This document is the instruction manual of 6EP1961-3BA20 redundancy module, which introduces the features of the product.
This manual describes the installation, wiring, and safe operation of the Siemens SITOP redundant module 6EP1961-3BA20. It includes safety precautions, warning that only qualified personnel may service the equipment, and detailed wiring diagrams for connecting two 24 V power supply units in a redundant configuration.
Technical specifications such as rated input voltage, output current range, environmental limits, and mechanical dimensions are listed, along with recommended mounting on a DIN rail with proper clearance and torque values for terminal screws. This manual is written in Chinese.
| Rated input voltage | 24V DC |
|---|---|
| Operating voltage range | 22~28.8V DC |
| Output voltage | Ue – approx. 0.5V |
| Output current | 0~40 A |
| Maximum total output current | 40 A |
| Threshold adjustment range | 20V ± 0.5V ~ 25V ± 0.5V |
| Storage temperature range | -25~+85°C |
| Operating temperature range | 0~+60°C |
| Protection class | IP20 |
| Weight | 1.0 kg |
The module is rated for 24 V DC input, with an operating range of 22 V to 28.8 V DC.
The module connects two 24 V power supply units in parallel; if one fails, the other continues to supply power, indicated by LEDs and relay contacts.