Product Overview

The Siemens 6AV2125-2AE23-0AX0​ is a SIMATIC HMI Connection Box Advanced, purpose-engineered as the intelligent wall-mount interface station for Siemens’ second-generation Mobile Panels. Far more than a simple passive junction box, the Siemens 6AV2125-2AE23-0AX0​ integrates an active 3-port industrial Ethernet switch, PROFIsafe communication capability, emergency stop circuit bridging, and terminal detection into a single ruggedized, IP65-rated enclosure. As the cornerstone of mobile HMI connectivity, the Siemens 6AV2125-2AE23-0AX0​ enables operators to dock mobile panels at strategic locations throughout a facility while maintaining deterministic PROFINET communication with the higher-level control system.Belonging to Siemens’ product family of Connection Boxes for Mobile Panels (2nd Generation), the Siemens 6AV2125-2AE23-0AX0​ carries the PLM status PM300 (Active Product), confirming its ongoing availability with a standard ex-works lead time of just 1 day. Powered by 24 V DC (with a permissible range of 19.2 to 28.8 V DC) and drawing only 95 mA at approximately 2.3 W typical power consumption, the module is highly energy-efficient despite its sophisticated functionality. The Siemens 6AV2125-2AE23-0AX0​ features three industrial Ethernet interfaces with full PROFINET support, IRT (Isochronous Real-Time) capability, and MRP (Media Redundancy Protocol) client functionality—ensuring that even time-critical motion control communication and redundant ring network topologies are fully supported.What truly distinguishes the Siemens 6AV2125-2AE23-0AX0​ is its dual-mode safety architecture. Unlike the Compact and Standard connection box variants, the Siemens 6AV2125-2AE23-0AX0​ uniquely supports hardwired F-systems with​ emergency stop/stop circuit bypassing, while simultaneously enabling PROFIsafe-based safety evaluation without interrupting the emergency stop circuit. This flexibility allows the module to achieve the highest safety integrity levels—PLe per ISO 13849-1 and SIL 3 per IEC 61508. The Siemens 6AV2125-2AE23-0AX0​ continuously monitors STOP buttons, emergency stop buttons, and acknowledgement buttons, providing comprehensive functional safety coverage for personnel and equipment alike.Housed in a compact 230 × 145 × 76 mm plastic enclosure weighing just 0.72 kg, the Siemens 6AV2125-2AE23-0AX0​ mounts directly on walls or machine surfaces (control cabinet installation is not supported). With an operating temperature range of 0 °C to +55 °C and relative humidity tolerance up to 90%, the module thrives in harsh industrial environments. Certified to CE, cULus, and RCM standards, and holding marine approvals from Germanischer Lloyd (GL), American Bureau of Shipping (ABS), DNV, Lloyds Register (LRS), and Class NK, the Siemens 6AV2125-2AE23-0AX0​ is equally at home on factory floors and aboard ocean-going vessels. Configurable via WinCC Comfort, WinCC Advanced, or WinCC Professional in the TIA Portal, and manageable through web-based management, the Siemens 6AV2125-2AE23-0AX0​ stands as the definitive solution for deploying mobile HMI panels with enterprise-grade safety and networking capabilities.

Technical Specifications