Siemens 6AG2522-5HF00-1AB0 SIPLUS S7-1500 DQ 8x230V AC ST 5A T1 RAIL Digital Output Module

Where It Excels in Industrial Use

• Railway automation systems requiring relay-based switching of higher-voltage AC and DC loads.
• Rolling-stock control equipment operating in temperature-variable environments.
• Industrial control panels where galvanically isolated relay contacts are preferred for field loads.
• Applications controlling contactors, motor starters, valves, lamps, and other switching devices.
• Systems requiring up to 5 A switching capability per output group.
• S7-1500 installations where conformal coating and enhanced railway environmental performance are required.

Key Strengths at a Glance

• 8 relay-based digital outputs.
• Rated switching voltage up to 230 V AC.
• Supports 24 to 120 V DC and 24 to 230 V AC load voltages.
• Up to 5 A rated output current per channel/group.
• Outputs arranged in 8 individual groups.
• 24 V DC relay-coil supply.
• Parameterizable outputs with configurable substitute values.
• Integrated switching-cycle counter for the relay outputs.
• Supports redundant load control by parallel switching of two outputs.
• Conformal coating for SIPLUS extreme RAIL applications.
• Operating temperature from -25 °C to +60 °C, with +70 °C permissible for 10 minutes under the specified OT1 conditions.

Technical FAQs

1. What type of digital outputs does the 6AG2522-5HF00-1AB0 provide?

The module provides eight relay-based digital outputs. Each output is individually grouped and can switch external AC or DC loads within the specified voltage and current limits.

2. What load voltage can the relay outputs switch?

The relay contacts are rated for 230 V AC and can also switch 24 to 120 V DC and 24 to 230 V AC loads, subject to the applicable load and switching-capacity specifications.

3. What is the rated output current?

The rated output current is 5 A. The module documentation also specifies an allowable thermal continuous current of up to 8 A under the applicable conditions, so load selection and installation must follow the Siemens specifications.

4. What voltage powers the relay coils?

The integrated relay coils operate from a nominal 24 V DC supply. The permissible supply range is 19.2 to 28.8 V DC.

5. Does the module support substitute values?

Yes. Substitute values can be configured for the digital outputs. This allows predefined output states to be used when the configured operating conditions require substitute-value behavior.

6. Does the module provide relay switching-cycle information?

Yes. The module supports an integrated operating-cycle counter for the relay outputs when the required firmware functionality is available. This can be used for maintenance-oriented monitoring of relay operation.

7. Does the module support isochronous operation?

No. The 6AG2522-5HF00-1AB0 is not designed for isochronous output operation. It is intended for conventional S7-1500 digital output control using relay contacts.

8. Can two outputs be connected in parallel?

Yes. Parallel switching of two outputs is supported for logic links and redundant control of a load. Parallel switching for increasing the output current is not supported.

9. Does the module include short-circuit protection?

No. The relay contacts themselves do not provide electronic short-circuit protection. Appropriate external circuit protection must therefore be provided according to the connected load and installation requirements.

10. Can the module be used for safety-related load-group shutdown?

The underlying 6ES7522-5HF00-0AB0 relay module supports safety-oriented shutdown of load groups up to SIL 1 according to EN IEC 62061:2021 and Category 2 / PL c according to EN ISO 13849-1:2015 under the specified conditions. The complete safety function must still be designed and validated as part of the overall application.