Power supply The power supply is used to provide electrical supply to all types of electromechanical and electromagnetic locks and direct current electric strikes. Main features: Connection cable equipped with earth connection.Includes installation support.* We recommend downloading the technical data sheet below to see all the options. Downloads TESA_EA700_Technical_document_1.pdf (.pdf, 76 kB) Close Door status sensingMagnetic door status detector Power transfer door loopsSurface lead covers to transfer cables from the frame to … Fire prevention magnetic door holderElectromagnetic door holders for fire rated doors.