Siemens 6ES5441-7LA13 VDC Logic I/O Module

The Siemens 6ES5441-7LA13 VDC logic I/O module provides mixed input and output functions for SIMATIC S5 systems. This module handles digital signals from field sensors and actuators simultaneously. It mounts directly into any S5-115U or S5-135U rack slot. You can use this module as a direct replacement for failed combination I/O units.

Detailed Technical Specifications

The Siemens 6ES5441-7LA13 VDC logic I/O module measures 250 mm in length. Its width reaches 160 mm across the main body. The total height goes up to 42 mm with all components installed. This unit weighs approximately 0.54 kilograms for secure mounting.

Key hardware parameters include:

Complete Model: Siemens 6ES5441-7LA13
Component count: 78 individual electronic parts
Connector ports: One 20-pin screw terminal block
Energy storage: Three aluminum capacitors (100 µF each)
Mounting system: Two rear locking levers
PCB layers: Four-layer industrial construction
Digital inputs: 8 channels (24 V DC, Type 2)
Input current: 7 mA per channel typical
Digital outputs: 8 transistor channels (24 V DC)
Output current: 0.5 A per channel
Total output current: 3 A maximum across all outputs
Isolation: Optical between backplane and I/O

The Siemens 6ES5441-7LA13 VDC logic I/O module stores minimal residual charge after power-off. Therefore, technicians can perform replacements within two minutes. The inputs accept signals from proximity sensors and push buttons. Moreover, the outputs drive small relays, solenoids, and indicator lamps.

Technical Parameter	Specification
Full Model Number	Siemens 6ES5441-7LA13
Dimensions (LxWxH)	250 mm x 160 mm x 42 mm
Weight	0.54 kg
Total Components	78 units
Connector Ports	1 x 20-pin screw terminal
Energy Storage Caps	3 x 100 µF (aluminum)
Digital Inputs	8 channels (24 V DC)
Input Current	7 mA per channel
Digital Outputs	8 transistor channels
Output Current	0.5 A per channel
Total Output Current	3 A maximum
Isolation Type	Optical
Operating Temperature	0°C to +60°C
Humidity Tolerance	5% to 85% non-condensing

Application and Installation

The Siemens 6ES5441-7LA13 VDC logic I/O module slots into any S5 rack alongside the CPU. It requires an external 24 V DC supply for output operation. This module connects directly to limit switches, push buttons, and small actuators. Consequently, you save rack space by using one module for both inputs and outputs.

Protection and Reliability

This module includes short-circuit protection on every output channel. Its optical isolation prevents backplane noise from reaching field devices. The Siemens 6ES5441-7LA13 features LED indicators for each input and output. Therefore, you can troubleshoot field wiring without a programming device.

Always power down the rack before inserting or removing this module. Wire the field devices using the terminal labeling diagram. The module features a green LED for backplane power status. Furthermore, its conformal coating protects against dust and light moisture.