Square D | MGA36450 | Circuit Breaker | 3-Pole

Engineered by Square D, the MGA36450 3-Pole Circuit Breaker delivers reliable, coordinated protection for 3-phase electrical systems. Designed for maintenance, retrofit, and replacement projects, this genuine Square D component helps keep critical equipment protected and operating smoothly when exact specifications are required.

Key advantages

• 3-Pole configuration supports 3-phase circuits, providing synchronized protection across all three conductors.
• Genuine Square D component ensures compatibility with Square D panels and standard ratings for reliable integration into your electrical distribution.
• Maintenance, retrofit, and replacement ready—a practical choice for upgrading existing systems, restoring protection, or stocking spare parts for service calls.
• Clear compatibility reference—the part number MGA36450 is your best reference to match fit and ratings for your application.
• Fit-and-order confidence—verify the correct fit and ratings for your panel and project before purchasing to avoid mismatches.

How this 3-pole breaker solves common problems

• Prevents uneven or unexpected outages by delivering coordinated protection across all phases in a 3-phase system.
• Streamlines repairs and upgrades with a direct, compatible replacement that fits your existing panel distribution equipment.
• Reduces downtime by enabling a quick, accurate part swap when a breaker needs replacement or when performing a planned retrofit.

Ideal for

• Electricians, facilities managers, and maintenance teams conducting panel retrofits, expansions, or replacements in commercial or light industrial environments.
• Situations requiring exact part-number accuracy to maintain system specifications and compliance.

Notes: Use MGA36450 as the primary compatibility reference. Always confirm fit and ratings for your specific panel and application before purchasing to ensure proper interrupter rating, pole configuration, and overall compatibility.