Wago 750-1421 4Di, 24 Vdc 0.2ms 3-Wire

Why Choose the WAGO 750-1421 Digital Input Module?

The WAGO 750-1421 is a compact 4-channel digital input module designed for the modular WAGO I/O SYSTEM 750. It enables automation systems to reliably monitor digital signals from sensors, switches and other field devices, ensuring accurate signal acquisition within distributed industrial automation architectures.

Part of the trusted WAGO automation portfolio, this module communicates with a compatible fieldbus controller and transfers digital input signals from connected field devices to the automation system. Its modular design allows engineers to create scalable distributed I/O systems by combining multiple digital and analogue modules depending on system requirements.

The module installs directly onto the WAGO I/O SYSTEM 750 backplane and mounts on a 35 mm DIN rail. Its compact design makes it ideal for installations where cabinet space is limited, such as machine automation panels, manufacturing systems and building control cabinets.

Key Advantages

• Monitors up to 4 digital input signals from sensors and switches.
• Compatible with the modular WAGO I/O SYSTEM 750.
• Compact design for efficient control cabinet installations.
• Reliable signal acquisition for industrial automation systems.
• Simple integration with WAGO fieldbus controllers.
• Scalable architecture for flexible distributed I/O systems.

Key Features

• 4-channel digital input module.
• Compatible with WAGO I/O SYSTEM 750.
• Designed for distributed automation architectures.
• DIN rail mountable modular housing.
• Supports connection of sensors, switches and digital field signals.
• Integrated status LEDs for channel diagnostics.
• Expandable system configuration with additional I/O modules.

Technical Specifications

• Manufacturer: WAGO
• Series: I/O SYSTEM 750
• Model: 750-1421
• Product type: Digital input module
• Number of inputs: 4
• Input type: Digital
• System compatibility: WAGO I/O SYSTEM 750
• Mounting: DIN rail 35 mm (EN 60715)
• Status indication: Channel LEDs
• Application: Monitoring digital field signals in industrial automation systems

Distributed I/O for Industrial Automation

Distributed I/O modules allow sensors and field devices to connect directly to decentralised input and output modules rather than routing wiring back to a central PLC cabinet. This architecture reduces wiring complexity and improves flexibility in modern industrial automation systems.

The WAGO I/O SYSTEM 750 platform is widely used by machine builders and system integrators due to its modular expansion capability, compact installation footprint and reliable industrial communication performance.

Typical Applications

• Industrial automation systems.
• Machine building and production equipment.
• Sensor monitoring in manufacturing processes.
• Distributed control and automation installations.
• Building automation and infrastructure monitoring.

Trusted by Automation Engineers

WAGO distributed I/O modules are trusted worldwide by automation engineers and system integrators for reliable signal acquisition and scalable industrial automation architectures.