Description
The FOXBORO A4H254-8F8T is a high-density discrete I/O module designed for the I/A Series distributed control system. It provides a reliable interface for processing binary signals between field devices and the system controller, supporting a mix of 8 digital inputs and 8 digital outputs in a single compact footprint.
Product Parameters
- Model: A4H254-8F8T
- Input Channels: 8 Discrete Inputs
- Output Channels: 8 Discrete Outputs
- Operating Voltage: 24V DC nominal
- Communication: High-speed fieldbus interface
Product Specifications
- Module Type: Combined Digital I/O
- Mounting: Standard Foxboro I/A Series baseplate
- Termination: FBM style field connection
- Isolation: Galvanic isolation between field and logic circuits
- Weight: 1.32 kg

Application Fields
- Power plant burner management systems
- Chemical reactor valve control
- Water treatment pump station automation
- Pulp and paper machinery sequence control
- General discrete process signaling
Q&A
Q: Does this module support redundant configurations? A: Yes, it can be installed in redundant baseplates to ensure continuous operation in the event of a single module failure.
Q: What type of field devices can be connected to the inputs? A: It is compatible with dry contacts, limit switches, and proximity sensors operating within the 24V DC range.
Q: Are the outputs fused? A: Standard configurations typically rely on baseplate or external fusing; check your specific termination assembly for integrated protection.
Optimize your I/A Series system with the FOXBORO A4H254-8F8T high-density module.

