Square D | MHL364001380 | Circuit Breaker | 1200A | 3-Pole | 600V

Square D's MHL364001380 circuit breaker is engineered for heavy-duty electrical distribution, delivering reliable protection for three‑phase systems. With a 1200A rating, a 3‑pole configuration, and a 600V maximum, this unit is purpose-built for maintenance, retrofit, and replacement projects where exact specifications matter.

Why this breaker stands out: it’s designed to integrate seamlessly with compatible Square D panels, using the standard MHL series footprint for secure mounting and consistent electrical performance. The part number MHL364001380 is your best reference for fit and ratings, helping you avoid mismatches during upgrades or replacements.

Key specifications

• Amperage: 1200A
• Poles: 3-Pole (three-phase)
• Voltage rating: 600V
• Part number: MHL364001380

Ideal for facilities with heavy loads, motor feeders, or distribution circuits requiring high-current, three-pole protection. Use this breaker for maintenance to replace failing components, in retrofit projects to standardize protection, or in new installations where a proven Square D solution is preferred.

Compatibility and installation tips

• Always confirm fit and ratings before ordering by comparing your panel catalog and the breaker's form factor.
• Use the part number MHL364001380 as the primary reference for compatibility.
• Follow the panel manufacturer’s installation guidelines and general electrical safety standards when handling high-current breakers.

By delivering precise current protection for 3‑phase circuits, this breaker helps prevent equipment damage from overloads, reduces downtime due to unexpected trips, and simplifies inventory management with a known, compatible Square D component. If your project requires a 600V, 1200A, 3‑Pole protection device, the MHL364001380 is designed to provide dependable performance and straightforward compatibility across compatible Square D panels.