Eaton ER1-1200N3PR Enclosed Rotary Disconnect - NEMA 1
Part Number: ER1-1200N3PR
Quick Summary
Eaton ER1-1200N3PR enclosed rotary disconnect switch is designed to safely isolate power in indoor industrial control panels and switchgear. In demanding environments, engineers often struggle with balancing safety, reliability, and maintenance accessibility while managing high-current systems. This unit provides a NEMA 1 enclosure with 600 V and 1200 A ratings, featuring non-fused operation and a pistol-style handle for fast, secure actuation. For panel builders and OEMs, its rugged construction and straightforward installation translate into reduced commissioning risk and easier spare-parts planning. As part of the Bussmann series, it integrates smoothly with standard protection devices and switchgear, supporting efficient designs and predictable uptime.
Product Information
Extended Description
ER1-1200N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 1200A, Red, NEMA rating 1
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER1-1200N3PR
UPC
051712420921
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
21 lb
Warranty
Not Applicable
Compliances
Not Applicable
Amperage Rating
1200A
NEMA rating
NEMA 1
Voltage rating
600 V
Special features
Non-fused, Pistol handle
Used with
Used with all switches
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER1-1200N3PR
Feature: Enclosed rotary disconnect with non-fused design and pistol handle. Business Impact: Improves safety by delivering reliable power isolation and rapid actuation in confined panel spaces. Application: Ideal for indoor control panels and switchgear in manufacturing facilities. Feature: 600 V, 1200 A electrical rating. Business Impact: Enables safe isolation of high-current feeders with fewer devices, reducing installation time and total cost of ownership. Application: Large motor control centers and feeder disconnects in production lines. Feature: NEMA 1 enclosure. Business Impact: Provides indoor Dust protection and incidental contact safety, extending component life and lowering maintenance frequency. Application: Indoor panels and switchgear assemblies in factory settings. Feature: Compatibility with standard switches and Bussmann series protection. Business Impact: Simplifies procurement and system integration, minimizing engineering risk and parts stock complexity. Application: OEM panel builds and retrofit projects across industries. Feature: Pistol handle ergonomics. Business Impact: Enhances operator safety and reduces cycle time during lockout/tagout and routine operation. Application: Maintenance and commissioning tasks in high-current environments.
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FAQs
ER1-1200N3PR is designed for indoor panel mounting with a standard enclosure footprint. Ensure proper clearance for the pistol handle, follow lockout/tagout procedures, and wire per 600 V systems. Verify compatibility with existing switchgear and Bussmann protection devices to maintain safe, compliant operation.
This unit is rated for 600 V and 1200 A, non-fused, with a NEMA 1 enclosure. It is intended for indoor use where dust protection and basic ingress protection are sufficient, and where non-fused isolation is acceptable for the application.
Yes. The switch is designed to work with standard Bussmann series protection devices and common switchgear architectures, simplifying integration, stocking, and maintenance while ensuring cohesive safety and protection across the panel.
It is commonly employed in indoor motor control centers, control panels, and switchgear assemblies in manufacturing, process, and facility environments where high current isolation is required and weatherproof protection is not a primary concern.
Perform routine visual inspections for enclosure integrity and mechanical wear, and verify actuator function during maintenance windows. Since it is non-fused, ensure stock and replacement strategies cover components within the Bussmann protection ecosystem to minimize downtime.