Eaton ER3R-25N6SB Enclosed Rotary Disconnect Switch - NEMA 3R
Part Number: ER3R-25N6SB
Quick Summary
The Eaton ER3R-25N6SB enclosed rotary disconnect switch provides a compact, non-fused isolation solution for industrial panels. It addresses maintenance challenges by delivering a clear, safe disconnect that minimizes arc flash risk during servicing. With CE marking, a 600 V rating, and a 25 A NEMA 3R enclosure, it combines regulatory compliance with rugged outdoor-ready performance. Designed for Eaton Bussmann series protection architectures, it offers fast installation, reliable procurement, and predictable downtime costs.
Product Information
Extended Description
ER3R-25N6SB Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Selector, 600V, 25A, Black, NEMA rating 3R
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER3R-25N6SB
UPC
051712414562
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
25A
NEMA rating
NEMA 3R
Voltage rating
600 V
Special features
Non-fused, Selector
ER3R-25N6SB~ENC DISC25NF NEMA 6P BLK
ER3R-25N6SB~ENC DISC25NF NEMA 6P BLK
Eaton Specification Sheet - ER3R-25N6SB
Non-fused, selector design keeps stock handling simple and reduces fuse inventory. The business impact is lower maintenance costs and quicker isolation during servicing. Application: ideal for control panels and localized machine isolations in manufacturing lines where quick, visible disconnects are essential. With a 600 V and 25 A rating, this switch supports common motor control and light-industrial circuits. Benefits include safe operation within standard electrical designs, reduced overcurrent risk, and compatibility with existing Eaton Bussmann protection components. The NEMA 3R enclosure enables outdoor and harsh-environment installation, delivering weather protection and safer outdoor enclosures for outdoor substations, warehouses, and equipment rooms. CE marking ensures regulatory compliance across EU markets, reducing procurement risk and streamlining audits. Its compact footprint and straightforward mounting simplify installation and future upgrades, freeing panel space and accelerating serviceability for ongoing production demands.
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FAQs
The ER3R-25N6SB is designed for typical control panels and enclosure cutouts used in industrial settings. It features a compact, non-fused rotary disconnect with a selector operation, enabling straightforward mounting and wiring within standard DIN rail or panel-mounted configurations. When integrating with Eaton Bussmann protection components, it simplifies wiring schematics, reduces inventory variability, and supports efficient fault isolation during commissioning and maintenance.
Key specs include a 25 A amperage rating and a 600 V voltage rating, suitable for common motor control circuits and light-industrial loads. The NEMA 3R enclosure offers weather resistance for outdoor or harsh environments. For reliability, ensure proper torque during handle operation, verify alignment with compatible fuses or protection devices in the protection family, and observe lockout/tagout procedures to maintain compliance and uptime.
Yes. The device is specified with a NEMA 3R enclosure, which provides rain and corrosion protection suitable for outdoor installations and harsh environments. CE marking confirms compliance with broad regulatory requirements. For outdoor use, ensure proper enclosure mounting, verify cable ingress protection per your site conditions, and follow routine inspections to maintain seal integrity and safe operation over time.
This Eaton switch carries CE Marking, indicating conformity with applicable European health, safety, and environmental protection directives. The 600 V/25 A rating aligns with common industrial standards, and the NEMA 3R enclosure defines its weather-resistant capabilities. Compliance considerations include ensuring integration with the broader protection system, proper documentation for audits, and adherence to lockout/tagout and maintenance procedures.
The non-fused design reduces spare parts inventory and fuse-related maintenance, lowering overall operating costs and downtime during servicing. The selector feature accelerates isolation tasks, improving maintenance throughput and reducing non-productive time. When paired with compatible Eaton protection components, it supports standardized installation practices, enhances safety, and provides predictable lifecycle costs for panel and machine isolation across multiple production lines.