Eaton ER3R-100CF2PB Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-100CF2PB
Quick Summary
The Eaton ER3R-100CF2PB Enclosed Rotary Disconnect provides safe isolation for electrical panels and motor control centers. In compact installations, manual switching can expose personnel to arc flash and downtime, so a rugged, pistol-handle design with secure locking helps mitigate risk. CE Marked and NEMA 3R rated for outdoor or harsh indoor environments, it supports 600 V, 100 A in a two-pole configuration, delivering reliable protection across power distribution and MCCs. Designed for electrical protection and circuit control applications, it delivers durable isolation with CE compliance while enabling faster maintenance cycles. This makes it a practical choice for panel builders, machine integrators, and service technicians seeking consistent, code-compliant performance.
Product Information
Extended Description
ER3R-100CF2PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse type CF, Pistol handle, 600V, 100A, Two-pole, Black, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-100CF2PB
UPC
051712748568
Product Length/Depth
11.8 in
Product Height
10.8 in
Product Width
9.84 in
Product Weight
6 lb
Compliances
CE Marked
Amperage Rating
100A
NEMA rating
NEMA 3R
Voltage rating
600 V
Special features
Fuse type CF, Pistol handle
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER3R-100CF2PB
Feature: Fuse-type CF enclosed design → Business Impact: Contains fault energy and arc exposure while allowing rapid fuse replacement, reducing downtime and maintenance costs. Application: Ideal for distribution panels and MCCs in manufacturing environments. Feature: Pistol handle with secure locking → Business Impact: Improves operator safety and lockout integrity, preventing accidental re-energization during servicing. Application: Suitable for routine maintenance on switchgear and control panels in industrial facilities. Feature: 600 V, 100 A two-pole, NEMA 3R rating → Business Impact: Delivers robust protection for outdoor and damp indoor locations with reliable power handling. Application: Fits standard industrial electrical protection and circuit control applications across MCCs and service entrances. Feature: Fuse-type CF compatibility → Business Impact: Aligns with Bussmann series protective devices to simplify sizing and spare-part inventories, reducing material costs. Application: Commonly paired with CF fuses in motor starter assemblies and feeder circuits. Feature: CE Marked compliance → Business Impact: Ensures regulatory conformity and market access across Europe, reducing risk of non-conformance. Application: Useful for global projects requiring formal safety certifications in electrical installations.Feature: Practical installation and compatibility → Business Impact: Two-pole design and rugged enclosure streamline mounting in standard electrical enclosures, minimizing retrofits. Application: Ideal for panel builders integrating into existing electrical protection and control systems.
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FAQs
The ER3R-100CF2PB is an enclosed two-pole rotary disconnect switch rated for 600 V and 100 A, with a NEMA 3R enclosure. It is ideal for electrical protection in panels, switchgear, and motor control centers (MCCs), including outdoor or challenging indoor environments where weather resistance and reliable isolation are required.
Install requires securing the enclosure to a suitable mounting surface, connecting line and load conductors to the two poles, and using the pistol handle to operate the switch. Verify 600 V insulation, ensure proper lockout/tagout procedures, and confirm CE marking compliance. Refer to the Eaton datasheet for step-by-step wiring diagrams and torque specifications.
This model is CE Marked and features a NEMA 3R enclosure rating, suitable for outdoor and damp indoor environments. It is designed for electrical protection and circuit control applications, providing certified safety and reliable isolation in industrial facilities.
Yes. The product uses fuse type CF and is aligned with Bussmann series protection practices. When configuring, match the protective device rating with the 100 A amperage and ensure correct fuse links are used within the enclosure to maintain proper protection and safety margins.
The pistol-handle design and secure locking minimize arc-flash exposure during servicing, while the robust CF enclosure reduces fault energy and wear. The 600 V/100 A two-pole setup supports common industrial feeders, potentially lowering downtime and maintenance costs through reliable performance and easier field replacements.