Square D | MEFC836LSI | Circuit Breaker | 800A | 3-Pole | 600V

The Square D MEFC836LSI circuit breaker is a rugged, three-pole device engineered for dependable overload protection in 600V systems. With an 800A rating, this unit is designed to handle high-demand applications, delivering steady performance in maintenance, retrofit, and replacement projects.

• Amperage: 800A
• Poles: 3-Pole
• Voltage: 600V

Why the MEFC836LSI stands out

When your project requires an exact match to your existing installation, the MEFC836LSI offers a precise fit with the specified amperage, pole count, and voltage. This makes it a reliable choice for renewing protection in legacy panels or coordinating with a retrofit plan where spec alignment is critical. The part number MEFC836LSI isn’t just branding—it’s the most reliable reference for compatibility checks before you order.

Fit, compatibility, and practical guidance

Important compatibility notes: Confirm fit and ratings before ordering. Use the exact part number MEFC836LSI as your primary reference to ensure seamless replacement or retrofit. This approach minimizes the risk of mismatched trip curves or mounting interfaces and helps keep your electrical system aligned with its original design specifications.

Ideal scenarios and practical usage

Designed for environments that require robust three-phase protection, the MEFC836LSI is well-suited for maintenance cycles, system upgrades, or replacements where an 800A, 3-pole, 600V breaker is specified. It serves as a durable, high-capacity component within industrial or commercial panels that rely on precise, reliable overcurrent protection to keep critical equipment running smoothly.