Siemens 3RT2027-1FB40 Power Contactor

The power contactor, also known as current contactor, main contactor or motor contactor, from Siemens with type number 3RT2027-1FB40 is an electrical switching component used in pneumatic control technology for switching electrical loads. It has the dimensions 11 x 11 x 4 cm and weighs 0.6 kg. Power contactors enable the safe and remote switching on and off of consumers, especially electric motors, heaters and lighting systems, and protect them against overload and short circuit. Typical applications are found in industrial automation systems, mechanical and plant engineering, and power distribution for the reliable control of production processes.