Eaton ER4-100N3PB Enclosed Rotary Disconnect - NEMA 4
Part Number: ER4-100N3PB
Quick Summary
The Eaton Bussmann series enclosed rotary disconnect switch ER4-100N3PB provides safe, field-serviceable isolation for electrical panels and machinery. Operators struggle with non-fused designs that offer limited protection and complicate lockout/tagout during maintenance. This unit is CE marked, supports a NEMA 4 enclosure rating, and handles up to 600 V at 100 A for robust industrial control. Engineered for easy integration into control architectures, it delivers safer isolation, reduced downtime, and predictable maintenance costs.
Product Information
Extended Description
ER4-100N3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 100A, Black, NEMA rating 4 - ER4-100N3PB
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4-100N3PB
UPC
051712488372
Product Length/Depth
6 in
Product Height
12 in
Product Width
10 in
Product Weight
12 lb
Warranty
Not Applicable
Compliances
CE Marked
Certifications
Not Applicable
Amperage Rating
100A
NEMA rating
NEMA 4
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 - ER4-100N3PB
Feature: Non-fused design with a pistol handle reduces fuse management steps and accelerates fault isolation. Business Impact: Faster reset and safer operations lead to less downtime and improved personnel safety during servicing. Application: Ideal for panel isolation in motor control centers and process lines where quick, reliable shutdown is needed. Feature: Enclosed NEMA 4 construction provides weather and washdown resistance. Business Impact: Enhanced reliability in dusty, wet, or outdoor environments minimizes corrosion risk and service calls. Application: Suitable for outdoor equipment housings and harsh production floors. Feature: 600 V and 100 A electrical rating ensures robust performance for common industrial circuits. Business Impact: Supports high-current loads and compliant isolation without undersizing equipment. Application: Used in MCCs, distribution panels, and machinery control circuits. Feature: Compact enclosure footprint (6 in depth × 10 in width × 12 in height) with a 12 lb weight. Business Impact: Easier installation, denser panel layouts, and simplified retrofits. Application: Fits standard electrical enclosures where space is a constraint. Feature: CE Marked with Bussmann series lineage guarantees international compliance and traceability. Business Impact: Reduces regulatory risk and accelerates global deployments. Application: Global manufacturing sites and multi-region installations requiring certified components.
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FAQs
ER4-100N3PB is designed for use with standard electrical control panels and MCCs that require a non-fused isolation switch. Its 600 V, 100 A rating makes it suitable for mid- to high-current circuits, while the NEMA 4 enclosure supports harsh environments. Ensure the enclosure dimensions accommodate a 6 in depth, 10 in width, and 12 in height footprint and that mounting provisions match your panel design.
Key specs include a 600 V voltage rating and a 100 A amperage rating, along with a NEMA 4 enclosure. The device is non-fused and features a pistol handle for ergonomic operation. These factors enable safe isolation for medium-duty industrial circuits, reduce fuse-related maintenance, and support reliable lockout/tagout procedures during servicing.
Yes. The NEMA 4 enclosure rating indicates protection against dust and water ingress, making it appropriate for outdoor enclosures, wash-down areas, and harsh production floors. CE marking further supports compliance in international installations. Verify mounting clearance and enclosure compatibility with your specific enclosure system before installation.
The ER4-100N3PB is CE Marked, reflecting compliance with European safety and performance standards. While catalog data lists CE marking, it is intended to reassure international deployments where regulatory alignment is required. The NEMA 4 rating additionally confirms enclosure protection suitable for challenging environments, which matters for safety and reliability in industrial facilities.
The non-fused design reduces component complexity and downtime during isolation procedures, while the pistol handle enables quick, ergonomic operation. The enclosure’s rugged build minimizes weather-related failures, lowering service frequency. Together, these factors translate to faster maintenance cycles, improved worker safety, and a lower total cost of ownership across the asset lifecycle.