Siemens 3RT1015-2KB41 Three-Phase Electrical Contactor

Siemens 3RT1015-2KB41 is a three-phase electrical contactor from Siemens. This device is used to switch and control three-phase power in electrical control panels and motor-control circuits. It is part of the Siemens 3RT contactor family and carries the model number 3RT1015-2KB41. As a coil-operated switch, the contactor energizes to close the main contacts, enabling current to flow to connected loads under controlled conditions. In typical motor-control or automation assemblies, it is paired with overload relays and optional auxiliary contacts to form a complete starter; the exact coil voltage, contact configuration, and current rating are specified in Siemens’ 3RT1015 series documentation.