Wago 750-400 2Di, 24 Vdc 3ms

Why Choose the WAGO 750-400 2-Channel Digital Input Module?

The WAGO 750-400 is a compact 2-channel digital input module designed for the WAGO I/O System 750/753. It receives 24 V DC control signals from field devices such as sensors, switches and proximity detectors and transfers them to the automation controller through the system bus.

Each input channel includes a built-in noise-rejection filter to ensure reliable signal acquisition in industrial environments. The module provides electrical isolation between the field level and the system electronics, improving operational reliability and protecting the control system from electrical disturbances. :contentReference

With its compact DIN-rail design and WAGO CAGE CLAMP® connection technology, the module enables fast, tool-free wiring and dependable connections in control cabinets and distributed automation systems.

Key Advantages

• Reliable 2-channel digital signal acquisition for industrial automation.
• Designed for 24 V DC field signals from sensors and switches.
• Integrated noise-rejection filter for stable signal processing.
• Electrical isolation between field and system levels.
• Compact 12 mm DIN-rail module for high-density I/O systems.
• Fast installation using CAGE CLAMP® spring terminals.

Key Features

• 2 digital input channels.
• Designed for 24 V DC signals.
• 3 ms input filter for signal stability.
• Supports 2-, 3- and 4-wire sensor connections.
• Integrated status LEDs for channel diagnostics.
• DIN-rail mounting for control cabinet installation.

Technical Specifications

• Manufacturer: WAGO
• Series: WAGO I/O System 750 / 753
• Model: 750-400
• Device type: Digital input module
• Number of inputs: 2
• Signal type: Digital voltage
• Rated input voltage: 24 V DC
• Signal voltage (0): −3 V to +5 V DC
• Signal voltage (1): 15 V to 30 V DC
• Input filter: 3 ms
• Input current (typ.): 4.5 mA
• Field supply voltage: 24 V DC (−25% to +30%)
• System supply voltage: 5 V DC via data contacts
• Isolation: 500 V system/field
• Connection technology: CAGE CLAMP®
• Mounting: DIN-35 rail
• Module width: 12 mm
• Operating temperature: 0 °C to +55 °C
• Protection rating: IP20

Distributed I/O for Industrial Automation

Digital input modules are used to capture signals from sensors, switches and field devices in industrial automation systems. The WAGO 750-400 allows these signals to be transmitted through the WAGO I/O System to PLC controllers and industrial PCs for monitoring and control.

Because the module supports multiple wiring methods and includes built-in filtering and isolation, it is well suited for demanding industrial environments where electrical noise and interference can affect signal integrity. :contentReference

Typical Applications

• Industrial machine automation.
• Factory production lines.
• Monitoring of sensors and limit switches.
• Packaging and material handling equipment.
• Distributed PLC I/O systems.

Trusted by Automation Engineers

WAGO digital input modules are widely used by control engineers to monitor field devices reliably within distributed industrial automation systems.