General Electric | MB823 | Circuit Breaker | 400A | 3-Pole | 480V

Introducing the General Electric MB823 Circuit Breaker — a robust 3-pole protection device rated at 400A and designed for 480V systems. Built for maintenance, retrofit, and replacement projects, this breaker helps keep industrial power distribution safe, reliable, and ready for modern demands.

Why choose the MB823 for your next upgrade or service job? The part number MB823 is the most reliable reference for compatibility, ensuring you match the exact frame, trip characteristics, and mounting footprint required by GE panels and equipment. Always verify the fit and ratings before ordering to avoid mismatches in your panel configuration or downstream circuitry.

• Amperage: 400A — delivers strong overcurrent protection for high-load circuits while minimizing unnecessary trips.
• Poles: 3-Pole configuration — ideal for three-phase power distribution, commonly used in commercial and industrial environments.
• Voltage: 480V — suitable for medium- to high-voltage applications typical in manufacturing facilities, data centers, and heavy machinery layouts.
• Part number: MB823 — use this exact reference to ensure precise compatibility with GE panels and replacement scenarios.
• Applications: designed for maintenance, retrofits, and replacements where a direct MB823 match is required, enabling seamless upgrades without panel redesign.

Use cases and practical benefits:

• Upgrade aging protection in three-phase 480V circuits to improve reliability and fault response without reconfiguring your entire distribution setup.
• Retrofit projects benefit from a known, GE-validated form factor and trip profile, reducing integration risk during panel modernization.
• Replacement scenarios are streamlined when sourcing MB823, ensuring you preserve existing wiring, bus structures, and enclosure layouts.

What to consider before purchase:

• Confirm fit and ratings for your specific GE equipment and panel model to ensure seamless compatibility.
• Keep the MB823 reference handy as your primary compatibility check when sourcing spares, especially for older or multi-brand systems that rely on exact GE part numbers.