Siemens 6ES7401-2TA01-0AA0 Power Supply Module

Product Description

The Siemens 6ES7401-2TA01-0AA0 is a dedicated power supply module (PS 405 10A) for the SIMATIC S7‑400 PLC system, providing a stable 5 V DC output to the backplane bus. It ensures reliable operation for CPUs, communication processors, and connected I/O modules in demanding industrial environments.

Equipped with a 10 A output, this module supports high-power configurations and multiple modules per rack. Overload and short-circuit protections are integrated to safeguard connected equipment. With natural convection cooling and direct rack mounting, it offers robust performance and long-term reliability in large-scale automation setups.

Although the S7‑400 series has been superseded by S7‑1500 and ET 200SP systems, the 6ES7401-2TA01-0AA0 remains essential as a spare part for legacy installations requiring a stable 5 V DC supply.

Technical Specifications

Key Features

• Stable 5 V DC supply for S7‑400 racks.

• High 10 A output to support multiple modules.

• Integrated overload and short-circuit protection.

• Direct rack mounting with natural convection cooling.

• Compatible as a spare for legacy S7‑400 PLC installations.

Applications

• Process Automation: Supplying power to S7‑400 racks in chemical plants, refineries, and power stations.

• Factory Automation: Reliable 5 V supply for large production lines with multiple I/O modules.

• Energy Systems: Powering modules in turbine and generator monitoring systems.

• Infrastructure: Supports distributed control in building automation and transportation systems.

FAQ

Q: What is the maximum output current?
A: The PS 405 10A module delivers up to 10 A at 5 V DC to the backplane bus.

Q: Can it operate with both 120 V and 230 V AC input?
A: Yes, it supports a wide input range of 120–230 V AC.

Q: Is it compatible with S7‑1500 or ET 200SP?
A: No, it is designed specifically for S7‑400 racks; newer systems require dedicated S7‑1500 or ET 200SP power supplies.