Eaton ER3R-100N3PR Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-100N3PR
Quick Summary
The Eaton ER3R-100N3PR is an enclosed rotary disconnect switch used to safely isolate electrical circuits in industrial equipment. Engineers often struggle with downtime and unsafe access during maintenance, especially in crowded control panels. This unit carries CE marking and a NEMA 3R enclosure rating, ensuring safe operation across indoor and outdoor installations. Its non-fused design and pistol handle support fast, controlled switching, while the 600 V, 100 A rating covers many motor and power distribution applications. Designed for reliable performance, it helps reduce service time, improve compliance, and protect personnel without complicating procurement or installation. For panel builders and maintenance teams, this means safer work, faster changeovers, and lower total cost of ownership.
Product Information
Extended Description
ER3R-100N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 100A, Red, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-100N3PR
UPC
051712488426
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
100A
NEMA rating
NEMA 3R
Voltage rating
600 V
Special features
Non-fused, Pistol handle
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER3R-100N3PR
Feature → Business Impact → Application: The non-fused, enclosed design provides a clear safe-state during service, reducing arc flash exposure and enabling safer maintenance workflows within electrical panels and machinery control enclosures. This translates to measurable safety gains, lower risk of unplanned outages, and faster changeouts in production lines that rely on quick isolation during repairs or resets. Application is broad across conveyors, pumps, and machine tools where reliable isolation is critical. Feature → Business Impact → Application: A 600 V / 100 A electrical rating covers mainstream motor and power distribution circuits, enabling direct replacement or retrofit in common industrial installations. This reduces hardware complexity and inventory needs while supporting compliant, predictable performance in uptime-critical environments. Feature → Business Impact → Application: NEMA 3R enclosure delivers weather and corrosion resistance suitable for outdoor and harsh indoor environments, minimizing enclosure ingress and extending service intervals. This supports equipment in loading docks, outdoor panels, and exposed plant areas. Feature → Business Impact → Application: CE marking provides regulatory clarity for cross-border deployments, simplifying procurement and reducing compliance risk in European and other CE markets. Feature → Business Impact → Application: The compact, ship-ready form factor and compatibility with Bussmann series cataloging facilitate easy integration into existing electrical protection schemes, enabling faster installation and streamlined maintenance planning. Feature → Business Impact → Application: The pistol handle and non-fused operation reduce training time for operators and technicians, promoting safer activation sequences and more predictable switching transients in start/stop cycles.
Get a Quick Quote for a Eaton ER3R-100N3PR
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton ER3R-100N3PR?
Enquire Now
FAQs
When retrofitting or installing in new builds, verify available panel space to accommodate an enclosed rotary switch, confirm wiring terminations meet 600 V rated insulation, and align actuator orientation with service access. Use the pistol handle for controlled operation and install in a location with adequate clearance for safe engagement and disengagement during maintenance.
ER3R-100N3PR uses a NEMA 3R enclosure, which provides weather and dust resistance suitable for outdoor and harsh indoor environments. This reduces ingress risk, extends service intervals, and supports reliable isolation in exposed plant areas such as loading docks and exterior switchgear housings.
The unit carries CE marking, aligning it with EU safety and performance standards. This facilitates cross-border procurement and ensures regulatory alignment in European markets, while its rigid enclosure and non-fused design contribute to overall electrical protection system compliance.
Yes. With a 600 V voltage rating and 100 A amperage rating, ER3R-100N3PR is suitable for isolating common motor control circuits, conveyors, pumps, and other equipment within this electrical range, providing reliable switching and safe maintenance access.
Non-fused operation reduces maintenance complexity and spare-part requirements, while the pistol handle offers fast, repeatable operation, contributing to reduced downtime during servicing. Over time, this can lower total cost of ownership by minimizing service time, improving uptime, and simplifying regulatory compliance in panel-mounted applications.