WAGO 750-492

WAGO 750-492 – 2 AI 4-20 mA Differential Input

Overview

The WAGO 750-492 module has two differential analog input channels, each handling 4-20 mA current signals. Each channel is electrically isolated. The module uses successive approximation conversion with continuous sampling, provides diagnostic features for overflow, underflow and wire faults, and displays status via LEDs. It is suitable for precise current-signal measurement in industrial automation systems.

Key Features

• Two differential current input channels (4-20 mA)

• Electrically isolated inputs per channel

• 13-bit effective resolution

• Continuous sampling operating mode

• Diagnostic feedback: underflow, overflow, wire break indicated by LED and status bits

• Low-pass input filter (1st order) with cutoff frequency fₙ = ~5 kHz

• Admissible continuous signal overload up to 30 V

• Shield connection via DIN-rail

Technical Specifications

Part Number: 750-492
Number of Analog Inputs: 2 (differential)
Signal Type: 4 … 20 mA current
Sensor Connection: 2 × 2-wire differential inputs
Resolution: 13 bits (measured value)
Data Format: 2 × 16-bit data; optional 2 × 8-bit control/status
Input Resistance (max): ≤ 270 Ω at 20 mA
Input Filter: Low-pass, first-order, cutoff approx. 5 kHz
Admissible Continuous Overload: 30 V
Crosstalk Attenuation: ≥ 80 dB
Operating Mode: Continuously sampling
Power Supply: 5 VDC system supply (via internal power contacts)
Current Consumption (System Supply): ~80 mA
Operating Temperature: 0 °C … +55 °C
Storage Temperature: -40 °C … +85 °C
Width: approx. 12 mm
Height (from top edge of DIN-35 rail): approx. 64 mm
Depth: approx. 100 mm
Protection Rating: IP20

Applications

• Precise measurement of 4-20 mA signals from sensors or transmitters

• Industrial automation environments where differential inputs are required to reduce noise and improve measurement quality

• Systems needing diagnostics per input channel to detect wire faults or out-of-range signals

• Mixed-signal control panels where compact, accurate analog input modules are needed

Why Choose the WAGO 750-492

• Differential input design improves accuracy and noise immunity over long wiring

• Diagnostic indicators assist with maintenance and early fault detection

• Good resolution ensures fine granularity in signal capture

• Compact form factor saves space while still providing high performance

Order Now

The WAGO 750-492 is part of the WAGO I/O System 750 product line and is available for purchase. Ships worldwide.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply