Siemens 3RT1035-3BB40 is a three-pole AC contactor with a 24 V coil used to switch three-phase motor loads in industrial control panels. Identified by the part number 3RT1035-3BB40, this Siemens device provides reliable on/off control for automation systems that require a drive signal to energize the contacts. It is suitable for motor start/stop applications and other three-phase switching tasks within Siemens automation ecosystems.
