The Siemens 6ES5458-4UA13 is a high-density digital output module designed for the SIMATIC S5-135U and S5-155U programmable logic controller systems. This module provides 16 electrically isolated relay outputs, allowing for the reliable switching of field-side loads up to 60 VDC. It is specifically engineered to provide robust galvanic isolation between the PLC backplane and external field devices, protecting sensitive control logic from electrical noise, transients, and potential short-circuit propagation in demanding industrial environments.
Features
High Channel Density: Features 16 independent relay output channels within a single standard S5 module footprint.
Galvanic Isolation: Integrated isolation barriers prevent field-side electrical faults from impacting the internal S5 bus.
Flexible Switching: Dry-contact relay outputs support versatile control of external actuators and signaling devices.
Industrial Durability: Designed for reliable operation in harsh environments, including power generation and process automation facilities.
Technical Specifications
Model
6ES5458-4UA13
Product Family
SIMATIC S5-135/155U
Output Type
Relay (Dry Contact)
Number of Channels
16
Max Switching Voltage
60 VDC
Max Current per Channel
0.5 A
Power Consumption
3.5 W (Internal Backplane)
Operating Temperature
0 to 60 deg C
Storage Temperature
-40 to 70 deg C
Installation Guidelines
Power Down: Always disconnect power from the S5 rack and field terminal blocks before inserting or removing the module.
ESD Precautions: Use a grounded wrist strap when handling the module to prevent electrostatic discharge damage to internal components.
Wiring: Ensure field wiring is properly routed and secured to terminal blocks. Use shielded cables for field signals to minimize EMI interference.
Mounting: Ensure the module is fully seated in the designated S5 rack slot and that the locking mechanism is engaged to maintain proper backplane connection.
Ventilation: Maintain adequate clearance around the PLC rack to ensure proper airflow and heat dissipation, keeping within the 0 to 60 deg C operating range.
FAQ
What is the primary function of the 6ES5458-4UA13?
This module acts as a digital output interface for the Siemens S5-135/155U PLC, providing 16 isolated relay contacts to switch external loads up to 60 VDC.
Is this module compatible with other S5 series PLCs?
The 6ES5458-4UA13 is specifically designed for the S5-135U and S5-155U platforms. Please verify your specific rack and CPU configuration before installation.
Does this module require external power for the relays?
The relay contacts are dry-contact outputs; however, the field-side load circuit must be powered according to the voltage and current specifications provided in the technical data.
