Residential AC contactors, hereinafter referred to as contactors, are mainly suitable for power systems operating at 50Hz (or 60Hz) with a rated working voltage of 230V. Under the AC-7a usage category, they are used in circuits with a rated working voltage of up to 230V and a rated working current of 63A, serving as remote switches and main circuit controllers. This product is primarily used for controlling low-inductive loads in household appliances and similar applications, as well as household motor loads.