The xEffect NZM-PMX series circuit breakers with Power Expert Release (PXR) electronics cover motor protection applications with just four compact sizes and are suitable for the IEC market. The integrated energy measurement function provides currents, voltages, and active energy (kWh) with accuracy class 1 according to IEC 61557-12. Testing functions and settings can be accessed via a micro-USB interface directly on the breaker. Installation is always flexible due to modular functional groups and can be enhanced with a wide range of accessories. Effective value measurement and thermal memory are also included.