ABB binary input module BE/S8.230.3.2 BE/S4.230.3.2, 8-channel DIN-rail mounting

ABB BE/S8.230.3.2 BE/S4.230.3.2 is an 8-channel binary input module designed for DIN-rail mounting. It provides eight discrete digital inputs to monitor switches, push-buttons or contact sensors and interfaces with ABB building automation systems. The module centralizes multiple wired signals into a compact unit that fits standard control panels and simplifies wiring by grouping inputs at a single DIN-rail location, enabling reliable status reporting and integration with higher-level controllers.

Advantages

The module offers eight individually addressable inputs in a compact housing suitable for DIN-rail installation, reducing panel space and cable runs. Its design supports straightforward wiring of common dry-contact sensors and switches, and it integrates seamlessly with compatible ABB automation equipment for consistent signal handling. The device contributes to organized input collection, easier maintenance, and predictable behavior in monitoring and control applications.

Suitable for

• Monitoring door or window contacts in building automation
• Collecting status signals from push-buttons and selector switches
• Integration into control panels for HVAC, lighting, or access control systems
• Centralizing multiple discrete inputs for machine or process monitoring

Key specifications

• Number of inputs: 8 discrete binary inputs
• Mounting: DIN-rail compatible enclosure for standard distribution panels
• Input type: dry-contact compatible digital inputs for switches and relays
• Connection method: screw terminal wiring for input signals and bus/communication interface
• Form factor: compact module designed for modular panel installations

How to use

Install the module on a standard DIN-rail inside the control cabinet and secure all wiring according to applicable electrical standards. Connect each switch or sensor to an individual input terminal using the specified conductor sizes and tighten terminals to the recommended torque. Ensure the module is connected to the appropriate bus or controller interface so inputs are mapped and recognized by the building automation system. Configure input functions and addressing in the controller software according to system design to enable correct status monitoring and automation logic.

Usage recommendations

Place the module in a dry, vibration-free location within the control cabinet and follow manufacturer guidelines for separation from high-voltage or noisy power lines. Use shielded or twisted-pair wiring where long cable runs are necessary to reduce electrical interference, and label input wiring clearly at both ends to simplify maintenance and troubleshooting.