds servicing. With CE marking and a NEMA 3R enclosure, it meets European safety standards and outdoor or harsh indoor environments, helping you simplify compliance and installation. The pistol handle and fuse-class J compatibility provide ergonomic operation and selective protection, while a 100 A rating supports common feeder and panel applications. As a result, maintenance programs gain reliability and procurement benefits from a standardized, space-efficient solution across multiple sites.
Product Information
Extended Description
ER3R-100J3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse class J, Pistol handle, 600V, 100A, Black, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-100J3PB
UPC
051712415767
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-100J3PB~ENC DISC100J NEMA3R BLK
ER3R-100J3PB~ENC DISC100J NEMA3R BLK
Eaton Specification Sheet - ER3R-100J3PB
Enclosed rotary disconnect switches like the ER3R-100J3PB are purpose-built to protect personnel and equipment during maintenance and live-load operations. The rugged enclosure shields internal components from dust, moisture, and incidental impacts, increasing mean time between failures and reducing service interventions in harsh environments. The 600 V, 100 A electrical rating covers a broad range of control panels and feeder circuits, enabling a single, standardized solution across multiple lineups and facilities. Fuse class J compatibility delivers selective protection, preventing nuisance trips and enabling coordinated protection with Bussmann series fuses. The pistol handle enhances ergonomics and operator safety, improving lockout-tagout efficiency and compliance for routine maintenance. NEMA 3R enclosure supports outdoor and semi-outdoor installations, reducing the need for extra enclosure costs and simplifying site planning. CE marking confirms European safety compliance, making procurement easier for multinational projects. Together these features translate into shorter installation lead times, reduced downtime, and lower total cost of ownership over the life of the switch.
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FAQs
Install in a compatible enclosure or panel designed for 100 A, 600 V circuits and ensure the host enclosure provides adequate space and mounting points for the ER3R-100J3PB. Use proper fasteners, maintain required clearances, and follow local electrical codes. The pistol handle should remain accessible for safe operation and lockout/tagout procedures. Refer to the catalog and datasheet for torque and mounting guidelines.
The ER3R-100J3PB is rated for 600 V and 100 A, with a NEMA 3R enclosure. It supports Fuse class J compatibility to enable coordinated protection with Bussmann series fuses. The CE marking confirms European safety compliance, making it suitable for multinational installations while maintaining reliable circuit isolation in distribution and control circuits.
Yes. The NEMA 3R enclosure provides weather resistance suitable for outdoor and semi-exposed indoor installations, protecting the switch and its contacts. Combined with the CE Marked certification for European markets, it is well-suited for outdoor control panels, weather-protected enclosures, and rugged industrial sites requiring reliable isolation and safety.
ER3R-100J3PB carries CE marking, indicating compliance with essential European safety, health, and environmental requirements. The NEMA 3R enclosure rating demonstrates robust enclosure protection. While other certifications are not specified in the data, CE marking is a critical factor for EU procurement and project compliance, helping streamline sourcing and acceptance across European sites.
The combination of a rugged enclosure, ergonomic pistol handle, and 100 A rating simplifies lockout-tagout and routine servicing, reducing maintenance time and exposure to arc-flash risk. Fuse class J compatibility minimizes nuisance trips and supports coordinated protection, reducing downtime and lifecycle costs across sites, which improves overall return on investment for panel modernization or upgrades.