Eaton ER12-25N3PB Enclosed Rotary Disconnect - NEMA 12
Part Number: ER12-25N3PB
Quick Summary
The Eaton ER12-25N3PB is an enclosed rotary disconnect switch designed to safely isolate electrical circuits in industrial panels. For maintenance teams, limited access to control cabinets and the risk of arc flash are common pain points that slow service and increase safety concerns. This device is CE marked and built for a NEMA 12 enclosure, with a 600 V, 25 A rating to protect equipment and personnel in factory environments. Designed for seamless integration into Eaton Bussmann series solutions, it supports safe, fast installations while delivering regulatory compliance and reliable operation across typical panel architectures.
Product Information
Extended Description
ER12-25N3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 25A, Black, NEMA rating 12
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER12-25N3PB
UPC
051712487689
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
25A
NEMA rating
NEMA 12
Voltage rating
600 V
Special features
Non-fused, Pistol handle
ER12-25N3PB~ENCLOSED DISCONNECTS
ER12-25N3PB~ENCLOSED DISCONNECTS
Eaton Specification Sheet - ER12-25N3PB
Feature → Business Impact → Application: The ER12-25N3PB is an enclosed rotary disconnect switch that provides a clear, safe means of isolating circuits. This translates to reduced arc-flash exposure for technicians and fewer unplanned stoppages, particularly during changeovers in machine cells and control panels. Application: Suitable for indoor industrial control panels in manufacturing plants where quick, reliable isolation is required. Feature → Business Impact → Application: Non-fused operation coupled with a pistol-style handle simplifies maintenance routines and minimizes spare-fuse inventory, driving lower lifecycle costs and faster service calls. Application: Ideal for serviceability in dynamic line setups and modular machine designs. Feature → Business Impact → Application: 600 V, 25 A electrical rating ensures compatibility with common control circuits and motor load centers, reducing the need for aftermarket adapters. Application: Used in machine tools, conveyor drives, and automation panels requiring robust overcurrent protection without fuses. Feature → Business Impact → Application: NEMA 12 enclosure rating provides dust and light splash protection, improving uptime in standard factory environments. Application: Indoor production floors and electrical rooms with moderate environmental exposure. Feature → Business Impact → Application: CE Marked compliance supports regulatory alignment and market access across regions. Application: Panels deployed for European and other CE-regulated projects. Feature → Business Impact → Application: Compact form factor and panel-ready design enable straightforward retrofits and quick integrations with existing Bussmann series components. Application: Retrofit projects in control cabinets and new builds alike, with reduced commissioning time.
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FAQs
Installation should follow the panel manufacturer's guidelines for enclosed disconnects. Mount the unit using standard panel mounting provisions, connect line and load conductors to the appropriate terminals, ensure the pistol handle aligns with the operating position, and verify that the enclosure remains sealed to maintain NEMA 12 protection. Always de-energize the system and follow lockout-tagout procedures before work.
Key specs to confirm are a 600 V voltage rating and a 25 A current rating, ensuring the disconnect matches the controlled load and supply. It is non-fused, which affects how protection is coordinated with upstream devices. Ensure CE compliance for regional regulations and that the installation is within a NEMA 12 enclosure to protect against dust and minor moisture.
Yes, the ER12-25N3PB is well-suited for indoor industrial environments like robotic cells and machine tools due to its robust NEMA 12 enclosure, non-fused design, and pistol handle for quick operation. It provides safe isolation without the complexity of fuse handling, supporting rapid changeovers and consistent control panel safety in automation staircases and tool stations.
The ER12-25N3PB carries CE marking, indicating conformity with applicable European standards. This product also aligns with NEMA 12 enclosure requirements and a 600 V, 25 A rating for standard industrial control panel use. When selecting for global projects, verify regional electrical codes and ensure compatibility with any site-specific safety programs.
Non-fused disconnects simplify inventory and reduce spare parts costs since fewer fuse types are required. Faster maintenance and safer, more predictable operation can lower downtime and incident-related costs. The pistol handle improves ergonomic operation, which translates to reduced time for routine isolation and test procedures in daily production and changeover cycles.