Siemens 6ES5430-4UA14 Digital Input Module

Product Overview

The Siemens 6ES5430-4UA14 digital input module captures 16 discrete signals from field devices like sensors, switches, and pushbuttons. This module operates with a 24V DC nominal voltage and offers high noise immunity for stable data acquisition. It integrates seamlessly with the SIMATIC S5-115U, S5-130U, and S5-150U programmable controllers. The unit features electrical isolation between the backplane bus and the field wiring. This design protects the central CPU from potential electrical disturbances.

Technical Specifications

Parameter	Specification
Model Number	6ES5430-4UA14
Product Type	Digital Input Module
Brand	Siemens
Category	PLC Input Modules
Number of Inputs	16 channels
Nominal Voltage	24V DC
Suitable For	SIMATIC S5-115U, S5-130U, S5-150U
Electrical Isolation	Yes (between backplane and field)
Weight	Approximately 0.31 kg
Dimensions	233 mm x 25 mm x 158 mm (H x W x D)
Permitted Ambient Temperature (Operation)	0°C to 60°C
Permitted Ambient Temperature (Storage)	-40°C to 70°C

Key Features and Benefits

High Channel Density
This module packs 16 digital inputs into a compact single-width housing. This design saves valuable space inside the control cabinet. System integrators can connect numerous field devices without expanding the physical footprint.

Electrical Isolation
The 6ES5430-4UA14 provides galvanic isolation between the backplane bus and the input channels. This isolation blocks noise and voltage spikes from reaching the central processor. It enhances overall system reliability in electrically noisy industrial environments.

Wide Operating Temperature Range
This digital input module operates reliably from 0°C to 60°C and stores from -40°C to 70°C. These specifications make it suitable for diverse industrial settings. Facilities in extreme climates can depend on this module for consistent performance.

Installation and Compatibility

The module fits standard S5 rack systems and connects via the backplane bus. Its 25-pin connector simplifies field wiring and reduces installation time. The Siemens 6ES5430-4UA14 also supports hot-swapping in certain configurations. This feature minimizes downtime during module replacement or system expansion.