Motor Protection Circuit Breaker Product Range

A Motor Protection Circuit Breaker (MPCB) is a device designed to protect electric motors against overload, short-circuit, and phase failure. It integrates thermal and magnetic protection in one compact unit for reliable motor safety in industrial applications.

An MPCB is specifically designed for motor protection, with adjustable settings matched to motor full-load current and improved phase-loss protection. Unlike standard breakers or separate overload relays, it combines overload and short-circuit protection in a single device, simplifying installation and reducing system cost.

Select an MPCB whose adjustable current range covers the motor’s full-load current (FLA). Proper selection also considers motor voltage, power rating, pole configuration, and application conditions to ensure reliable protection.

Our motor protection circuit breakers provide thermal overload protection, instantaneous magnetic short-circuit protection, and phase failure or imbalance protection. Each unit is calibrated using automatic testing equipment to ensure consistent and stable performance.

Yes. Our MPCBs are CE certified and comply with international standards such as IEC/EN 60947-2 and IEC/EN 60947-4-1, making them suitable for use in industrial motor control systems worldwide.

Our MPCB manual motor starters support standard DIN-rail mounting for easy installation. Current adjustment and operation are handled through a clear rotary knob or handle, allowing simple setup, manual ON/OFF control, and quick reset after tripping.