Wago 750-450 Analog Input Module

USD 263.89

4-channel resistance-measurement module for Pt/Ni sensors and potentiometers; 2/3/4-wire input, 5 VDC system, 24 VDC field, IP20.

SKU Wago-750-450 Category
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Wago 750-450 Analog Input Module

Model Identifier 750-450
Official Part Number 750-450
GTIN Standard 4017332448635

Technical Overview

4-channel WAGO I/O system analog input module for resistance measurement and potentiometer positions. The module connects Pt and Ni resistance sensors as well as three-wire potentiometers, supporting two-, three-, and four-wire sensor wiring. It provides automatic linearization over the temperature range, configurable sensor types, channel deactivation, and error indication via red LEDs for short circuit, wire break, or out-of-range conditions. Configuration is supported through WAGO-I/O-CHECK, GSD files, CODESYS Library, and e!COCKPIT. Electrical interface includes 5 VDC system supply via data contacts and 24 VDC field supply via power jumper contacts.

Key Features

  • 4 analog inputs / 4 total channels
  • Resistance measurement and potentiometer positions
  • Supports 2-wire, 3-wire, and 4-wire resistance sensors
  • Supports three-wire potentiometers
  • Automatic linearization over the entire temperature range
  • Sensor error indication via red LED
  • Unused channels can be deactivated
  • Configurable via WAGO-I/O-CHECK, GSD files, CODESYS Library, and e!COCKPIT
  • 5 VDC system supply via data contacts
  • 24 VDC field supply via power jumper contacts
  • 500 V system/field isolation
  • Push-in CAGE CLAMP connection technology
  • DIN-35 rail mounting
  • IP20 protection type
  • Polycarbonate / polyamide 6.6 housing

Direct 4-channel Pt/Ni resistance and potentiometer acquisition with automatic linearization and configurable 2/3/4-wire measurement.

Technical Specification Matrix

ParameterValue
Number of analog inputs4
Total number of channels (module)4
Signal typeResistance measurement; Potentiometer positions
Signal type (configurable)Yes
Sensor connection4 x (2-wire, 3-wire, 4-wire)
Data width4 x 16-bit data; 4 x 8-bit control/status (optional)
Resolution (over entire range)0.1 °C; 0.01 °C (–50 … 150 °C; Pt1000, Ni1000)
Conversion time (typ.)100 ms
Conversion time per channel≤ 100 ms (2-/4-wire connection), ≤ 200 ms (3-wire connection)
Measurement error (25 °C)≤ ±0.6 K (Pt100, Pt200, Pt500, Ni100, Ni120); ≤ ±0.2 K (Pt1000, Ni1000); ±0.3 … 0.7 Ω for resistance measurement
Measuring current (typ.)≤ 350 µA
Response time (max.)3 s
Sensor typesPt100; configurable: Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000 (TK6180 + TK5000), potentiometer: 10R … 1k2, 10R … 5k0
Temperature range−200 … +850 °C (Pt100, Pt200, Pt500, Pt1000), −60 … +250 °C (Ni100, Ni1000), −80 … +260 °C (Ni120)
Configuration optionsWAGO-I/O-CHECK; CODESYS Library; e!COCKPIT
Supply voltage (system)5 VDC; via data contacts
Current consumption (system supply)85 mA
Supply voltage (field)24 VDC (-25 … +30 %); via power jumper contacts
Isolation500 V system/field
IndicatorsLED (1-4) green: Status R1 … R4; LED (5-8) red: Error R1 … R4
Number of incoming power jumper contacts2
Number of outgoing power jumper contacts2
Connection technology: I/O16 x Push-in CAGE CLAMP®
Connectable conductor materialsCopper
Connection typeInputs/outputs
Solid conductor0.08 … 1.5 mm² / 28 … 16 AWG
Fine-stranded conductor0.25 … 1.5 mm² / 22 … 16 AWG
Strip length8 … 9 mm / 0.31 … 0.35 inches
Width12 mm / 0.472 inches
Height100 mm / 3.937 inches
Depth69 mm / 2.717 inches
Depth from upper-edge of DIN-rail61.8 mm / 2.433 inches
Mounting typeDIN-35 rail
Pluggable connectorfixed
Housing materialPolycarbonate; polyamide 6.6
Fire load0.819 MJ
Weight49 g
Protection typeIP20
Ambient temperature (operation)0 … +55 °C
Ambient temperature (storage)-40 … +85 °C
Pollution degree2 per IEC 61131-2
Operating altitude0 … 2000 m / 0 … 6562 ft
Relative humidity (without condensation)95 %
Vibration resistance4g per IEC 60068-2-6
Shock resistance15g per IEC 60068-2-27
Conformity markingCE

Industrial Applications

1. Multi-point RTD temperature monitoring in process skids

Use the module to acquire four Pt100/Pt1000 sensors directly on a DIN-rail I/O station with automatic linearization and 2/3/4-wire support.

Problem Solved

Eliminates external signal conditioners while maintaining accurate temperature acquisition across multiple RTD wiring schemes.

Pt100Pt1000automatic linearization4-channel analog input2-wire3-wire4-wire

2. Tank and vessel level feedback using potentiometers

The configurable resistance measurement channels can read three-wire potentiometers for position or displacement feedback on process equipment.

Problem Solved

Provides direct position measurement without a separate encoder interface when a resistive transducer is already installed.

potentiometerresistance measurement3-wireconfigurable sensor types24 VDC field supply

3. Hazardous-area remote I/O cabinet monitoring

With documented ATEX, IECEx, UKEx, and UL hazardous-location approvals, the module can be integrated into certified remote I/O architectures for temperature and resistance inputs.

Problem Solved

Supports compliant data acquisition in installations that require certified electronics and robust isolation.

ATEXIECExUKExhazardous locations500 V isolationIP20
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