M23 Hybrid Circular Connectors Phoenix Contact M23 Hybrid Circular Connectors are all-in-one connectors that securely transmit signals, data, and power. These compact M23 connectors handle currents up to 30A and voltages up to 850VDC or 630VAC. The M23 series features a centrally located Protective Earth (PE) ground, along with four power contacts and four signal contacts. The data pins have a 0.8mm diameter and provide an optional Ethernet connection per CAT 5e. Phoenix Contact M23 Hybrid Circular Connectors are suitable for a variety of applications.