Eaton ER3R-800N3PR Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-800N3PR
Quick Summary
ER3R-800N3PR is an enclosed rotary disconnect switch that provides safe electrical isolation for 600V, 800A industrial circuits. For maintenance teams facing downtime, space constraints, and complex switchgear layouts, a compact, non-fused design helps streamline installation and reduce risk. This unit carries CE marking and a NEMA 3R-rated enclosure, enabling reliable outdoor and indoor service in harsh environments while meeting regulatory expectations. By combining rugged protection with straightforward operation and Bussmann-series compatibility, it supports faster commissioning, simpler spare part management, and lower lifecycle costs.
Product Information
Extended Description
ER3R-800N3PR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Pistol handle, 600V, 800A, Red, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-800N3PR
UPC
051712420822
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-800N3PR
Enclosed, non-fused rotary disconnect with ergonomic pistol handle delivers fast, safe isolation, reducing arc-flash exposure and enabling quick operator actions during startup or maintenance. This design is ideal for main switchgear, service entrances, and motor control centers in manufacturing facilities, where uptime and safety are critical. The NEMA 3R enclosure and CE marking provide outdoor durability and regulatory compliance across diverse environments, from production floors to outdoor substations. With a 600 V, 800 A rating, this unit supports heavy loads and scalable configurations, enabling future plant expansion without replacing core protection. Bussmann-series compatibility ensures spare parts availability and standardization across multiple plants, simplifying procurement and cross-site maintenance. The rugged construction and compact form factor also reduce installation time and retrofit complexity in existing cabinets.
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FAQs
ER3R-800N3PR uses a NEMA 3R enclosure designed for both indoor and outdoor installations, providing weather-resistant protection for electrical disconnects. When planning installation, ensure adequate clearance for the pistol handle operation, verify mounting compatibility with standard switchgear cabinets, and accommodate the 800 A current path in the surrounding bus assemblies. Proper wiring and torque specifications should follow Eaton’s installation sheets to maintain safety and performance.
The device is rated for 800 A continuous current and 600 V nominal voltage, suitable for high-current isolation tasks in industrial environments. It is non-fused, which simplifies maintenance and partial system reconfiguration. When selecting this model, confirm system fault levels and coordination with upstream protective devices to ensure safe clearance during operation and servicing.
Yes, ER3R-800N3PR is suitable for service entrances, motor control centers, and other distribution points within industrial facilities. Its enclosed, non-fused design with a pistol handle enables fast isolation, while the NEMA 3R enclosure supports reliability in varied environments. Ensure compatibility with existing switchgear footprints and confirm that the enclosure type and cabling meet your facility’s layout and electrical codes.
This model is CE marked for compliance with applicable European standards, and it features a NEMA 3R-rated enclosure for robust indoor/outdoor protection. While not listed as SIL-rated in the provided data, the unit is designed to meet common electrical protection and safety requirements for industrial disconnects, and it aligns with Bussmann-series product standards for integration with Eaton’s protection solutions.
The non-fused design reduces routine fuse maintenance and replacements, while the pistol handle enables quick, ergonomic operation, lowering operator fatigue and downtime. The rugged enclosure minimizes weather-related wear and simplifies field servicing. Standardization with Eaton Bussmann-series components helps reduce spare-parts inventory and procurement complexity, improving lifecycle cost management and enabling faster project ROI for plant upgrades.