Siemens 6ES7141-4BF00-0AB0 Input Module

This digital input module acquires 24 VDC signals from field devices for Siemens ET 200X distributed I/O systems. It monitors pushbuttons, limit switches, and proximity sensors in industrial automation applications. The module’s IP65/IP67 housing suits harsh environments requiring protection against dust and moisture.

Input Configuration and Electrical Specifications

The Siemens 6ES7141-4BF00-0AB0 features four digital inputs, each with a nominal voltage of 24 VDC. Each channel delivers a typical input current of 7 mA and features a voltage protection mechanism. The module provides a reverse polarity protection on all input signals for robust field connectivity. It draws a maximum current of 35 mA from the 24 VDC power supply. The module also consumes 25 mA from the internal 5 VDC backplane bus for its operation.

Technical Specifications

Specification	Detail
Model	6ES7141-4BF00-0AB0
Product Type	Digital Input Module
System Compatibility	Siemens ET 200X
Number of Inputs	4
Input Type	Digital
Nominal Voltage	24 VDC
Input Current per Channel	7 mA (typical)
Input Delay (Off to On)	3.0 ms
Input Delay (On to Off)	3.0 ms
Protection	Reverse polarity
Galvanic Isolation	Yes
Module Current Consumption (24V)	35 mA
Internal Current Draw (5V)	25 mA
Protection Class	IP65/IP67
Dimensions	112 × 60 × 39 mm
Weight	0.5 kg
Mounting	Wall mounting
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Humidity	5% to 95% non-condensing
Certifications	CE, UL

Wiring and System Integration

This module mounts onto the ET 200X distributed I/O system for decentralized control applications. Its IP65/IP67 protection class allows direct mounting in production areas without additional enclosure. The module connects to field devices via M12 connectors for quick and secure wiring. These connectors simplify installation and reduce wiring errors in the field. The module’s compact design saves space in distributed automation systems.

Application Use

Machine mounting and conveyor systems benefit from this module’s robust construction. Material handling equipment and production lines in dusty or wet environments use this module frequently. Automotive assembly plants and food processing facilities rely on this module for distributed I/O. Its quick-disconnect connectors simplify maintenance and reduce downtime during repairs. The module’s small footprint allows flexible placement in tight installation spaces.