Eaton ER12-40N3PB Enclosed Rotary Disconnect Switch - NEMA 12
Part Number: ER12-40N3PB
Quick Summary
Eaton ER12-40N3PB enclosed rotary disconnect switch provides safe isolation for electrical panels and equipment. For engineers, achieving reliable isolation without service interruptions is a persistent challenge in harsh industrial environments. This unit is CE marked and designed for NEMA 12 enclosures, with a 600 V, 40 A rating to support mid- to high-demand applications. Its non-fused design and pistol-style handle simplify lockout/tagout procedures, while compact construction supports tight panel spaces. Together, these features deliver safer, more reliable electrical protection and streamlined circuit control for automation and power distribution systems.
Product Information
Extended Description
ER12-40N3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 40A, Black, NEMA rating 12
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER12-40N3PB
UPC
051712487801
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
40A
NEMA rating
NEMA 12
Voltage rating
600 V
Special features
Non-fused, Pistol handle
ER12-40N3PB~ENCLOSED DISCONNECTS
ER12-40N3PB~ENCLOSED DISCONNECTS
Eaton Specification Sheet - ER12-40N3PB
Feature: Non-fused, enclosed rotary disconnect switch → Business Impact: Reduces maintenance risk and exposure to live components, enabling safer maintenance workflows and lower arc-flash potential → Application: Panel isolation in industrial electrical protection and circuit control. Feature: 600 V, 40 A rating with NEMA 12 enclosure → Business Impact: Supports mid- to high-demand equipment and protects internal components from dust and indoor contaminants, ensuring reliable operation in typical plant environments → Application: Indoor electrical protection and control circuits in manufacturing lines. Feature: Pistol handle with ergonomic operation → Business Impact: Faster, safer actuation with reduced operator fatigue, improving changeover times during maintenance or testing → Application: Routine switch operations in control panels and distribution enclosures. Feature: CE marking and compliance → Business Impact: Facilitates cross-border procurement and regulatory alignment, reducing compliance risk for EU projects → Application: International project deployments and standardized electrical protection. Feature: Compatibility with Bussmann series offerings → Business Impact: Seamless integration with existing Eaton protection catalog, lowering sourcing complexity and spare parts inventory → Application: Scalable protection schemes for modular panel builds and retrofit projects.
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FAQs
The ER12-40N3PB is designed for non-fused isolation in 600 V, 40 A electrical systems within indoor industrial panels. Its NEMA 12 enclosure and pistol handle support reliable protection for control circuits and power distribution in manufacturing lines, packaging, and process automation environments, aligning with Eaton Bussmann series protection strategies.
This unit is rated for 40 A and 600 V, with a NEMA 12 enclosure specification. It is non-fused and features a pistol-style handle for ergonomic operation, making it suitable for indoor control panels and equipment requiring robust isolation and protection.
The non-fused design reduces components to inspect and replace, lowering maintenance time and exposure to live parts. The pistol handle enables quick, safe actuation with lockout/tagout compatibility, helping technicians perform isolation tasks faster while maintaining compliance with typical plant safety protocols.
Yes, the ER12-40N3PB is CE marked, indicating conformity with applicable European health, safety, and environmental requirements. This facilitates procurement for EU projects and cross-border maintenance, while retaining its NEMA 12 enclosure rating for indoor protection in appropriate environments.
The ER12-40N3PB is part of the Eaton Bussmann series and is designed for seamless integration with Eaton electrical protection products. When planning a panel retrofit or new build, verify system voltage and current ratings, enclosure requirements, and compatibility with related Bussmann series non-fused disconnects to ensure a cohesive protection strategy and streamlined spare parts management.