Siemens 6GK1901-1PH00 Automation Connection Component. Siemens 6GK1901-1PH00 is the exact manufacturer order number for a automation connection component in the SIMATIC NET PC Communication portfolio. Siemens describes this exact reference as: RCoax N-Connect stripping tool, Stripping tool for fast stripping of the RCoax cable in the field. The verified manufacturer lifecycle record is PM300: Active Product.