Eaton ER1-400N3PR Enclosed Rotary Disconnect - NEMA 1
Part Number: ER1-400N3PR
Quick Summary
The Eaton ER1-400N3PR enclosed rotary disconnect switch isolates 600 V, 400 A circuits in industrial control panels. Many facilities struggle balancing reliable isolation with minimizing downtime and meeting safety and compliance requirements. CE marked compliance supports European safety standards across machinery, while the NEMA 1 enclosure suits general indoor installations. The non-fused, pistol-handle design simplifies operation and reduces arc exposure during maintenance. Designed for electrical protection and circuit control applications, it enables faster installations, predictable performance, and lower lifecycle costs for industrial automation projects. Its 600 V, 400 A rating and NEMA 1 enclosure enable flexible deployment across machine builds, service panels, and distributed control systems. Ideal for panel builders, system integrators, and OEMs. Backed by configuration details and service literature supports fast procurement.
Product Information
Extended Description
ER1-400N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 400A, Red, NEMA rating 1
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER1-400N3PR
UPC
051712416474
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
400A
NEMA rating
NEMA 1
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 - ER1-400N3PR
Feature: Non-fused, enclosed rotary disconnect switch. Business impact: Reduces fuse maintenance, minimizes spare parts inventory, and lowers lifecycle costs in panel builds. Application: Ideal for indoor control panels where reliable isolation is required. Feature: Pistol-style handle for safe manual operation. Business impact: Improves operator safety and speeds switching during maintenance, reducing downtime. Application: Field service and routine isolation tasks in manufacturing environments. Feature: 600 V, 400 A rating with NEMA 1 enclosure. Business impact: Supports demanding loads while protecting against dust and light splash in standard indoor environments. Application: Panel mounting in control cabinets across machine builders and OEMs. Feature: CE marking and non-fused design with clear documentation. Business impact: Facilitates compliance verification and fast commissioning, simplifying procurement and audit readiness. Application: Markets requiring CE conformity and straightforward integration. Feature: Quick installation and compatibility with Bussmann series catalogs. Business impact: Shortens installation timelines and improves spare-parts planning, boosting overall project velocity. Application: New panel builds and retrofits seeking reliable isolation solutions.
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FAQs
The ER1-400N3PR is designed to provide safe, reliable isolation for 600 V circuits up to 400 A inside industrial control panels. Its enclosed rotary disconnect switch configuration minimizes arc exposure during operation, supports non-fused isolation, and is ideal for panel builders and system integrators seeking a rugged main-disconnect solution for indoor environments.
The ER1-400N3PR carries CE marking, indicating compliance with European safety standards for machinery and electrical protection. While there are no SIL or IP specifications listed for this model in the provided data, CE certification ensures alignment with applicable European directives, facilitating cross-border deployments in compliant facilities.
The ER1-400N3PR is rated for 600 V and 400 A, with a NEMA 1 enclosure. It is a non-fused device, designed for indoor panel installations where reliable isolation is required. This combination supports robust protection for medium-duty industrial circuits in machine controls and power distribution blocks.
ER1-400N3PR is a non-fused disconnect switch, meaning the device itself does not include internal fuses. For circuits requiring fusing, engineers typically implement external fusing within the broader panel protection scheme and coordinate fusing with the disconnect device to ensure proper isolation without compromising startup and shutdown sequences.
Consider mounting accessibility for the pistol handle and ensuring sufficient clearance for safe operation. Use standard panel mounting practices for NEMA 1 indoor enclosures and verify that wiring manifests comply with 600 V, 400 A ratings. Refer to the Eaton datasheet for installation guidelines, torque specs, and recommended mounting hardware to ease procurement and commissioning.