4-wire power header

4-wire power header is a power connector designed specifically for high-power appliances or precision equipment that requires independent grounding and zero line monitoring. Its core feature lies in having four independent wires: corresponding to the live wire (L), neutral wire (N), protective grounding wire (PE), and another critical neutral wire or status monitoring wire (usually the second neutral wire). This design enables it to carry higher currents, significantly enhancing electrical safety and stability. It is commonly used in high-power air conditioners, large servers, industrial equipment, and some high-end home appliances. It achieves more precise voltage control, fault current detection, or provides dual circuit power supply through additional lines, effectively avoiding the risk of equipment damage caused by line overload or voltage fluctuations. It is an important interface for connecting reliable power sources.