Siemens 90177300000R Power Supply

Siemens 90177300000R Sitras MDC PS Power Supply is the dedicated AC-to-DC power module at the heart of Siemens Sitras MDC DC traction systems. Designed for rail applications, it feeds the Sitras MDC central unit and allied protection/control electronics, enabling reliable operation in mass transit and mainline networks. This PS unit carries the internal designation A2V00002586350 and is specified for an input range of 115–240 VAC, supporting worldwide mains compatibility. In the Sitras MDC architecture, the MDC PS power supply is part of the modular digital controller family used for DC traction power systems up to 3,000 V DC, including eHighway configurations. The 90177300000R module is the replacement/maintenance component for Sitras MDC PS assemblies, ensuring consistent energy provisioning within the MDC power chain. Typical applications include rail substations and centralized traction power installations where Siemens Sitras MDC powers the controlled DC traction infrastructure.