Eaton ER12-40N6SB Enclosed Rotary Disconnect - NEMA 12
Part Number: ER12-40N6SB
Quick Summary
ER12-40N6SB enclosed rotary disconnect switch isolates circuits in electrical control panels. This compact, non-fused device helps prevent accidental energization and simplifies maintenance workflows. It carries CE marking, a NEMA 12 enclosure, and a 600 V, 40 A electrical rating to satisfy common industrial safety and performance standards. Designed for seamless integration with Eaton Bussmann protection products, it supports reliable protection and streamlined sourcing for electrical protection & circuit control applications, delivering predictable uptime and procurement efficiency for OEMs and service teams.
Product Information
Extended Description
ER12-40N6SB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Selector, 600V, 40A, Black, NEMA rating 12
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER12-40N6SB
UPC
051712414722
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, Selector
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER12-40N6SB
Feature: Enclosed, non-fused rotary disconnect switch provides a safe, isolated path for de-energizing equipment → Business Impact: Reduces the risk of accidental startup and simplifies compliance audits → Application: Control panels in manufacturing lines requiring reliable isolation. Feature: 600 V and 40 A electrical rating supports medium-load isolation with robust protection → Business Impact: Enables safe power-down sequences without overrating components → Application: Industrial distribution panels and automation cabinets. Feature: NEMA 12 enclosure delivers dust and drip resistance for indoor environments → Business Impact: Extends equipment life in factory floors and assembly areas → Application: Indoor electrical protection in harsh factory conditions. Feature: Compact footprint and lightweight design enable easy retrofit and simple field installation → Business Impact: Lowers installation costs and accelerates commissioning → Application: Modernizing legacy panels without major enclosure rewrites. Feature: CE marking and non-fused selector features provide regulatory readiness and user-controlled operation → Business Impact: Ensures compliance across markets and reduces downtime during maintenance → Application: Global manufacturing operations and service centers. Long-tail keywords integrated: enclosed rotary disconnect switch, NEMA 12 enclosure, 600 V disconnect, 40 A control switch, Eaton Bussmann series, non-fused selector, control panel isolation.
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FAQs
The ER12-40N6SB should be mounted within an indoor, CE-marked enclosure that supports a NEMA 12 rating. Ensure panel cutouts and mounting holes align with the catalog dimensions, and wire per the 40A, 600V ratings using proper torque on terminals. Verify compatibility with existing Eaton Bussmann protection components and perform a functional test after installation to confirm isolation functionality.
Key specs are 40A amperage rating, 600 V voltage rating, NEMA 12 enclosure, non-fused selector operation, and CE compliance. These parameters define its suitability for indoor control panel isolation and alignment with standard industrial safety practices in automation systems.
Yes. The NEMA 12 enclosure rating provides protection against dust and mild liquid splashes in indoor industrial settings, making it appropriate for manufacturing floors, machine rooms, and other indoor panels where cleanable, reliable isolation is required.
By delivering reliable isolation with a non-fused design and CE compliance, the ER12-40N6SB reduces maintenance downtime, minimizes accidental energization events, and streamlines spare parts sourcing within Eaton protection ecosystems, contributing to lower total cost of ownership in control panel deployments.
Yes. As part of the Eaton Bussmann series, the ER12-40N6SB is designed for compatibility with Bussmann fuses and protection devices, enabling cohesive protection schemes for electrical protection and circuit control applications across industrial facilities.