Eaton ER12-1200N3PR Enclosed Rotary Disconnect - NEMA 12
Part Number: ER12-1200N3PR
Quick Summary
ER12-1200N3PR is an enclosed rotary disconnect switch that provides safe isolation for large electrical feeders. Maintaining uptime can be challenging when equipment is undersized, mislabelled, or non-compliant with safety standards. This model carries CE marking and is designed for NEMA 12 enclosures, supporting reliable performance in harsh environments. With a 600 V rating and 1200 A capacity, it aligns with heavy-duty protection strategies, while compact footprint helps installation. Designed for operators and maintenance engineers, it reduces downtime by delivering quick, safe disconnection during routine servicing. CE marking and NEMA 12 enclosure protection ensure compliance in facilities exposed to dust, splash, and variable temperatures.
Product Information
Extended Description
ER12-1200N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 1200A, Red, NEMA rating 12
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER12-1200N3PR
UPC
051712421003
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 12
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 - ER12-1200N3PR
Feature → Business Impact → Application: Non-fused design with a pistol handle simplifies maintenance and reduces spare parts while enabling rapid, safe disengagement during servicing; ideal for high-availability lines in manufacturing and process industries. Feature → Business Impact → Application: 1200 A amperage rating supports high-load isolation for large motor feeders and energy-intensive machinery, reducing fault exposure and downtime while improving safety during startup and maintenance. Feature → Business Impact → Application: NEMA 12 enclosure and CE marking provide environmental protection against dust and moisture while meeting regulatory requirements for industrial facilities; suitable for factories, warehouses, and outdoor-adjacent plants. Feature → Business Impact → Application: Robust yet manageable weight and rugged enclosure improve installation efficiency, serviceability, and retrofit potential in existing switchgear, control panels, and motor control centers. Feature → Business Impact → Application: Comprehensive spec availability (datasheet and catalogs) ensures seamless integration with Eaton Bussmann protection suites and downstream protection coordination. Feature → Business Impact → Application: Ergonomic pistol handle design reduces operator fatigue and contributes to safer isolation practices during shift changes or line changes.
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FAQs
The ER12-1200N3PR is designed for heavy-current isolation in 600 V systems up to 1200 A and is suitable for motor control centers, switchgear, and protection schemes in manufacturing and process facilities operating in NEMA 12 environments.
Non-fused means there are no internal fuses to replace in the switch, simplifying spares and maintenance. The pistol handle provides ergonomic, one-handed operation for quick, safe disconnection during servicing.
The unit is CE marked and designed for NEMA 12 enclosures, which supports compliance in industrial environments with dust and moisture exposure; it is suitable for high-availability installations requiring reliable isolation.
Yes. Eaton provides a specification sheet for ER12-1200N3PR and Bussmann series catalog references, along with the full line catalog no. 1007, to aid selection and integration with protection systems.
Plan for proper enclosure space, clearances for safe operation, and adherence to CE guidelines. Refer to the Eaton datasheet for wiring diagrams, torque specs, and mounting recommendations to ensure compliant, safe isolation.