Eaton ER3R-800N3PB Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-800N3PB
Quick Summary
The Eaton ER3R-800N3PB is an enclosed rotary disconnect switch used for safe electrical isolation in switchgear and industrial control panels. Maintenance teams often contend with downtime and the risk of accidental energization during servicing, which this design helps reduce. It carries CE marking and a NEMA 3R enclosure rating, supporting reliable outdoor and rugged indoor installations, even in dusty or wet environments. As part of the Bussmann series, it is a non-fused solution with a pistol-style handle, enabling quick, safe isolation while reducing procurement and maintenance costs. Designed for 600 V systems and up to 800 A, it aligns with standard switchgear practices and simplifies emergency de-energization procedures.
Product Information
Extended Description
ER3R-800N3PB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 800A, Black, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-800N3PB
UPC
051712420815
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
19 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
800A
NEMA rating
NEMA 3R
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 - ER3R-800N3PB
Feature: Enclosed rotary disconnect switch with non-fused design. Benefit: Reduces maintenance complexity and stock of spare fuses while providing reliable isolation. Application: Suitable for switchgear and industrial control panels in both new builds and retrofits. The business impact is clearer uptime and safer lockout/tagout procedures. Feature: 800 A amperage rating at 600 V. Benefit: Supports heavy feeders and large motor loads with a compact footprint, enabling streamlined cabinet design and wiring. Application: Main feeders in production lines and processing equipment. Feature: NEMA 3R enclosure. Benefit: Weather-resistant protection for outdoor and semi-outdoor installations, reducing ingress and corrosion risk. Application: Outdoor motor control centers and field enclosures. Feature: CE compliance and Bussmann series lineage. Benefit: Global applicability and standardized performance, aiding regulatory adherence and cross-border procurement. Application: International facilities and multi-site deployments. Feature: Non-fused operation with pistol handle. Benefit: Faster, safer manual disconnection with ergonomic handling, lowering maintenance time and operator fatigue. Application: routine maintenance, emergency isolation, and routine line checks. Feature: Lightweight 19 lb construction (verified in spec). Benefit: Easier handling during installation and servicing, reducing shipment and labor costs. Application: Field installations where technician efficiency matters. Feature: 600 V rating and 800 A capacity. Benefit: Clear alignment with industry norms for medium-voltage switchgear, supporting correct protective device coordination. Application: System design where precise current carrying capability is required. Feature: CE marking and NEMA 3R rating. Benefit: Regulatory confidence and robust outdoor performance, enabling compliance-driven project acceptance. Application: Outdoor substations, warehouse automation, and production facilities.
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FAQs
For outdoor or rugged indoor installations, ensure a NEMA 3R enclosure is used and that mounting matches the panel cutout. Verify 600 V system compatibility and that the device is securely anchored to minimize vibration. Use proper lockout/tagout procedures and ensure the pistol-style handle is accessible for routine isolation during maintenance.
The 800 A rating supports heavy feeder loads and large motor circuits, while the 600 V rating defines the maximum system voltage the switch can safely interrupt. When designing the protection scheme, coordinate with appropriate upstream protective devices, select conductors and terminations rated for 600 V, and plan for appropriate clearance and insulation in the control panel.
Yes. The NEMA 3R enclosure rating provides weather and corrosion resistance suitable for outdoor and semi-exposed installations, while CE marking indicates compliance with essential European safety standards. This combination makes it viable for industrial control panels in challenging environments without sacrificing safety or reliability.
The unit is CE marked and features a NEMA 3R enclosure, designating it for outdoor and rugged indoor use. It is a Bussmann series non-fused rotary disconnect, which aligns with common industrial safety practices and simplified maintenance workflows, reducing the need for extra fusing components in many applications.
A non-fused disconnect reduces spare parts inventory and simplifies procurement, lowering maintenance overhead. The pistol-handle design accelerates safe engagement/disengagement, decreasing downtime during servicing. Overall, you gain faster maintenance cycles, safer lockout/tagout processes, and predictable lifecycle costs for medium-voltage switchgear.