Eaton ER3R-1200N3PR Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-1200N3PR
Quick Summary
ER3R-1200N3PR is an enclosed rotary disconnect switch used to safely isolate electrical feeders in industrial installations. Many projects struggle to find a rugged, non-fused disconnect that is easy to install and maintain, reducing downtime. It carries CE marking and a NEMA 3R enclosure rating, confirming European safety compliance and outdoor suitability. With non-fused operation and a pistol handle, the design supports fast, safe switching, reducing maintenance costs while meeting industry standards. Engineers will value the clear product naming and documented compatibility with Eaton Bussmann series accessories, simplifying procurement and installation. Used where reliable, code-compliant isolation is mandatory, this unit supports safer maintenance routines and faster service restoration.
Product Information
Extended Description
ER3R-1200N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 1200A, Red, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-1200N3PR
UPC
051712420945
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
1200A
NEMA rating
NEMA 3R
Voltage rating
600 V
Special features
Non-fused, Pistol handle
ER3R-1200N3PR~ENC DISC1200NF NEMA3R RED
ER3R-1200N3PR~ENC DISC1200NF NEMA3R RED
Eaton Specification Sheet - ER3R-1200N3PR
Feature → Business Impact → Application: The ER3R-1200N3PR is a non-fused enclosed rotary disconnect switch, which reduces replacement fuse inventory and potential supply chain delays, leading to lower maintenance costs and streamlined spares management for outdoor substations and panelboards. This model’s rugged enclosure and pistol-style handle enable quick, ergonomic operation, minimizing operator fatigue and exposure during routine isolation tasks for motor feeders and process lines. Such robustness translates to higher up-time and safer shutdowns in high-cycle environments, including packaging, material handling, and water treatment plants, where reliable isolation is critical. With a 600 V rating and 1200 A capacity, it accommodates large feeders and high-current services, reducing the need for multiple smaller disconnects. The NEMA 3R specification ensures weather resistance, while CE marking confirms compliance across EU and global facilities, supporting cross-border procurement and installations. This switch is well-suited for Eaton Bussmann series integrations, aiding standardization and warranty alignment. Installation benefits include straightforward wiring, clear labeling, and compatibility with existing Eaton electrical protection products, minimizing downtime during upgrade projects. In practice, engineers report faster commissioning, simplified maintenance planning, and clearer documentation trails when substituting older non-fused switches with this unit.
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FAQs
This product is a non-fused enclosed rotary disconnect switch rated for 600 V and 1200 A with a NEMA 3R enclosure. For installation, ensure proper panel or enclosure mounting, correct electrical clearances, and suitable wiring methods per local codes. The pistol-handled mechanism supports ergonomic operation, and CE compliance helps verify European safety expectations during setup.
Yes. The unit is specified with a NEMA 3R enclosure, providing rain and outdoor exposure protection suitable for exterior panels and sheltered outdoor locations. CE marking further supports regulatory compliance in outdoor installations across many regions. It is non-fused, which simplifies the protective coordination in outdoor feeder circuits.
Ideal for feeder isolation and motor disconnects in panels, switchgear, and outdoor enclosures. The 600 V / 1200 A rating supports high-current applications, while the non-fused design reduces spare parts and maintenance complexity. It integrates smoothly with Eaton Bussmann series protection products, supporting standardized, reliable isolation in manufacturing lines, processing facilities, and packaging operations.
The ER3R-1200N3PR carries CE marking and a NEMA 3R rating, indicating compliance with European safety requirements and suitability for outdoor installation. These certifications support cross-border procurement and adherence to industry safety standards for electrical protection and circuit control equipment.
Because the ER3R-1200N3PR is non-fused with a pistol handle, maintenance needs center on mechanical operation checks, enclosure integrity, and wiring connections rather than fuse replacements. The robust NEMA 3R enclosure reduces weather-related wear, contributing to longer service intervals and reduced downtime, which translates to lower total cost of ownership in high-demand facilities.