Siemens 6ES5490-8MB21 front connector

Product manual:

Siemens 6ES5490-8MB21 is the front connector module of Siemens S5 series PLC. This module is used to provide front-end connection interfaces for various modules of the PLC, ensuring electrical connections with other modules or external devices.
Main features:
Series: S5 Series
Model: 6ES5490-8MB21
Type: Front connector
Function: Provides a front-end connection interface with PLC modules for connecting signal lines or cables.
Functional features:
Interface function: As the front connector of the PLC module, it is used to connect signal lines or cables to the front of the PLC module for easy wiring and maintenance.
Module compatibility: Designed to work with standard modules from the Siemens S5 series to ensure compatibility and stability.
Easy to install: Front connector modules typically have a design that is easy to install and remove, making the connection and replacement process more efficient.
Application scenarios:
Industrial automation: used in PLC control systems to connect signal lines between PLC modules and external devices.
Device Connection: Used to connect and manage cables between multiple PLC modules and external devices, supporting complex control systems.
System maintenance: Simplify the connection between PLC modules and external devices for easy maintenance and system expansion.
Technical parameters:
Applicable modules: Compatible with digital and analog input/output modules of the S5 series.
Connection method: The front connector usually uses screw type or spring type terminal blocks to provide a stable connection.
Electrical performance: The design ensures good electrical contact and signal transmission, reducing interference and signal loss.
Usage precautions:
Wiring specifications: Connect wires according to the connector's wiring diagram to ensure correct and reliable electrical connections.
Installation inspection: Ensure that the front connector module is securely installed and the wiring terminals are not loose.
Maintenance management: Regularly check the connection status, keep the connection clean, avoid signal interference and connection failures.

Product details picture:

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