Siemens 3RT1015-1AP01 Three Phase AC Contactor

Siemens 3RT1015-1AP01 is a three-pole, three-phase AC contactor used to switch three-phase motors and other loads in electrical control panels and motor control centers. In typical control schemes it acts as the main switching element powered by a low-voltage control circuit to start and stop larger equipment from a remote pushbutton, timer, or automation relay. This Siemens 3RT-series device is designed for standard panel layouts and is commonly integrated into motor starter assemblies with overload relays and auxiliary contact blocks to enable reliable, controlled operation of equipment such as conveyors, pumps, fans, and machine tools in industrial settings. It is suited for applications where repeated energization of a three-phase load is required and where clear separation between control and power circuits is maintained. When selecting this part, engineers reference the machine schematics to confirm compatibility with the load, the control voltage driving the coil, and the mounting arrangement appropriate for the control cabinet. As a Siemens product, it aligns with the brand’s broader automation ecosystem, offering consistent design language within standard control-panel installations.