Square D MAF36000M 1000A 3-Pole 600 V Circuit Breaker

Meet the Square D MAF36000M 1000A 3-Pole 600 V Circuit Breaker—the heavy‑duty solution your industrial power distribution relies on. Designed for demanding three‑phase systems, this molded‑case breaker delivers reliable protection for large feeders and equipment in up to 600 V environments, helping you prevent costly outages and equipment damage.

• High-current reliability: 1000 A nominal rating handles substantial loads and motor circuits with confident protection.
• 3-Pole, three-phase protection: Optimized for L1-L2-L3 configurations, ensuring balanced fault isolation across all phases.
• 600 V maximum system voltage: Suitable for a wide range of industrial distributions without oversizing components.
• Thermal‑magnetic trip behavior: Performs fast overload and short‑circuit interruption to safeguard downstream equipment and wiring.
• Rugged Square D build: Engineered for the rigors of industrial environments, delivering consistent performance over time.
• Clear part identification: Part Number MAF36000M a precise specification for ordering, maintenance, and panel compatibility.

Ideal applications

This 3‑pole circuit breaker is a natural fit for main protection or feeder circuits in commercial and industrial panels. Use it to guard large motor drives, processing lines, data‑center infrastructure, or any three‑phase distribution where a 600 V rating and high current capacity are required. It’s an excellent match for new installations and as a robust replacement part within existing Square D systems.

What makes it stand out

Unlike smaller or single‑phase options, the MAF36000M delivers coordinated, phase‑balanced protection across all three legs, reducing the risk of unprotected fault currents that could travel downstream. Its combination of a high current rating, three‑pole design, and a clear 600 V capability makes it a precise, purpose‑built component for serious power distribution tasks.

Practical tips for use

When integrating the MAF36000M, ensure your panel and bus assembly are compatible with this three‑pole unit and that wiring termination torque meets manufacturer guidelines. For ongoing reliability, pair it with appropriate enclosure protection and schedule routine inspections to verify trip unit operation and physical condition in high‑duty environments.