Thermal Magnetic MCCB

Thermal Magnetic MCCBs are engineered to provide comprehensive protection for low-voltage electrical circuits. These devices feature a bimetallic strip that heats and bends in response to sustained overcurrents, triggering the thermal trip mechanism. Concurrently, an electromagnetic coil detects sudden, high-magnitude currents indicative of a short circuit, initiating an instantaneous magnetic trip. This dual protection mechanism ensures both equipment longevity and operational safety.

Our product family offers Thermal Magnetic MCCBs with pole configurations including 3P and 4P, accommodating diverse system requirements. Frame current coverage ranges from 63A to 800A, with rated currents from 10A to 800A in referenced models, providing flexibility for various load demands. Breaking capacity levels are model-dependent and include C, S, L, M, and H classes, allowing selection based on prospective fault currents. These MCCBs are designed to comply with IEC60947-2 standards, making them suitable for deployment in target markets across Asia, Europe, South America, Africa, and Oceania. They feature rated operating voltages from AC400 to AC690 (model-dependent), rated insulation voltages from 800V to 1000V, and rated impulse withstand voltages from 8kV to 12kV, ensuring robust performance in demanding electrical infrastructures. Our commitment to quality and compliance is reflected in certifications such as CE, CB, and RoHS, supporting their integration into international projects. These MCCBs are critical for protecting distribution panels, motor circuits, and other industrial loads.