Product Overview
The Siemens 6ES7921-5CH20-0AA0 is a front connector module designed for SIMATIC S7-1500 digital 32 I/O modules, featuring a single 50-pole IDC (Insulation Displacement Connector) for streamlined cable connections. This specialized module provides potential supply over push-in terminal technology and represents a modified front connector solution for digital I/O applications. The module is part of the fully modular SIMATIC TOP connect system, enabling fast and safe system cabling for advanced digital automation installations.
Key Features
Technical Specifications
Applications
This front connector module is specifically engineered for digital signal processing applications in SIMATIC S7-1500 systems. It enables efficient connection of 50-pole cables to digital I/O modules, facilitating reliable switching and monitoring of digital signals in factory automation, process control, building automation, machine control, and other industrial applications requiring fast and secure digital I/O connectivity.
System Integration Benefits
Installation Advantages
The module plugs directly into the digital I/O module, replacing the standard front connector. Cable connections are made via the 50-pole IDC connector, which accommodates connecting cables that link to connection modules. The push-in terminal technology provides integrated potential supply without requiring tools, significantly reducing installation time while ensuring secure connections.
Push-in Terminal Technology
The integrated push-in terminals offer significant advantages over traditional screw terminals, including tool-free installation, faster wiring, consistent connection quality, and reduced maintenance requirements. This technology is particularly beneficial in applications requiring frequent system modifications or expansions.
SIMATIC TOP Connect System
This front connector module is a crucial component of Siemens' SIMATIC TOP connect fully modular connection system. The system delivers fast and safe system cabling for digital applications, dramatically reducing installation complexity while improving system reliability. Sensors and actuators are connected to SIMATIC TOP connect connection modules and linked to the S7-1500 system via connecting cables and this front connector module.
Performance Characteristics
Compliance & Certifications
Product Status
This is an active product (PM300) with ongoing availability and full technical support from Siemens.
Download existing graphical data for this product:
| Compliance/Standards | IEC 81346-2 |
| Part Width (mm) | 5,00mm |
| Part Height (mm) | 13,30mm |
| Part Depth (mm) | 3,40mm |
| Weight (g) | 0,080 Kg |
| description | Front connector module with 1x50 pole IDC connector for digital 32 I/O modules of the S7-1500 Potential supply over Push-in terminal |
| country_of_origin | Romania |