Siemens CED6N3R 125A 3P 600V Circuit Breaker, NEMA 3R | AmpState

Introducing the Siemens CED6N3R 125A 3P 600V Circuit Breaker, a rugged, dependable solution for protection in panelboards, load centers, and electrical distribution networks. Built to perform where reliability matters—indoors and outdoors—the CED6N3R keeps power flowing safely while simplifying retrofit work and maintenance planning.

Key specifications at a glance

• Amperage: 125 A
• Poles: 3-pole (3P) for 3-phase systems
• Voltage rating: 600 V
• Enclosure: NEMA 3R weatherproof, suitable for outdoor or exposed installations
• Application: Ideal for panelboards, load centers, and general electrical distribution
• Part number stability: A reliable choice when retrofit projects require keeping the same part number for maintenance planning
• Availability: Available from AmpState

Why this matters in real-world scenarios

• Retrofit and maintenance made simple: If you’re updating an older system or planning preventive maintenance, the CED6N3R’s fixed part number helps you avoid compatibility surprises during service windows.
• Outdoor-ready protection: The NEMA 3R rating means you can deploy this breaker in weather-exposed panels without compromising safety or performance.
• Reliable 3-phase protection: With 3P operation at 125 A, it delivers balanced protection across all legs in commercial or light-industrial environments.
• Seamless compatibility: If you’re unsure about fit, AmpState offers assistance to confirm compatibility and fit with your specific panel or distribution setup (message us).

Use cases and ideal applications

• Commercial and industrial panelboards needing dependable, code-compliant overcurrent protection for 3-phase loads
• Outdoor electrical distribution points, weatherproof disconnects, or service entrances where a weather-rated breaker is required
• Retrofits in existing installations where maintaining the exact part number reduces downtime and simplifies ordering

Why choose Siemens CED6N3R versus other breakers? The combination of 125 A protection, 3-pole configuration, 600 V rating, and a NEMA 3R enclosure delivers a robust solution designed for demanding environments. Unlike indoor-only breakers, this model stands up to weather and debris, helping you reduce maintenance calls and future-proof outdoor setups.

How to proceed

• Confirm compatibility with your panelboard or load center. If you’re unsure, contact AmpState for a quick fit confirmation—we’re standing by to help you match the exact part number to your equipment.
• Plan for routine testing and inspection to ensure the breaker trips reliably under fault conditions and remains securely mounted in its enclosure.