WAGO 750-430 8-Channel Digital Input Module

Technical Overview

8-channel digital input module (24VDC) with 3ms filter and 500V electrical isolation. DIN-rail mount.

Key Features

8-channel digital input
24 VDC nominal voltage via power jumper contacts
High-side switching input characteristic
3 ms input filter for effective noise rejection
Field and system levels are electrically isolated by 500V
CAGE CLAMP® connection technology for secure wiring
35mm DIN-rail mounting for easy integration
IP20 degree of protection
Approved by UL 508, ANSI/ISA 12.12.01, and ATEX/IECEx standards
Operating temperature range of 0°C to 55°C
Housing material: Polycarbonate, polyamide 6.6

Technical Specification Matrix

Parameter	Value
Number of digital inputs	8
Nominal Voltage	24 VDC (-25% to +30%)
Signal voltage (0)	-3 VDC to 5 VDC
Signal voltage (1)	15 VDC to 30 VDC
Internal current consumption (5 V system supply)	17 mA
Typical input current (per channel for signal 1)	2.8 mA
Input filter	3.0 ms
IP Rating	IP20
Operating Temperature	0°C to 55°C
Storage Temperature	-40°C to 85°C
Housing Material	Polycarbonate, polyamide 6.6
Connection Technology	CAGE CLAMP®
Mounting Type	DIN-35 rail
Isolation	500 V system/field
Input Characteristic	High-side switching
Physical Weight (kg)	0.05
Dimensions L x W x H (cm)	6.78 x 1.2 x 10

Industrial Applications

1. Industrial Process Control with Sensor Integration

This module seamlessly integrates into PLC systems to acquire precise signals from diverse digital field devices, such as proximity and limit switches, across manufacturing and process plants. Its eight channels facilitate efficient multi-point monitoring, ideal for complex industrial environments.

Problem Solved

Enables reliable and electrically isolated acquisition of on/off signals from industrial sensors. The 3ms input filter actively rejects noise, while 500V electrical isolation protects the control system from field-side electrical disturbances, ensuring stable and safe operation.

PLCdigital inputindustrial sensors24VDCelectrical isolationnoise rejectionfactory automation

2. Building Automation for Lighting and HVAC Control

The WAGO 750-430 acts as a robust interface for reading various switch states, including light switches, occupancy sensors, and window contacts, within building management systems. Its compact design allows for convenient integration into control cabinets in commercial or residential buildings.

Problem Solved

Provides a robust, multi-channel solution for converting discrete inputs from building infrastructure into reliable signals for a central controller. Its IP20 rating ensures suitability for typical indoor environments, and the high-side switching is commonly used in such building control applications.

Building Management System (BMS)digital inputlighting controlHVACswitch monitoring24VDC

3. Machine Safety and Interlock Monitoring

Within machinery, this module is crucial for monitoring safety-related digital inputs, such as emergency stop buttons, guard door interlocks, and pressure switches, thereby ensuring the safe and compliant operation of industrial equipment.

Problem Solved

Offers a highly reliable and electrically isolated method to read critical safety signals from machine components. The 24VDC operating voltage is standard for safety circuits, and the rapid 3ms input filter guarantees timely detection of status changes, enabling quick and effective safety responses.

Machine safetyemergency stopinterlockdigital input24VDCelectrical isolationsafety integrity level