Eaton ER3R-800L3PR Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-800L3PR
Quick Summary
Eaton ER3R-800L3PR is an enclosed rotary disconnect switch used to safely isolate power in electrical distribution and machine control systems. This design helps prevent accidental energization during maintenance and reduces downtime by offering a secure pistol-handle operation and clear visual indication. Certified to CE Marking and rated for NEMA 3R enclosures, it withstands outdoor and harsh environments while delivering reliable isolation. For engineers and procurement teams, the combination of rugged construction, high-current capability, and regulatory compliance translates to safer installations, easier compliance, and lower total cost of ownership in high-demand industrial applications.
Product Information
Extended Description
ER3R-800L3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Fuse class L, Pistol handle, 600V, 800A, Red, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-800L3PR
UPC
051712416368
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
Fuse class L, Pistol handle
ER3R-800L3PR~ENC DISC800L NEMA3R RED
ER3R-800L3PR~ENC DISC800L NEMA3R RED
Eaton Specification Sheet - ER3R-800L3PR
Feature highlights a 600 V voltage rating with an 800 A current rating and a NEMA 3R enclosure. This capability translates to robust fault isolation and reliable performance in humid, outdoor, or otherwise challenging environments. It is well suited for service disconnects on outdoor panels, substations, and heavy equipment lines in manufacturing settings. Feature: Fuse-class L compatibility and pistol-handle operation. Business Impact: Reduces the risk of accidental energization during maintenance and enables safer, faster fuse handling. Application: Ideal for routine service disconnects in control panels where personnel safety is critical. Feature: CE Marking and Bussmann series integration. Business Impact: Aligns with international safety standards and simplifies cross-brand component sourcing. Application: New installations or retrofits in facilities requiring CE compliance. Feature: Pistol handle ergonomics and robust enclosure. Business Impact: Improves operator confidence and reduces fatigue during daily on/off operations. Application: High-use switch points on production lines and packaging systems. Feature: Heavy-duty construction with 19 lb weight. Business Impact: Indicates durability and longer service life, reducing replacement cycles. Application: Fixed-panel installations in demanding environments, including weather-exposed sites. Feature: 600 V / 800 A capability with NEMA 3R enclosure. Business Impact: Supports large motors and feeders with reliable isolation while meeting outdoor enclosure requirements. Application: Large-scale manufacturing, material handling, and outdoor substations.
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FAQs
When installing the ER3R-800L3PR, ensure proper panel suitability for a NEMA 3R enclosure and maintain required clearance for safe operation. Verify mounting compatibility with existing Bussmann series components, and confirm the pistol-handle orientation aligns with maintenance workflow. Plan for service access and lockout/tagout procedures to maximize safety during energization and de-energization events.
Key specs include a 600 V voltage rating and an 800 A current rating, with fuse-class L compatibility and CE Marking. These parameters determine the unit’s suitability for high-current feeders and large motors, ensuring secure isolation under fault conditions. The 3R enclosure supports outdoor or harsh environments, and the pistol handle facilitates safe, controlled operation during maintenance.
Yes. The ER3R-800L3PR is designed with a NEMA 3R enclosure, which provides protective sealing against falling rain, sleet, and corrosion, making it appropriate for outdoor panels and damp environments. This rating helps maintain performance and safety in harsh industrial locations while complying with typical electrical installation standards.
The unit is CE Marked, affirming compliance with applicable European safety and performance requirements. While other certifications like SIL or IP are not listed for this model, the CE marking combined with the NEMA 3R enclosure supports procurement for international and outdoor projects. This reduces risk during vendor selection and accelerates approval cycles in regulated environments.
The pistol-handle design and fuse-class L compatibility simplify maintenance tasks, reducing downtime during fuse changes and disconnections. The robust 600 V / 800 A rating supports reliable operation for high-demand lines, contributing to lower failure rates and longer asset life. Over the equipment lifecycle, this translates to predictable maintenance planning and a favorable return on investment from improved uptime.