Wago 750-404 Up/down counter DC 24 V, 100 khz

Why Choose the WAGO 750-404 4-Channel Digital Input Module?

The WAGO 750-404 is a compact 4-channel digital input module designed for the modular WAGO I/O System 750/753. It receives 24 V DC control signals from field devices such as sensors, limit switches and push buttons and transfers these signals to the PLC or industrial controller through the system bus.

Each input channel includes an integrated noise-rejection filter that ensures reliable signal detection even in electrically demanding industrial environments. Electrical isolation between field wiring and the system electronics protects the automation system and improves operational stability.

With its slim DIN-rail design and robust CAGE CLAMP® connection technology, the module enables fast wiring, secure connections and efficient use of cabinet space in distributed automation installations.

Key Advantages

• Reliable 4-channel digital signal acquisition for industrial automation.
• Designed for 24 V DC control signals from sensors and switches.
• Integrated signal filtering for improved noise immunity.
• Electrical isolation between field and system electronics.
• Compact 12 mm DIN-rail module for high-density I/O installations.
• Fast installation using CAGE CLAMP® spring terminals.

Key Features

• 4 digital input channels.
• Designed for 24 V DC digital signals.
• Approx. 3 ms input filter for stable signal detection.
• Supports 2-, 3- and 4-wire sensor connections.
• Status LEDs for each input channel.
• CAGE CLAMP® spring pressure terminals.
• DIN-rail mounting for control cabinet installation.

Technical Specifications

• Manufacturer: WAGO
• Series: WAGO I/O System 750 / 753
• Model: 750-404
• Device type: Digital input module
• Number of inputs: 4
• 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 current: approx. 4.5 mA
• Input filter: approx. 3 ms
• Field supply voltage: 24 V DC (−25% to +30%)
• System supply voltage: 5 V DC via data contacts
• Isolation voltage: approx. 500 V (system/field)
• Connection technology: CAGE CLAMP®
• Module width: 12 mm
• Mounting: DIN-35 rail
• Operating temperature: approx. 0 °C to +55 °C
• Protection rating: IP20

Reliable Distributed I/O Signal Monitoring

Digital input modules allow PLC systems to monitor the status of sensors, switches and other field devices within industrial automation systems. The WAGO 750-404 converts these signals into process data that can be used by the control system for machine monitoring, diagnostics and automation logic.

Within the modular WAGO I/O System 750/753, the module integrates seamlessly with fieldbus couplers and controllers, enabling scalable distributed I/O architectures across industrial plants and machine automation systems.

Typical Applications

• Industrial machine automation.
• Monitoring sensors and proximity switches.
• Factory production and assembly lines.
• 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 sensors and field devices reliably within distributed industrial automation systems.