Eaton ER4P-25N6SR Enclosed Rotary Disconnect - NEMA 4P
Part Number: ER4P-25N6SR
Quick Summary
Eaton ER4P-25N6SR is an enclosed rotary disconnect switch for quick isolation of electrical circuits in industrial control panels. Maintenance teams often struggle with safe, verifiable disconnection during servicing, making lockout and arc protection a priority. It is CE marked and rated for NEMA 4P service at 600 V, ensuring reliable performance in harsh environments. This non-fused selector switch delivers dependable electrical protection and straightforward installation, reducing downtime and enabling compliant, safer shutdowns across machines and panels. Its compatibility with standard enclosures and mounting patterns simplifies retrofit projects and reduces installation costs. Engineers value predictable performance through proven isolation and clear maintenance procedures.
Product Information
Extended Description
ER4P-25N6SR Eaton: Eaton Bussmann series enclosed rotary disconnect switch, Non-fused, Selector, 600V, 25A, Red, NEMA rating 4P
Product Name
Eaton Bussmann series enclosed rotary disconnect switch
Catalog Number
ER4P-25N6SR
UPC
051712414654
Product Length/Depth
12 in
Product Height
12.25 in
Product Width
7.5 in
Product Weight
11.24 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
25A
NEMA rating
NEMA 4P
Voltage rating
600 V
Special features
Non-fused, Selector
ER4P-25N6SR~ENCDISC25NF NEMA4XP 6PRED
ER4P-25N6SR~ENCDISC25NF NEMA4XP 6PRED
Eaton Specification Sheet - ER4P-25N6SR
The enclosed rotary disconnect switch design provides non-fused isolation with a straightforward selector operation for quick, safe de-energization during routine maintenance. This feature minimizes arc exposure and simplifies lockout/tagout, delivering safer maintenance windows and consistent outage durations. Its enclosure-ready form supports installation inside control panels, machine housings, or mounted enclosures across industrial facilities. Rated for 600 V and 25 A, the ER4P-25N6SR delivers robust protection for diverse circuits. The NEMA 4P rating ensures dependable performance in damp, dusty, and outdoor environments when installed in appropriate enclosures. This reliability translates to reduced field failures, fewer service calls, and greater uptime for critical production lines. CE marking signals compliance with international safety and performance standards, facilitating multi-market deployment. For integrators, this reduces engineering lead times and accelerates project approvals. The enclosure-friendly design also supports safe grouping of circuit protection components in centralized panels. Physical attributes—12 in depth, 12.25 in height, and 7.5 in width—enable straightforward retrofits. With a weight around 11.24 lb, technicians can handle installation without specialized equipment. Standard mounting patterns and compatible enclosures streamline installation across legacy systems and new builds. Non-fused operation and selector control minimize maintenance complexity while improving fault isolation clarity. The Eaton Bussmann series lineage provides reliable electrical protection components and documented performance. Engineers can specify ER4P-25N6SR with confidence for panels requiring modular, easily serviceable disconnecting solutions. In practice, this switch supports streamlined lockout/tagout workflows, faster preventive maintenance, and safer startups. Its combination of rating, protection, and enclosure compatibility reduces total cost of ownership. For machine builders and automation integrators, it is a dependable bridge between control logic and power distribution.
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FAQs
The ER4P-25N6SR is designed for straightforward installation inside standard electrical enclosures and panels. It features a compact footprint—12 in depth, 12.25 in height, and 7.5 in width—and accepts common mounting patterns used in control cabinets. This compatibility reduces retrofit risk, speeds up commissioning, and simplifies sourcing of compatible enclosures and lockout hardware.
With a 600 V voltage rating and 25 A current rating, it protects distribution circuits while handling typical motor and control loads in automation lines. The non-fused design minimizes heat generation and fault energy, while the NEMA 4P enclosure compatibility protects against dust, moisture, and corrosion in harsh environments, improving uptime and reducing energy losses.
Yes, the ER4P-25N6SR is suitable for outdoor or damp locations when installed in appropriate enclosures. The NEMA 4P rating and CE marking indicate resilience and regulatory compliance for diverse sites. For outdoor use, pair with weatherproof enclosures to maintain reliability and ensure safe isolation during maintenance.
The device is a non-fused selector switch that supports standard lockout/tagout practices. Safe disconnection is achieved through clear visual and mechanical isolation, reducing arc exposure. Maintenance personnel benefit from predictable operation and easier verification of de-energized states, contributing to safer startups and faster repair cycles in production environments.
When retrofitting, verify panel cutouts, mounting compatibility, and enclosure rating. Confirm the 12 in depth and 7.5 in width fit space constraints, and ensure the 600 V/25 A rating matches your circuit. Consider sourcing compatible Eaton Bussmann series components and include proper labeling, wiring guidance, and documentation to support regulatory and safety audits.