Eaton Cutler-Hammer BJ3125 125A 3P 240V Circuit Breaker, Plug-On | AmpState

The Eaton Cutler-Hammer BJ3125 is a purpose-built circuit breaker you can trust for reliable protection in panelboards, load centers, and electrical distribution networks. With a 125 A rating and a robust 3-pole, 240 V design, this plug-on breaker is ready to handle the demands of everyday electrical work while keeping your panels organized and up to code.

• Amperage: 125 A
• Poles: 3
• Voltage: 240 V
• Type: Plug-On Circuit Breaker
• Manufacturer: Eaton Cutler-Hammer
• Part Number: BJ3125
• Applications: Panelboards, Load Centers, Electrical Distribution

Why this BJ3125 stands out for professionals

• Plug-On convenience: Quick, secure installation that simplifies service calls and reduces downtime during panel maintenance or retrofits.
• Consistent part-number strategy: Ideal for retrofit work and maintenance planning when the exact part number must remain constant, helping you avoid mismatches and delays.
• Trusted protection: Designed to reliably interrupt current and protect circuits in 240 V distribution systems, ensuring safety and continuity for commercial and industrial applications.
• Versatile installation context: Suitable for a range of installation environments—panelboards, main or sub-load centers, and other electrical distribution configurations.
• AmpState availability: Easily sourced through AmpState, with support to confirm fit and compatibility when your project requirements demand precision.

Practical use cases you might encounter

• Retrofit projects where the existing panel relies on a proven BJ3125 model, keeping wiring layouts and mounting footprints intact.
• Maintenance planning for scheduled service windows, ensuring a consistent, serviceable part that minimizes panel downtime.
• New or upgrade installations in commercial spaces that require dependable 3-pole protection at 125 A for 240 V circuits.

If you’re unsure about compatibility or specific fit, we’re here to help. Message us to confirm that the BJ3125 matches your panelboard or load center configuration and to ensure a seamless replacement process.