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Wago 750-451 8Ai, Rtd
WAGO 750-451 8-channel RTD analog input module for the WAGO I/O System 750 supporting platinum and nickel resistance temperature sensors.
£287.23
Why Choose the WAGO 750-451 8-Channel RTD Analog Input Module?
The WAGO 750-451 is a precision 8-channel RTD analog input module designed for the WAGO I/O System 750. It allows PLCs and industrial controllers to measure temperature and resistance values from platinum and nickel resistance sensors, delivering accurate process monitoring for industrial automation systems.
The module directly connects to RTD sensors such as Pt100, Pt200, Pt500, Pt1000, Ni100 and Ni120, converting resistance measurements into temperature values through integrated linearisation. This enables precise temperature monitoring across manufacturing, process control and building automation applications. :contentReference
Each of the eight input channels delivers high-resolution measurement data and can be individually configured through WAGO-I/O-CHECK or controller software. With its compact DIN rail housing and robust CAGE CLAMP® connection technology, the module provides reliable installation within distributed industrial control cabinets.
Key Advantages
- High-density 8-channel RTD analog input module.
- Supports multiple Pt and Ni resistance temperature sensors.
- Automatic temperature linearisation for accurate measurements.
- High measurement accuracy with configurable settings.
- LED diagnostics indicate sensor faults such as wire breaks or short circuits.
- Compact DIN rail design for modular distributed automation systems.
Key Features
- 8 analog input channels.
- Resistance and RTD temperature measurement.
- Compatible with Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120 and Ni1000.
- 2-wire sensor connections.
- 16-bit process data resolution.
- Automatic temperature linearisation.
- LED indicators for channel status and diagnostics.
- DIN rail mounted modular design.
Industrial Temperature Measurement
RTD sensors provide highly stable and accurate temperature measurement for industrial processes. Automation systems rely on RTD input modules to convert resistance values into digital temperature data that PLCs can process for monitoring, alarms and closed-loop control.
The WAGO 750-451 integrates these measurement capabilities into the modular 750 I/O platform, enabling scalable distributed automation systems with precise temperature monitoring across industrial production and process control environments. :contentReference
Typical Applications
- Industrial temperature monitoring systems.
- Process automation and instrumentation.
- HVAC and building automation.
- Manufacturing process monitoring.
- Energy and utility infrastructure.
Technical Specifications
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| Number of I/O | 8 | |
|---|---|---|
| Product Series | WAGO I/O System 750 | |
| Device Type | Analogue I/O Module | |
| Signal Type / Function | Analogue, Temperature (RTD/TC) | |
| IP Rating | IP20 | |
| Series | WAGO I/O System 750 | |
| Module type | RTD analog input module | |
| Number of inputs | 8 channels | |
| Signal type | Resistance / RTD temperature measurement | |
| Supported sensors | Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000 | |
| Resolution | up to 0.01 °C (sensor dependent) | |
| Conversion time | approx. 100 ms | |
| Measurement error (25 °C) | ≤ ±0.6 K typical | |
| Measuring current | approx. 350 µA | |
| Data width | 16-bit per channel | |
| System supply voltage | 5 V DC via system bus | |
| Field supply voltage | 24 V DC via power jumper contacts | |
| Isolation | approx. 500 V between system and field levels | |
| Connection technology | CAGE CLAMP® spring terminals | |
| Mounting | 35 mm DIN rail | |
| Module width | approx. 12 mm | |
| Protection rating | IP20 | |
| Operating temperature | approx. 0 °C to +55 °C | |
| HS Code | 85389099 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the WAGO 750-451 module used for?
The module measures resistance values from RTD sensors and converts them into temperature readings that PLCs or automation controllers can process.
How many sensor inputs does the module provide?
The module provides eight analog input channels for connecting multiple RTD sensors.
Which RTD sensors are supported?
The module supports platinum and nickel RTD sensors including Pt100, Pt200, Pt500, Pt1000, Ni100 and Ni120. :contentReference
How are sensor errors detected?
The module provides LED diagnostics and can detect conditions such as short circuits, wire breaks or out-of-range measurements. :contentReference
How is the module installed?
The module mounts onto a standard 35 mm DIN rail and connects to the WAGO I/O System 750 through the internal system bus.
Trusted by Automation Engineers
WAGO I/O System 750 modules are widely used by machine builders and automation engineers to implement reliable distributed control systems across industrial and process automation environments.
