Siemens 3RT1015-1WB41 Industrial Three Phase Contactor

Siemens 3RT1015-1WB41 is a three-pole Sirius power contactor designed for AC-3 motor switching, delivering 7 A of nominal current and 3 kW at 400 V with a 24 V DC coil. It features a 3-pole configuration with a single normally open contact, housed in the compact S00 frame size and wired via screw terminals for easy panel installation. A built-in varistor provides transient suppression to help protect downstream control electronics during switching events. The device is specified for frequent start/stop operation with a typical mechanical life of up to 30,000,000 switching cycles, making it suitable for automation tasks such as driving small-to-medium three-phase motors in conveyors, pumps, or fans, where 24 V control signals are used. Its compact footprint and standard 24 VDC coil facilitate integration with common PLC-based control schemes, and the unit can be paired with Siemens auxiliary contact blocks for expanded control logic if needed.