Siemens 6ES7194-2LH50-1AC0 Automation Connection Component. Siemens 6ES7194-2LH50-1AC0 is the exact manufacturer order number for a automation connection component in the SIMATIC ET 200 Distributed I/O portfolio. Siemens describes this exact reference as: Power cable M8, single-sided assembled with M8 socket, 4-pole, Length 5.0m. The verified manufacturer lifecycle record is PM300: Active Product.