Eaton ER4P-40N3PB Enclosed Rotary Disconnect - NEMA 4P 600V
Part Number: ER4P-40N3PB
Quick Summary
The Eaton ER4P-40N3PB is an enclosed rotary disconnect switch designed for safe line isolation in electrical protection assemblies. Engineers often struggle with reliable de-energization in tight panels or dusty, harsh environments. This unit is CE marked and features a NEMA 4P-rated enclosure, supporting durable protection in demanding installations. As part of the Bussmann series, it provides non-fused isolation for 600 V systems at 40 A, helping to reduce downtime and simplify maintenance. The pistol-style handle speeds safe operation and minimizes operator fatigue in daily plant practice.
Product Information
Extended Description
ER4P-40N3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 40A, Black, NEMA rating 4P
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4P-40N3PB
UPC
051712487795
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
0.001 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
40A
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-40N3PB
Non-fused design reduces spare parts and maintenance complexity while delivering dependable isolation for medium-voltage circuits. This translates to lower total cost of ownership and faster downtime recovery in motor control centers and feeders. The pistol-style handle enables ergonomic, rapid operation during lockout/tagout procedures, improving safety and throughput in crowded panels or high-changeover environments. Enclosure is NEMA 4P-rated, delivering robust protection against dust, water ingress, and washdown conditions—perfect for outdoor equipment or harsh indoor environments. Rated for 40A at 600V, the switch supports common industrial loads without over-sizing, helping control panel designers meet space and thermal constraints. CE marking and Bussmann-series integration ensure compliance and streamlined procurement across EU and North American sites.
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FAQs
The ER4P-40N3PB is a non-fused, enclosed rotary disconnect switch rated for 40A at 600V with a NEMA 4P enclosure. It features a pistol-style handle for quick operation and is CE marked, reflecting European compliance. This combination supports reliable isolation in demanding industrial environments and aligns with Bussmann-series product families.
The pistol handle enables fast, ergonomic operation, while the enclosed, rugged housing protects against dust and moisture during LO/TO. The non-fused design reduces maintenance steps by eliminating fuse changes, and the 600V rating ensures appropriate protection for mid-voltage circuits. Together, these aspects promote safer, quicker maintenance windows and reduced exposure to energized parts.
Yes. The ER4P-40N3PB is positioned within the Eaton Bussmann series, ensuring compatibility with Bussmann protection products and standard panel components. While it is a non-fused disconnect, its design integrates with common Bussmann-series enclosures and accessories, supporting streamlined procurement and uniform engineering standards across systems.
This switch is ideal for control panels, motor feeders, conveyors, and outdoor equipment requiring reliable circuit isolation in harsh or washdown-prone environments. Its 40A/600V rating suits medium-load circuits, while the NEMA 4P enclosure provides durability in industrial facilities, outdoor installations, and environments with dust or moisture exposure.
Key technical references include the Eaton Bussmann catalog and the Eaton Specification Sheet for ER4P-40N3PB. The product ships with CE compliance documentation and the catalog entries outline installation, wiring guidance, and safety considerations. Accessing the official datasheet helps ensure correct mounting, wiring, and compliance with local electrical codes.