The Siemens A5E01649325 (also identified by the manufacturing part number 17000016) is a specialized BD PCA (Printed Circuit Assembly) Coated IO Board designed for industrial automation systems. This breakout board is specifically engineered to handle 120VAC signals, providing a robust interface between field devices and control logic. To ensure longevity in harsh environments, the board features a high-quality conformal coating that protects sensitive electronic components from moisture, dust, and chemical contaminants.
Product Parameters and Technical Specifications
This module is built to meet rigorous industrial standards, ensuring stable performance under continuous load.
- Model Number: A5E01649325 / 17000016
- Component Type: BD PCA Coated IO Breakout Board
- Voltage Rating: 120VAC nominal
- Protection: Conformal coating for environmental resistance
- Connection Type: Terminal block interface for field wiring
- Mounting: Standard industrial rack or panel mounting compatible
- Operating Temperature: Designed for standard industrial ranges (typically 0°C to +60°C)
Product Datasheet Summary
The datasheet for the A5E01649325 emphasizes its role in signal isolation and distribution. It serves as a physical breakout point for multi-core cables, converting high-density connections into manageable 120VAC terminal points. The “BD” designation indicates its integration within specific Siemens drive or controller backplanes, while the “Coated” status makes it ideal for industries like wastewater treatment or chemical processing where atmospheric corrosion is a risk.
Country of Origin
This product is typically manufactured in Germany, reflecting Siemens’ commitment to high-precision engineering and European quality standards.
Application Fields
Due to its 120VAC rating and protective coating, this board is frequently utilized in:
- Power Generation: Managing auxiliary 120V control circuits.
- Oil & Gas: Operating in environments with high humidity or corrosive vapors.
- Manufacturing: Serving as the IO interface for heavy-duty assembly line controllers.
- Infrastructure: Used in HVAC and large-scale building automation systems.
Product Usage Instructions
- Inspection: Before installation, ensure the conformal coating is intact and no physical damage occurred during transit.
- Wiring: Connect the 120VAC field inputs/outputs to the designated terminal blocks. Ensure all wires are stripped correctly and tightened to the specified torque.
- Integration: Slot the PCA into the compatible Siemens housing or backplane.
- Safety: Always disconnect primary power before servicing the board to prevent electrical shock, given the 120VAC operating voltage.
Technical Description
The A5E01649325 functions as a bridge between high-voltage field signals and low-voltage logic processing. The circuitry is designed with trace spacing (creepage and clearance) compliant with 120VAC safety requirements. The use of a Printed Circuit Assembly (PCA) ensures high signal integrity, while the breakout design simplifies troubleshooting by providing accessible test points for technicians.
Q&A – Frequently Asked Questions
Q: What does the “Coated” part of the description mean? A: It means the board has undergone a conformal coating process. This is a thin polymeric film that “conforms” to the circuit board components to protect them against environmental stress.
Q: Can this board be used with 24VDC systems? A: No, this specific model is optimized and rated for 120VAC. Using it with significantly lower or higher voltages may result in signal failure or hardware damage.
Q: Where can I find more Siemens automation components? A: You can find a wide range of industrial parts and the Siemens A5E01649325 through specialized industrial suppliers.
Recommended Similar Models
- Siemens A5E00800635 – Specialized Control PCA for Siemens Drive systems.
- Siemens 6DD1607-0AA2 – SIMADYN D Control Module for high-performance applications.
- Siemens A5E01649326 – A related IO variant often used in similar breakout configurations.
- Siemens 6ES7322-1FH00-0AA0 – S7-300 Digital Output Module, 120/230VAC.
- Siemens 6ES7321-1EL00-0AA0 – S7-300 Digital Input Module, 120VAC for integrated PLC systems.


