The SIMATIC HMI Connection Box Standard (6AV2125-2AE13-0AX0) is a standard connection box from Siemens’ SIMATIC HMI series, designed for wall mounting. It supports PROFINET and PROFIsafe protocols, enables connection of a safety relay, includes terminal detection, and features an integrated switch. With a net weight of 0.778 kg and packaging dimensions of 15.90 x 24.30 x 8.10 cm, it is used in industrial automation projects, particularly for secure and reliable connection of mobile HMI panels.