Siemens 6ES5458-7LA11 Digital Output Module

This Siemens digital output module provides reliable switching for S5 automation systems. The Siemens 6ES5458-7LA11 drives up to 16 output channels for actuator control. Its robust design handles both inductive and resistive loads effectively. This module ensures precise on/off control for industrial applications.

Physical Dimensions and Mounting Specifications

The module measures 232 mm in height and 25 mm in width. Its overall depth reaches 160 mm including the front connector. This unit weighs approximately 0.5 kilograms for stable rack installation. The housing supports standard 35 mm DIN rail mounting in S5 racks. The Siemens 6ES5458-7LA11 features a 20-pin front connector for all output wiring. This connector accepts conductor cross-sections from 0.5 mm² to 2.5 mm².

Output Specifications and Electrical Characteristics

Each output channel provides a switching capacity of 2 A at 24 V DC. The total current per module reaches 8 A across all active channels. Output voltage ranges from 20.4 V to 28.8 V DC for reliable operation. The module draws a typical current of 100 mA from the backplane supply. The Siemens 6ES5458-7LA11 includes internal flyback diodes for inductive load protection. Each channel features short-circuit protection with automatic current limiting. An LED indicator shows the status of each individual output channel.

Isolation and Diagnostic Features

Optocoupler isolation separates the logic circuits from the output field wiring. This isolation withstands 500 V AC between the backplane and outputs. A common alarm output signals fault conditions for system monitoring. The module provides thermal protection against overload conditions. The Siemens 6ES5458-7LA11 includes a 100 nF filter capacitor for noise suppression. Output turn-on delay measures approximately 0.5 milliseconds for fast response. Turn-off delay reaches 1 millisecond for consistent switching performance.

Detailed Specification Table

Parameter	Specification
Dimensions (H x W x D)	232 mm x 25 mm x 160 mm
Weight	Approx. 0.5 kg
Number of Outputs	16
Output Voltage Range	20.4 V to 28.8 V DC
Output Current per Channel	2 A (max)
Total Module Current	8 A (max)
Backplane Current Draw	100 mA (typical)
Connector Type	20-pin front connector
Wire Cross-Section	0.5 mm² to 2.5 mm²
Isolation Voltage	500 V AC
Turn-on Delay	Approx. 0.5 ms
Turn-off Delay	Approx. 1.0 ms
Filter Capacitance	100 nF
Protection Features	Short-circuit, thermal
Operating Temperature	0°C to 60°C

Application and Wiring Guidelines

Mount this module in any available slot of the S5 rack system. Connect the output devices to the designated terminals on the front connector. Use twisted-pair cables for long-distance wiring to reduce interference. The Siemens 6ES5458-7LA11 operates effectively between 0°C and 60°C. Ensure adequate clearance around the module for proper heat dissipation. Wire the common return line to the 24 V DC ground terminal. Install suppression diodes across inductive loads for extended contact life. Verify the output polarity matches the connected device requirements.