Wago 750-455/040-000 4Ai, 2-4-Wire Se

Why Choose the WAGO 750-455/040-000 4-Channel Analog Input Module?

The WAGO 750-455/040-000 is a rugged 4-channel analog input module from the WAGO I/O System 750 XTR range. It is designed to measure standard 4–20 mA current loop signals from industrial transmitters and sensors, converting them into digital data that PLCs and controllers can process for monitoring and control tasks.

Each channel accepts a single-ended current input and transmits the measured value with a 12-bit resolution, ensuring reliable signal acquisition for process automation systems. The module’s design also includes electrical isolation between the field level and system bus, helping protect automation equipment from interference and electrical disturbances. :contentReference

As part of the WAGO 750 XTR platform, this module is engineered for extreme environmental conditions. It provides improved resistance to vibration, electromagnetic interference and impulse voltages while operating reliably across a wide temperature range, making it suitable for demanding industrial and infrastructure installations. :contentReference

Key Advantages

• Reliable 4-channel analog input module for industrial automation.
• Processes standard 4–20 mA current loop signals.
• XTR extreme-environment design for harsh operating conditions.
• Galvanically isolated inputs improve signal reliability.
• Compact DIN rail module suitable for distributed I/O systems.
• Compatible with WAGO I/O System 750 controllers and couplers.

Key Features

• 4 analog input channels.
• 4–20 mA current input range.
• Single-ended signal input configuration.
• 12-bit measurement resolution.
• Electrical isolation between system and field level.
• 2-wire transmitter connections.
• LED diagnostics for module and channel status.
• DIN rail mounted modular design.

Technical Specifications

• Manufacturer: WAGO
• Series: WAGO I/O System 750 XTR
• Model: 750-455/040-000
• Module type: Analog input module
• Number of inputs: 4 channels
• Signal type: Current input
• Input range: 4–20 mA
• Signal characteristic: Single-ended
• Resolution: 12-bit
• Supply voltage: 24 V DC field supply
• System supply: 5 V DC via system bus
• Isolation voltage: approx. 500 V between system and field
• Connection technology: CAGE CLAMP® spring terminals
• Sensor connection: 4 × 2-wire transmitters
• Mounting: 35 mm DIN rail
• Module width: approx. 12 mm
• Operating temperature: −40 °C to +70 °C
• Protection rating: IP20

Industrial Current Loop Monitoring

Current loop signalling such as 4–20 mA is widely used in industrial automation because it enables reliable signal transmission across long cable runs while maintaining strong resistance to electrical noise. Field transmitters measuring process variables such as pressure, temperature, flow and level commonly use this signalling standard.

The WAGO 750-455/040-000 converts these analog current signals into digital values that PLCs and automation controllers can analyse for monitoring, alarms and process control. This allows precise supervision of industrial processes within distributed control architectures. :contentReference

Typical Applications

• Industrial process monitoring and control systems.
• Integration of 4–20 mA transmitters and sensors.
• Energy infrastructure and power generation systems.
• Marine and transport automation installations.
• Harsh-environment automation and infrastructure systems.

Trusted by Automation Engineers

WAGO I/O System 750 modules are widely used by machine builders and automation engineers to implement scalable distributed control systems across industrial and infrastructure automation environments.