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Wago 750-403 4Di, 24 Vdc 0.2ms
WAGO 750-403 digital input module with 4 channels for 24V DC signals designed for the WAGO I/O System 750/753 distributed automation platform.
£38.73
Why Choose the WAGO 750-403 4-Channel Digital Input Module?
The WAGO 750-403 is a reliable 4-channel digital input module designed for integration within the WAGO I/O System 750/753. It captures 24 V DC control signals from sensors, switches and other field devices and transfers them to the PLC or industrial controller through the system bus.
Each channel incorporates an integrated noise suppression filter to ensure accurate signal detection in electrically demanding industrial environments. The module also provides electrical isolation between field wiring and the internal electronics, helping protect the control system from electrical disturbances.
With its compact DIN-rail form factor and proven CAGE CLAMP® spring pressure connection technology, the module enables fast installation, secure wiring and high-density I/O configuration within industrial control cabinets.
Key Advantages
- Reliable 4-channel digital signal acquisition for automation systems.
- Designed for 24 V DC field signals from sensors and switches.
- Integrated signal filtering for improved noise immunity.
- Electrical isolation between field and system electronics.
- Compact 12 mm module width for high-density I/O assemblies.
- Quick installation using CAGE CLAMP® connection technology.
Key Features
- 4 digital input channels.
- Designed for 24 V DC digital signals.
- Approx. 3 ms input filter for signal stability.
- 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.
Reliable Distributed I/O Signal Monitoring
Digital input modules are fundamental components in industrial automation systems, enabling PLC controllers to monitor the state of field devices such as sensors, switches and push buttons. The WAGO 750-403 converts these field signals into digital process data that can be used for machine control, monitoring and diagnostics.
When installed within the modular WAGO I/O System 750/753, the module works with fieldbus couplers and controllers to create scalable distributed automation systems across manufacturing plants and industrial facilities.
Typical Applications
- Industrial machine automation.
- Monitoring sensors and limit switches.
- Factory production and assembly lines.
- Packaging and material handling systems.
- Distributed PLC I/O systems.
Technical Specifications
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| Signal / Input Range | 24 V DC | |
|---|---|---|
| Product Series | WAGO I/O System 750 | |
| Device Type | Digital I/O Module | |
| Coil / Supply Voltage | 24 V DC | |
| Digital Inputs | 4 | |
| Signal Type / Function | Digital | |
| Number of I/O | 4 | |
| Voltage | 24 V | |
| IP Rating | IP20 | |
| Series | WAGO I/O System 750 / 753 | |
| 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 | |
| HS Code | 85389099 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What does the WAGO 750-403 module do?
It receives digital signals from field devices such as sensors or switches and transmits them to the PLC through the WAGO I/O system.
How many input channels does the module provide?
The module includes four digital input channels.
What voltage signals can be connected?
The module is designed for 24 V DC digital signals, with logic 1 recognised between approximately 15 V and 30 V.
Can industrial sensors be connected directly?
Yes. The module supports common industrial sensor wiring including 2-, 3- and 4-wire sensors.
Where is the module installed?
The module is mounted on a DIN rail within the WAGO I/O System 750/753 assembly inside industrial control cabinets.
Trusted by Automation Engineers
WAGO digital input modules are widely used by control engineers to monitor field devices reliably within distributed industrial automation systems.
