SIMATIC S7-1500, mounting rail 2000 mm (approx. 78.7 inch) without grounding screw, integrated DIN rail for mounting of incidentals such as terminals, automatic circuit breakers and relays for custom length, grounding screw (6ES7590-5AA00-0AA0, 20 units) must be ordered separately SIMATIC DIN rails are available in diverse lengths for direct installation in control cabinets or for cutting into individual lengths. The appropriate grounding terminals must be used for proper grounding connection.