Home / News / ABB P8403 24V dc Digital Input Detailed Technical Overview

ABB P8403 24V dc Digital Input Detailed Technical Overview

Oct 11, 2025 ABB

ABB P8403 is an industrial module that supports 24V DC digital input, commonly used in automation and control systems for collecting digital signals. The following is a detailed feature and technical description of the ABB P8403 module:

ABB P8403 24V dc Digital Input Detailed Technical Overview

Product Features

1. Input performance

Supporting voltage range: 24V DC, compatible with standard industrial control voltages.

Input type: Digital input, designed specifically for switch signal acquisition, such as buttons, switches, or other digital output sensors.

Number of channels: Supports multiple independent input channels (the specific number can be determined according to the model).

High sensitivity: Ensure accurate collection of weak signals and reduce the possibility of false triggering.

2. Electrical isolation

Signal isolation: Each input channel is electrically isolated from the main control circuit to enhance anti-interference capability and protect the main system from overvoltage impact.

Ground loop protection: reduces interference caused by ground loops and is suitable for complex industrial electrical environments.

3. Response time

Quick response: Supports high-speed data acquisition to ensure real-time signal performance, suitable for dynamic process control scenarios.

De jitter function: Built in signal filtering mechanism to reduce misoperation caused by mechanical contact jitter.

4. System compatibility

Seamless integration with ABB automation systems: particularly suitable for ABB’s DCS (Distributed Control System) or PLC systems.

Standard communication interface: Supports compatible connections with devices from other vendors, meeting the requirements of multi vendor system integration.

5. Environmental adaptability

Wide temperature range: It can operate stably under extreme temperature conditions and is suitable for industrial site environments.

Anti vibration and impact: The modular structure design is sturdy and can withstand mechanical stress in industrial environments.

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