Siemens Power Supply 6EP1961-3BA01

The Siemens 6EP1961-3BA01 is a SITOP PSE201U buffer module designed to bridge short-term power failures in 24 V DC systems, ensuring reliable operation of connected loads. It uses maintenance-free capacitors as energy storage. 

Specification:

• Input Voltage: 24 V DC (rated value).
• Output Current: 40 A (rated value).
• Weight: 1.2 kg (approx. 2.646 lb).
• Dimensions: 70 mm (W) x 125 mm (H) x 125 mm (D).
• Operating Temperature: 0 to +60 °C (some sources say -25 to +70 °C).
• IP Rating: IP20.
• Mounting: DIN rail EN 60715.

This module is widely used in industrial automation to boost system reliability and prevent unexpected downtime caused by brief power outages.