Siemens 3RT1015-1BB41 Contactor

Siemens 3RT1015-1BB41 is a three-pole power contactor (frame size S00) with a 24 V DC coil, rated AC-3 operation at 7 A and capable of switching up to 3 kW at 400 V. The device uses screw terminals for wiring and is listed as a phased-out product by Siemens, with the successor model 3RT2015-1BB41 referenced in Siemens catalogs. This 3-pole unit is intended to control electrical loads in control panels where reliable switching of moderate-power loads is required. Siemens provides documentation for this legacy part, and it remains available through distributors for repair or replacement. The 24 V DC coil accepts standard control signals from low-voltage circuits, aligning with common control schemes used in industrial automation. For new designs, the official recommendation is to adopt the 3RT2015-1BB41 model as the successor to maintain compatibility with Siemens' current product lineup.