
Siemens 6AG1226-6RA32-5XB0 SIPLUS Fail-Safe Digital Output Module
This entry details the Siemens SIPLUS SM 1226 fail-safe relay output module, designed for harsh industrial environments. The unit features conformal coating and supports PROFIsafe communication protocols for safety applications.
Quick Facts
- Part number
- 6AG1226-6RA32-5XB0
- Brand
- Siemens
- Category
- I/O Modules
- Product type
- I/O Modules
- Lifecycle
- Active Product
- Dimensions
- 10.8 x 8.5 x 8.7 cm
- Net weight
- 0.345 Kg
- Source category
- SIPLUS SM 1226 fail-safe relay output
Product Overview
The Siemens 6AG1226-6RA32-5XB0 is a specialized input/output module within the SIPLUS product line. It extends the functionality of standard S7-1200 series hardware for demanding conditions. Review Siemens 6AG1226-6RA32-5XB0 as I/O Modules with source category SIPLUS SM 1226 fail-safe relay output, recorded lifecycle Active Product, and submitted model identity.
This specific model incorporates a robust design intended for extended temperature ranges and enhanced environmental protection. It serves as a critical component in safety-related control systems.
Technical Review Notes
- The module provides two fail-safe digital outputs utilizing relay technology for reliable switching capabilities. Keep dimensions 10.8 x 8.5 x 8.7 cm and net weight 0.345 Kg unchanged while comparing project documents and product image evidence.
- It operates within a temperature range of -25°C to +55°C, ensuring stability in varied climates.
- Conformal coating is applied to the internal components to protect against moisture, dust, and corrosive agents.
- The device supports PROFIsafe protocol, enabling safe communication over standard PROFINET infrastructure networks.
- Physical dimensions are recorded at 10.8 x 8.5 x 8.7 cm, fitting standard DIN rail mounting configurations.
- The net weight is listed as 0.345 Kg, contributing to manageable handling during installation procedures.
Model Identification
- The part number 6AG1226-6RA32-5XB0 identifies this specific variant within the broader SIPLUS catalog structure. Use the source path SIPLUS Fail-safe digital inputs and outputs / SIPLUS SM 1226 fail-safe relay output to confirm catalog context, model family, parameter review scope, and technical inquiry preparation notes.
- It is based on the underlying hardware platform of the 6ES7226-6RA32-0XB0 module design.
- The SIPLUS designation indicates enhanced environmental ratings compared to standard industrial automation components.
- The suffix 5XB0 distinguishes this fail-safe relay output version from other digital output types.
Technical Parameters
| Product type | I/O Modules |
|---|---|
| Lifecycle | Active Product |
| Dimensions | 10.8 x 8.5 x 8.7 cm |
| Net weight | 0.345 Kg |
| Source category | SIPLUS SM 1226 fail-safe relay output |
Parameters are factual source fields retained for model review.
Parameter Review
- Review the maximum load current capacity of 5A per relay channel for circuit planning purposes.
- Verify the safety integrity level requirements, noting support for up to PL e per ISO 13849-1.
- Check SIL3 compliance according to IEC 61508 standards for functional safety application alignment.
- Confirm the 70 mm width requirement for the designated slot allocation in the controller rack.
- Assess the electrical isolation characteristics between the process side and the backplane bus interface.
Catalog Classification
Image & Label Review
- Inspect the front label for clear printing of the full Siemens part number and batch code.
- Examine the terminal block area for any signs of physical damage or corrosion on contacts.
- Check the housing integrity for cracks or deformations that might compromise the conformal coating seal.
- Verify the presence of the PROFIsafe address configuration switches or dip settings on the module face.
Product Image Gallery

Inquiry Preparation
- Gather project documentation specifying the required safety performance levels and environmental operating conditions.
- Prepare a list of existing S7-1200 CPU models to ensure mechanical and electrical interface alignment.
- Document the specific PROFIsafe function blocks and safety parameters needed for the control logic.
- Compile technical drawings showing the intended mounting location and recorded space within the control cabinet.
Category Context
This item falls under the broader category of industrial automation I/O modules for process control.
It is specifically classified within the SIPLUS fail-safe digital inputs and outputs product family segment.
Review Notes
- Ensure all safety-related parameters match the specific hazard analysis results for the target application.
- Cross-reference the firmware version requirements with the connected S7-1200 CPU software configuration details.
- Validate that the power supply specifications meet the voltage and current demands of the relay loads.
- Confirm that the installation environment does not exceed the specified temperature and humidity limits.



