Siemens 6EP1931-2EC42 DC UPS Power Supply Module

Siemens SITOP DC UPS module 6EP1931-2EC42 is a 24 V DC uninterruptible power supply designed to keep critical automation loads energized during short power interruptions. It delivers 24 V DC output at up to 15 A, with a 24 V DC input capability up to 16 A, making it suitable for actively powered PLCs, sensors, and other control gear that rely on steady 24 V power. This module features a USB interface for local monitoring and configuration, enabling quick status checks and integration with SITOP UPS management workflows. Siemens notes a substitute is available: 6EP4136-3AB00-1AY0, providing a direct substitute if needed. As part of the SITOP DC UPS family, the 6EP1931-2EC42 is intended for applications where a reliable, compact DC UPS backup is required to bridge brief outages without data loss or control disruption in automation cabinets and similar installations.