Eaton ER3R-40N3PB Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-40N3PB
Quick Summary
ER3R-40N3PB is an enclosed rotary disconnect switch that safely isolates circuits in electrical panels. Facility engineers often struggle with reliable, safe isolation in compact spaces or outdoor enclosures. CE Marked compliance and a NEMA 3R enclosure rating ensure environments—from Europe to harsh outdoor sites—meet safety standards. With 600 V and 40 A ratings plus a pistol-style handle, it reduces wiring complexity and downtime, boosting uptime. Designed for compatibility with standard enclosures and wiring practices, it simplifies stocking and procurement for maintenance teams. This combination helps panel builders meet electrical protection and control objectives while accelerating project timelines. It integrates smoothly with Eaton Bussmann catalogs, supporting quicker procurement and consistent performance across projects worldwide.
Product Information
Extended Description
ER3R-40N3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 40A, Black, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-40N3PB
UPC
051712487764
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
40A
NEMA rating
NEMA 3R
Voltage rating
600 V
Special features
Non-fused, Pistol handle
ER3R-40N3PB~ENCLOSED DISCONNECTS
ER3R-40N3PB~ENCLOSED DISCONNECTS
Eaton Specification Sheet - ER3R-40N3PB
Feature Non-fused design → Business Impact Reduces complexity of fuse management and enhances safety by eliminating unnecessary fusible links; Application Ideal for control panels and motor starter circuits in industrial automation environments. Feature Pistol-style handle operation → Business Impact Enables quick, ergonomic manual isolation reducing operator exposure and switching time; Application Suitable for high-cycle machine lines and maintenance windows. Feature 600 V, 40 A rating → Business Impact Supports typical industrial loads with reliable protection and clear overload margins; Application Used in motor control circuits and equipment panels. Feature NEMA 3R enclosure compatibility → Business Impact Provides outdoor and weather-resistant protection, improving uptime in harsh environments; Application Outdoor enclosures, portable equipment setups, and rugged installations. Feature CE Marked compliance → Business Impact Ensures regulatory alignment for European markets and cross-border projects; Application Global manufacturing and international panel builds. Feature Compact, standard-mount design → Business Impact Streamlines installation and reduces cabinet footprint, lowering installation costs; Application Panel upgrades and retrofit projects for space-constrained facilities. This combination helps panel builders meet electrical protection and control objectives while accelerating project timelines. It integrates smoothly with standard enclosure practices and catalog compatibility for consistent performance across facilities.
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FAQs
For installation, ensure mounting is within a standard enclosure with adequate clearance for the pistol-style handle. Verify the 600 V, 40 A rating matches your circuit requirements and that the enclosure provides NEMA 3R weather protection where outdoor use is anticipated. Use proper wiring practices and comply with CE Marked guidelines for regional electrical compliance. Confirm the unit is non-fused to avoid additional fuse blocks on the control circuit.
The ER3R-40N3PB is rated for 600 V and 40 A, with a non-fused design suitable for standard industrial loads. It features a NEMA 3R enclosure rating for outdoor or harsh environments and a pistol-style handle for quick manual operation. The product is CE Marked, aligning with European safety standards, and designed to integrate with Eaton Bussmann catalogs for consistent performance and supply chain efficiency.
This enclosed rotary disconnect is ideal for industrial automation panels, machine control cabinets, and outdoor equipment enclosures where safe isolation and quick operator intervention are needed. It supports typical control circuits and motor-start applications, offering reliable protection in rugged environments while simplifying maintenance through a standard, non-fused design.
The ER3R-40N3PB carries CE Marked compliance and a NEMA 3R enclosure rating, underscoring suitability for European markets and exterior installations. While SIL or IP ratings aren’t specified for this model, the CE certification and 3R enclosure provide meaningful regulatory assurance for safety, reliability, and environmental protection in many industrial applications.
Adopting the ER3R-40N3PB can reduce maintenance overhead by eliminating fuse management and simplifying isolation tasks with a pistol-style handle. Its non-fused design minimizes spare parts and diagnostic complexity, while CE compliance enhances cross-border project viability. Overall, you gain uptime, easier procurement from Eaton Bussmann catalogs, and faster commissioning for panel builds.