The Siemens 4NC5223-2CE21 is a high-performance SIRIUS capacitor contactor designed for switching capacitor loads in power factor correction (PFC) systems. This 3-pole contactor, size S0, is engineered to handle the high inrush currents associated with capacitive loads, ensuring safe and reliable operation. With a 24V DC coil and screw terminals for easy installation, it is an essential component for improving energy efficiency and network quality in industrial and commercial applications. Its robust construction guarantees a long mechanical and electrical service life, making it a dependable choice for demanding environments.