Square D MAP36450MT Molded Case Circuit Breaker

Square D MAP36450MT Molded Case Circuit Breaker is a three-pole, 450-amp MCCB from Square D (Schneider Electric) designed for high-current protection in industrial power systems. Rated for up to 600 V AC, this bolt-on breaker protects feeders and motors in panelboards and switchboards, providing rapid interruption of fault currents and coordination with upstream protection. The MAP36450MT offers a 30 kA interrupting capacity at 480 VAC, making it suitable for medium fault-level installations where reliable protection is required. Built with rugged molded-case construction, it integrates into Square D MAP-series enclosures and is compatible with standard three-phase distribution layouts. In service, it safeguards large electrical loads by opening the circuit during overcurrents, short circuits, or ground faults in three-phase systems. This unit is intended for industrial environments such as manufacturing, processing plants, and large commercial facilities where robust, code-compliant overcurrent protection is essential.