Eaton ER4X-100J3PB Enclosed Rotary Disconnect Switch - NEMA 4X
Part Number: ER4X-100J3PB
Quick Summary
The ER4X-100J3PB is an enclosed rotary disconnect switch designed for safe isolation in electrical distribution. Engineers often grapple with moisture, dust ingress, and space constraints when selecting enclosure-ready isolators. This model carries CE marking and a NEMA 4X enclosure rating, signaling compliance and protection in harsh environments. By combining rugged construction with a pistol-style handle and fuse-type J versatility, it helps reduce downtime and simplify installation in control panels. Designed for Bussmann series applications, it integrates smoothly with standard 600 V, 100 A circuits, delivering reliable, compliant isolation across industrial environments.
Product Information
Extended Description
ER4X-100J3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse type J, Pistol handle, 600V, 100A, Black, NEMA rating 4X
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4X-100J3PB
UPC
051712415781
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
100A
NEMA rating
NEMA 4X
Voltage rating
600 V
Special features
Fuse type J, Pistol handle
ER4X-100J3PB~ENC DISC100J NEMA4XSS BLK
ER4X-100J3PB~ENC DISC100J NEMA4XSS BLK
Eaton Specification Sheet - ER4X-100J3PB
Feature: Enclosed rotary disconnect design provides safe, mechanical isolation for energized circuits → Business Impact: Improves personnel safety and reduces arc flash exposure, enabling safer maintenance windows in busy production lines → Application: Control panels and motor control centers in manufacturing facilities. Feature: 600 V, 100 A electrical rating supports medium-duty to heavy-duty switching needs → Business Impact: Enables scalable protection for evolving plant loads, reducing the need for frequent upgrades → Application: Main or feeder disconnects in machine floors and distribution panels. Feature: NEMA 4X enclosure rating delivers weatherproof, corrosion-resistant protection → Business Impact: Extends service life in outdoor, washdown, or harsh industrial environments, lowering replacement costs → Application: Outdoor equipment enclosures, washdown zones, and outdoor MCC installations. Feature: Fuse type J with pistol handle provides quick, safe operation and fuse compatibility → Business Impact: Minimizes downtime during maintenance and enhances operator confidence during switch operations → Application: Routine isolation tasks in manufacturing lines and service disconnect points. Feature: CE compliance and Bussmann series lineage assure standardization and cross-compatibility with existing electrical protection schemes → Business Impact: Streamlines procurement, reduces integration risk, and supports regulatory audits → Application: European-grade control systems and global facilities requiring consistent protection upgrades.
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FAQs
To install the ER4X-100J3PB, mount the unit in a suitable enclosure rated for NEMA 4X, ensuring proper clearance for the pistol handle operation. Connect line and load conductors per the electrical diagram, verify the fuse type J compatibility, and secure the assembly to the panel frame. After wiring, perform a functional check with the disconnect in the open position to confirm safe isolation before energizing.
The ER4X-100J3PB provides a 600 V voltage rating and a 100 A current rating. It features a NEMA 4X enclosure for rugged environments and uses fuse type J. The unit is CE marked for compliance. These specs support reliable isolation for medium-duty to heavy-duty applications in industrial control panels and MCCs.
Yes. The NEMA 4X enclosure rating indicates weatherproof and corrosion-resistant protection suitable for outdoor installations and washdown areas. When used in conjunction with proper installation practices and compatible protection schemes, it maintains safe isolation under challenging environmental conditions typical of outdoor equipment and process plants.
This model carries CE marking and a NEMA 4X enclosure rating, signaling compliance with European and North American environmental and safety standards. While not explicitly listed as SIL or IP, the NEMA 4X and CE markings provide substantial assurance for many industrial applications requiring robust enclosure protection and regulatory alignment.
The ER4X-100J3PB offers durable construction with a pistol-style handle and fuse-type J compatibility, reducing downtime during maintenance and simplifying replacement. Its rugged enclosure minimizes ingress-related wear, lowering maintenance frequency. For ROI, the combination of safer operation, extended service life, and compatibility with Bussmann series protection contributes to lower total cost of ownership in mid-to-large industrial facilities.