Eaton ER12-40N3GMS Enclosed Rotary Disconnect Switch - NEMA 12
Part Number: ER12-40N3GMS
Quick Summary
ER12-40N3GMS enclosed rotary disconnect switch isolates electrical circuits in industrial control panels. For engineers and technicians, downtime and wiring complexity are top pains, and a reliable, non-fused solution reduces service time while simplifying maintenance. This unit is CE marked and designed for 600 V and 40 A, housed in a robust NEMA 12 enclosure for dusty, harsh environments. With a compact footprint and standard catalog availability, it fits existing panel designs while delivering dependable, code-compliant automation performance. In short, it supports safe, scalable control panel setups and helps streamline procurement in diverse industrial applications.
Product Information
Extended Description
ER12-40N3GMS Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, 600V, 40A, NEMA rating 12 - ER12-40N3GMS
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER12-40N3GMS
UPC
051712515726
Product Length/Depth
6 in
Product Height
10 in
Product Width
8 in
Product Weight
12 lb
Warranty
Not Applicable
Compliances
CE Marked
Certifications
Not Applicable
Amperage Rating
40A
NEMA rating
NEMA 12
Voltage rating
600 V
Special features
Non-fused
ER12-40N3GMS~40A GM ENCL. DISC. SIDE
ER12-40N3GMS~40A GM ENCL. DISC. SIDE
Eaton Specification Sheet - ER12-40N3GMS
Feature: Enclosed, non-fused rotary disconnect switch in a NEMA 12 enclosure. Business Impact: Enhances user safety and reliability by providing clear isolation without fused components, reducing arc-flash risk and downtime. Application: Ideal for control panels in dusty manufacturing environments and OEM equipment where quick, safe isolation is required. Feature: 40A, 600 V electrical rating. Business Impact: Supports common industrial loads with robust protection, enabling consistent performance across machinery and packaging lines. Application: Suitable for machine tools, conveyor systems, and automation panels requiring solid current handling and voltage protection. Feature: Compact dimensions (6 in depth, 8 in width, 10 in height) and 12 lb weight. Business Impact: Simplifies panel integration and retrofit projects, lowering installation time and enclosure footprint. Application: OEM equipment and retrofit projects with limited space. Feature: CE marked and NEMA 12 protection. Business Impact: Facilitates international deployment and regulatory compliance, reducing certification hurdles. Application: Global control systems and export-ready automation deployments. Feature: Documentation and support availability (spec sheets and catalogs). Business Impact: Accelerates procurement decisions, simplifies maintenance planning, and provides clear reference for service teams. Application: Engineering workflows that require verifiable specs and easy access to Eaton resources.
Get a Quick Quote for a Eaton ER12-40N3GMS
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 ER12-40N3GMS?
Enquire Now
FAQs
The ER12-40N3GMS fits a compact footprint with roughly 6 in depth, 8 in width, and 10 in height, weighing about 12 lb. It is designed for standard panel cutouts and can be integrated alongside Eaton Bussmann series protection components. Ensure enclosure clearance for wiring, and verify the NEMA 12 rating aligns with the environment and installation standards of the panel.
This device provides non-fused isolation rated at 40A and 600 V, within a NEMA 12 enclosure. Use it to safely disconnect power for maintenance or emergency shutdowns in equipment operating under these limits. Consider coordinating with downstream protective devices and ensuring clear labeling to reflect non-fused operation in your protection scheme.
Yes. The unit features a NEMA 12 enclosure, which offers protection against dust and certain fluids, making it appropriate for many dusty or harsh environments typical of manufacturing floors and packaging lines. For particularly harsh conditions, verify additional enclosure integrity and environmental ratings in your specific application.
The ER12-40N3GMS is CE marked, signifying conformity with applicable European health, safety, and environmental requirements. While other certifications are not listed in the data, CE marking facilitates regulatory acceptance in many markets and helps streamline cross-border deployments for automation projects.
Available downloads include the Eaton full-line catalog and a dedicated datasheet for ER12-40N3GMS, plus a catalog sheet for the enclosure configuration. These resources provide part numbers, dimensional data, ratings, and wiring guidance to support sourcing, ordering, and ongoing maintenance in your control panel projects.