Siemens 6AV2 125-2AE03-0AX0 Connection Box Compact

Siemens SIMATIC HMI Connection Box Compact, model 6AV2125-2AE03-0AX0, is a compact interface module for SIMATIC Mobile Panels (2nd Generation) that mounts in a control cabinet and provides the essential panel-to-controller connection. It supports PROFINET and PROFIsafe, enables connection of a safety relay, and includes connection-point detection to simplify wiring in mobile-panel installations. The compact version is designed for Mobile Panels and Arctic Panel deployments, and offers web-based management to configure the device. Electrical data specify a 24 V DC supply with a rated current of 18 mA and an I²t inrush of 0.003 A²·s, while the enclosure measures about 125 mm in width by 151.5 mm in height and 151.3 mm in depth, facilitating integration into standard control cabinets. This box focuses on providing a streamlined, space-efficient interface for SIMATIC Mobile Panels, delivering reliable connectivity and safety-relay interfacing without the extra footprint of larger variants. It is one of three related variants in the 6AV2125 family—the Compact 2AE03-0AX0, Standard 2AE13-0AX0, and Advanced 2AE23-0AX0—highlighting its role as the lean, low-power option for compact installations.