Description
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Although the S7‑400 series has been superseded by S7‑1500 and ET 200SP systems, the 6ES7401-2TA01-0AA0 remains essential as a spare part for legacy installations requiring a stable 5 V DC supply.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
| Attribute | Details |
|---|---|
| Brand | Siemens |
| Model | 6ES7401-2TA01-0AA0 (PS 405 10A) |
| System Compatibility | SIMATIC S7‑400 PLC |
| Product Type | Power Supply Module |
| Input Voltage | 120–230 V AC (wide range) |
| Output Voltage | 5 V DC |
| Output Current | Max. 10 A |
| Backplane Bus Supply | Yes, powers all rack modules |
| Protections | Overload and short-circuit protection |
| Cooling | Natural convection |
| Mounting | Direct installation in S7‑400 rack |
| Dimensions | 290 × 50 × 210 mm |
| Weight | 2.5 kg |
| Compliance | CE, UL, CSA |
| Lifecycle Status | Spare part (S7‑400 discontinued) |
| Country of Origin | Germany |
Key Features
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Stable 5 V DC supply for S7‑400 racks.
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High 10 A output to support multiple modules.
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Integrated overload and short-circuit protection.
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Direct rack mounting with natural convection cooling.
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Compatible as a spare for legacy S7‑400 PLC installations.
Applications
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Process Automation: Supplying power to S7‑400 racks in chemical plants, refineries, and power stations.
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Factory Automation: Reliable 5 V supply for large production lines with multiple I/O modules.
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Energy Systems: Powering modules in turbine and generator monitoring systems.
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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.
Features
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