The control and protection electrical switch adopts a modular design of a single product variety form, integrating key functions of traditional isolation switches (circuit breakers), AC contactors, overload (or overcurrent, phase failure) protection automotive relays, intelligent running comprehensive protection devices, starters, signal isolators, motor comprehensive protection devices and other low-voltage electrical products. It has long-distance fully automatic control and on-site immediate human resource control functions, control panel labeling and electromechanical engineering data signal alarm functions, overvoltage and undervoltage protection protection functions, phase failure and phase failure protection functions, and harmonious and coordinated time current protection characteristics (with overload long duration, overload short duration, and short-circuit fault instantaneous three-stage protection characteristics).

According to the required optional function control module or accessory, it has protection (including short circuit fault protection, overload protection, overcurrent protection, phase interruption protection, overvoltage and undervoltage protection, three-phase unbalance protection, residual current protection, etc.) and control functions (including manual control, local control, remote control, fire safety automatic control, etc.). It can complete the control and protection of various motor loads (including infrequent and frequent starts) and distribution equipment loads, providing detailed intelligent solutions for customers with different requirements.