Product Overview
The Siemens 6ES7138-4CA01-0AA0 ET200S Power Module PM-E is a compact power module designed for 24V DC applications within the ET200S distributed I/O system. It supplies load voltage to connected modules, featuring a rated voltage of 24 V DC and a current carrying capacity up to 10 A at 60°C. With reverse polarity protection and diagnostic LEDs for power (PWR green) and group error (SF red), this module ensures reliable operation and easy troubleshooting. The Siemens 6ES7138-4CA01-0AA0 is essential for building robust industrial control systems.
Technical Specifications
| Parameter |
Value |
| Supply voltage (rated DC) |
24 V |
| Short-circuit protection |
No (external automatic circuit breaker, tripping characteristic C) |
| Reverse polarity protection |
Yes |
| Input current from load voltage L+ (without load), max. |
4 mA |
| Current carrying capacity up to 60°C, max. |
10 A |
| Power loss, typ. |
0.1 W |
| Diagnostics – missing load voltage |
Yes |
| Diagnostics indication LED – rated load voltage PWR (green) |
Yes |
| Diagnostics indication LED – group error SF (red) |
Yes |
| Parameter (3 byte) |
Missing load voltage: Disable/enable |
| Potential separation primary/secondary |
Yes (between rated load voltage and backplane bus, between power modules) |
| Isolation tested with |
500 V DC |
| Width |
15 mm |
| Height |
81 mm |
| Depth |
52 mm |
| Weight, approx. |
35 g |
Industry Applications
The Siemens 6ES7138-4CA01-0AA0 is widely used in manufacturing lines, process control systems, and automated material handling. For example, in a packaging line, it provides stable 24V DC power to sensor clusters and actuator modules, while its diagnostic LEDs help operators quickly identify missing load voltage. Its compact 15 mm width allows dense installation in control cabinets, saving valuable space.
Installation Guidance
Mount the Siemens 6ES7138-4CA01-0AA0 on a DIN rail within an ET200S station. Ensure the external short-circuit protection uses a circuit breaker with tripping characteristic C. Connect load voltage L+ to the module’s input terminals. The reverse polarity protection safeguards against wiring errors. After installation, verify the green PWR LED illuminates, indicating correct power supply.
Maintenance and Reliability
The low typ. power loss of 0.1 W minimizes heat generation, extending the module’s service life. Periodically inspect the connection points and ensure ambient temperature stays below 60°C. The diagnostics features (missing load voltage detection and SF red LED) enable proactive maintenance, reducing unexpected downtime. This aligns with a cost-effective strategy by preventing system failures.
Selection Guide
Before purchasing the Siemens 6ES7138-4CA01-0AA0, verify your system voltage is 24V DC and you have compatible ET200S interface modules. The module supports up to 10 A at 60°C; ensure your load does not exceed this. For reliable supply, order from trusted sources like ubest101.