Square D | MHL368001021 | Circuit Breaker | 800A | 3-Pole | 600V

Meet the Square D MHL368001021 circuit breaker — a rugged, high‑current 3‑pole unit designed for demanding 600V three‑phase systems. With an 800A rating, this breaker delivers reliable protection for large feeders, motors, and critical industrial loads, making it ideal for maintenance, retrofit, and replacement projects where exact specifications matter.

• Amperage: 800A
• Poles: 3‑Pole
• Voltage rating: 600V

Why this model stands out in the field:

• Designed for high‑current protection in demanding environments, helping prevent damage from overloads and short circuits in three‑phase systems.
• Genuine Square D build with dependable performance characteristics, ensuring consistent trip behavior across installations.
• Targeted for retrofit and replacement scenarios where the MHL368001021 part number is the exact fit your panel requires.
• Rugged construction that holds up under industrial conditions, reducing maintenance downtime and replacement frequency.
• Clear, unambiguous compatibility reference — using the part number as the best guide to fit and ratings.

Practical use cases and installation considerations:

• Ideal for updating legacy panels that manage large three‑phase loads, including heavy machinery feeds and process lines.
• Replacement in service where a direct match to MHL368001021 is specified, ensuring uninterrupted system protection and wiring configurations remain consistent.
• Great choice for retrofit projects aiming to consolidate protection with a single, reliable 3‑pole 600V solution.

Guidance to ensure a perfect fit: before ordering, confirm the panel’s compatibility by cross‑checking the exact part number (MHL368001021) with the panel docs. Verify the system is 600V and that your circuit demands an 800A, 3‑pole protection device. The part number is the most reliable reference for compatibility and ratings, reducing the risk of mismatches during procurement.

When you’re ready to upgrade or replace, this Square D circuit breaker delivers the high‑current, three‑phase protection your electrical system relies on — with the confidence that comes from sourcing the exact part designed for your equipment.