Square D | MP12H2 | Circuit Breaker | 1200A | 3-Pole | 600V

Square D MP12H2 Circuit Breaker is a rugged molded‑case protection device built for demanding electrical environments where dependable three‑phase power protection matters. Designed for maintenance, retrofit, and replacement projects, this 3‑pole breaker delivers reliable protection for circuits up to 600V with a substantial 1200A rating.

• Amperage: 1200A
• Poles: 3‑Pole
• Voltage: 600V

The MP12H2 designation signals compatibility within Square D’s MP series, making it a precise choice when matching existing panels, switchgear, or enclosures that require this specific form factor and rating. Its purpose‑built design supports quick swaps in maintenance cycles, streamlined retrofits, and dependable replacements in high‑current, three‑phase systems.

Why engineers and technicians choose MP12H2

• Exact fit for MP‑style panels and assemblies where 1200A, 3‑pole, 600V protection is required.
• Clear part identification—the MP12H2 part number is the most reliable reference for compatibility and ordering.
• Ideal for retrofit projects where maintaining the same breakers avoids cascading changes to wiring, bus assemblies, and labeling.

Use cases and practical applications

• Maintenance swaps in industrial control panels, distribution boards, and service entrances where a high‑current, three‑pole solution is needed.
• Retrofits in aging facilities upgrading protection without altering the surrounding electrical architecture.
• Spare/backup protection for critical manufacturing lines, data centers, and processing equipment that rely on stable 600V three‑phase power.

Important note: Before ordering, confirm fit and ratings to ensure compatibility with your equipment. The part number MP12H2 is the best reference for matching this breaker to your specific panel or switchgear assembly.