Patent Number: 
Section: claims

1. An electro-technical device, comprising:an input electrical connection supplied with an input signal and electrically isolated from an output electrical connection; anda bar magnet pivotally mounted on a pedicel between the input electrical connection and the output electrical connection; andat least one coil disposed adjacent to the bar magnet and being supplied with an electronic signal from a sensor, the bar magnet being responsive to an electromagnetic field generated by the at least one coil to cause the bar magnet to pivot to simultaneously come into contact with both the input electrical connection and the output electrical connection and complete a circuit and send out a control signal. 2. The electro-technical device according to claim 1, further comprising a housing for enclosing the bar magnet, the pedicel, the input electrical connection and the output electrical connection. 3. An electro-technical device, comprising:an input electrical connection supplied with an input signal and electrically isolated from an output electrical connection; anda bar magnet pivotally mounted on a pedicel between the input electrical connection and the output electrical connection; andat least one coil disposed adjacent to the bar magnet and being supplied with an electronic signal from a sensor, the bar magnet being responsive to an electromagnetic field generated by the at least one coil to cause the bar magnet to contact the input electrical connection and the output electrical connection and complete a circuit and send out a control signal, wherein the at least one coil includes a pair of coils including a first coil connected to one of a temperature sensor, a pressure sensor and a flow sensor and a second coil connected to a second one of a temperature sensor, a pressure sensor and a flow sensor. 4. A fault detection system for a nuclear reactor, comprising: a plurality of contactors each including;an input electrical connection supplied with an input signal and electrically isolated from an output electrical connection;a bar magnet pivotally mounted on a pedicel between the input electrical connection and the output electrical connection; anda pair of coils disposed on opposite sides of the bar magnet and each being supplied with an electronic signal from a sensor, the bar magnet being responsive to an electromagnetic filed generated by the pair of coils to cause the bar magnet to pivot to simultaneously come into contact with both the input electrical connection and the output electrical connection and complete a circuit and send out a control signal. 5. The fault detection system according to claim 4, wherein each of the plurality of contactors further comprising a housing for enclosing the bar magnet, the pedicel, the input electrical connection and the output electrical connection. 6. The fault detection system according to claim 4, wherein the pair of coils include a first coil connected to one of a temperature sensor, a pressure sensor and a flow sensor and a second coil connected to a second one of a temperature sensor, a pressure sensor and a flow sensor.