Exactly what we needed for a shutdown replacement. No surprises.
Plant · Shutdown
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| Part Number | MB512 |
| Amperes | 225 |
| Poles | 2 |
| Voltage | 240 |
| Product Type | Circuit Breaker |
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
General Electric MB512 circuit breaker delivers reliable, high-capacity protection for 240V systems. This 225A, 2-pole design is purpose-built for maintenance, retrofit, and replacement projects where exact GE compatibility is essential. When you need a seamless fit in GE panels and feeders, MB512 is engineered to keep electrical systems safe and compliant while delivering dependable performance in demanding environments.
This isn’t a generic replacement. The MB512 is designed to align precisely with GE panels and equipment, reducing installation guesswork and ensuring reliable grid protection. A two-pole configuration provides coordinated disconnection on both legs of a 240V circuit, improving safety and simplifying service work. The 225A rating is tuned for larger feeders found in commercial and light industrial settings, offering robust protection without unnecessary nuisance trips in high-demand applications.
Before ordering, verify fit and ratings against your panel’s documentation. The MB512 part number is the most reliable reference for compatibility, helping you avoid mismatches and ensure a smooth, compliant installation. If your system relies on GE-specific breakers, choosing MB512 means fewer surprises at hookup and faster project turnaround.
Note: Confirm the application matches a 240V, 2-pole configuration and that the 225A rating aligns with the protection needs of the circuit. This ensures optimal safety, performance, and longevity of your electrical infrastructure.
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General feedback we often hear from customers purchasing industrial electrical parts.
Exactly what we needed for a shutdown replacement. No surprises.
Plant · Shutdown
Good communication and clear updates while the order was processed.
Project · Coordination
Looks and feels like a proper industrial-grade part. Works as expected.
Service · Field install