Eaton ER4P-400N3PB Enclosed Rotary Disconnect Switch - NEMA 4P
Part Number: ER4P-400N3PB
Quick Summary
The Eaton ER4P-400N3PB Enclosed Rotary Disconnect Switch provides safe electrical isolation for industrial control panels. This design helps address maintenance challenges and arc-flash exposure by delivering a robust, non-fused disconnect that is easy to service. With a 600 V rating and 400 A capacity housed in a NEMA 4P enclosure, it meets the needs of harsh factory environments. CE marked for global compliance and featuring a pistol handle for secure operation, it supports reliable panel design and straightforward installation. For engineers balancing safety, uptime, and total cost of ownership, this device combines Eaton reliability with practical compatibility across standard panel chassis.
Product Information
Extended Description
ER4P-400N3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 400A, Black, NEMA rating 4P
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4P-400N3PB
UPC
051712420365
Product Length/Depth
12 in
Product Height
12.25 in
Product Width
7.5 in
Product Weight
11.24 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
400A
NEMA rating
NEMA 4P
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 - ER4P-400N3PB
Feature: Enclosed non-fused rotary disconnect with pistol handle ensures safe isolation and minimizes arc flash exposure → Business Impact: Improves worker safety and reduces downtime during maintenance, enabling faster service windows in production lines → Application: Ideal for industrial control panels and machine isolation in manufacturing environments. Feature: 600 V, 400 A electrical rating within a durable NEMA 4P enclosure → Business Impact: Supports reliable operation in wet, dusty, or harsh environments, lowering the risk of field failures → Application: Suitable for process lines, conveyors, and heavy equipment control enclosures. Feature: Compact, balanced footprint with 12 in length, 12.25 in height, and 7.5 in width → Business Impact: Easier integration into standard panel layouts and retrofit projects, saving cabinet space and installation time → Application: retrofit and new panel builds in automation cells. Feature: Non-fused configuration reduces spare parts inventory and simplifies maintenance → Business Impact: Lowers total cost of ownership and improves uptime by reducing component diversity → Application: Frequently serviced isolations in large-scale machine systems. Feature: CE marking and industry-standard ratings provide compliance confidence → Business Impact: Accelerates project approvals and supports global deployments → Application: Compliance-heavy environments in Europe and beyond; supports cross-border manufacturing operations.
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FAQs
Yes. The ER4P-400N3PB is designed for standard panel installations and retrofits, with a compact 12 in depth and a 12.25 in height by 7.5 in width footprint. Its non-fused, pistol-handle design simplifies servicing, while the NEMA 4P enclosure provides suitable protection for typical industrial environments. When retrofitting, verify mounting dimensions and clearance for safe operation and wiring access.
Key specs include a 600 V voltage rating and a 400 A amperage rating, protected by a NEMA 4P enclosure. The non-fused construction reduces spare parts needs, and the pistol-style handle enables secure operation. These ratings suit heavy equipment control and process lines, delivering reliable isolation with robust environmental protection suitable for manufacturing floors.
The ER4P-400N3PB excels in factory automation, machine safety isolation, conveyors, and large panel assemblies where reliable electrical isolation is required. Its enclosure and non-fused design support easy maintenance, minimized downtime during servicing, and compliance with CE standards, making it a strong choice for new builds or upgrades in heavy industries.
The switch carries CE marking, indicating conformity with applicable European standards. Its NEMA 4P rating provides weather and dust resistance for outdoor or constrained indoor environments. While other certifications may apply regionally, CE and NEMA 4P are the primary qualifications highlighted for this model, supporting global deployment in compliant facilities.
Maintenance is simplified by the non-fused design, which reduces replacement part requirements and downtime during servicing. The pistol handle allows quick, secure operation, and the overall rugged enclosure supports longer service intervals in harsh environments. Over time, this translates to lower total cost of ownership and improved uptime for automated lines and critical processes.