Siemens 6EP1-961-3BA01 Buffer Module SITOP DC 24V

Siemens SITOP Buffer Module 6EP1-961-3BA01 (also listed as 6EP1961-3BA01) provides dedicated backup power for SITOP modular 24 V DC power supplies, preserving the 24 V output during short outages. It delivers up to 960 W of buffer power, configured for 24 V DC output at up to 40 A and accepting a 24–28.8 V DC input range to match typical SITOP systems. Buffering time ranges from 100 ms to 10 seconds depending on load, enabling a controlled shutdown or continued operation when the main supply dips. The module is designed for DIN-rail mounting and is intended for use with SITOP modular power supplies in automation environments (6EP1x3x-3BAx0).