Eaton ER3R-63N6SB Enclosed Rotary Disconnect - NEMA 3R
Part Number: ER3R-63N6SB
Quick Summary
Eaton ER3R-63N6SB is an enclosed rotary disconnect switch used for safe electrical isolation in switchgear and panel assemblies. Maintenance teams struggle with selecting non-fused devices that reliably meet enclosure and weather protection requirements while minimizing downtime. This model carries CE marking for European safety standards and a NEMA 3R enclosure rating that stands up to outdoor and harsh indoor environments. Its 63 A, 600 V rating supports common industrial circuits, delivering dependable isolation with a compact form factor for modern control panels. The combination of non-fused operation and robust enclosure helps streamline maintenance, improve safety, and enable consistent regulatory compliance across global installations.
Product Information
Extended Description
ER3R-63N6SB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Selector, 600V, 63A, Black, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-63N6SB
UPC
051712414807
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
63A
NEMA rating
NEMA 3R
Voltage rating
600 V
Special features
Non-fused, Selector
Bussmann series complete full line catalog no. 1007
Bussmann series complete full line catalog no. 1007
Eaton Specification Sheet - ER3R-63N6SB
Feature → Business Impact → Application: Non-fused, selector operation simplifies wiring, reduces spare parts, and lowers maintenance overhead, enabling faster lockdowns during safety procedures in industrial control panels. This translates to shorter downtime and improved overall equipment effectiveness (OEE) for line startups and routine lockout/tagout cycles. Feature → 63 A / 600 V electrical rating provides clear electrical compatibility for mid-range motor control centers and feeder circuits, reducing the risk of overrating components and improving system reliability in daily operation. Feature → NEMA 3R enclosure rating delivers rain and corrosion resistance suitable for outdoor switchgear installations and exposed indoor environments, improving uptime in harsh conditions and simplifying compliance in outdoor facilities. Feature → CE marked compliance confirms adherence to European safety standards, supporting cross-border deployments and supplier audits, while ensuring consistent documentation for procurement. Feature → Enclosed rotary disconnect format delivers safe isolation with compact form factor, improving installation flexibility and minimizing panel footprint in space-constrained control rooms. This combination supports safer lockout/tagout, regulatory compliance, and efficient maintenance workflows while enabling scalable integration into existing automation architectures.
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FAQs
Plan standard vertical mounting with adequate internal clearance to accommodate the non-fused selector mechanism and wiring. Ensure the enclosure supports a NEMA 3R rating for outdoor or harsh indoor environments and follow applicable lockout/tagout practices during installation. Verify panel compatibility with a compact form factor and 600 V rating to avoid overloading conductors.
Yes. The NEMA 3R enclosure rating provides weather resistance for outdoor and semi-exposed installations, helping maintain isolation integrity in varying conditions. It is designed for safe operation in outdoor switchgear and weather-prone indoor spaces while maintaining compliance with CE standards.
The 63A amperage rating defines the maximum continuous current the switch can safely interrupt or carry in normal operation, while the 600V voltage rating indicates the maximum voltage the contacts and insulation can withstand. Use in mid-range motor control and feeder circuits within these limits to ensure safe isolation and reliable switching.
The ER3R-63N6SB carries CE marking, reflecting conformity with European safety requirements. It also features a NEMA 3R enclosure rating for rugged, weather-resistant performance. While not listed here, confirm any regional electrical codes and procurement standards during sourcing to ensure full audit compliance.
Non-fused switches reduce component counts and spare parts needs, lowering maintenance costs and downtime during safety procedures. The selector mechanism provides straightforward isolation, which speeds routine LOTO tasks and improves reliability in panel maintenance. Over time, this can shorten downtime windows and improve return on investment for mid-size to large-scale control systems.