Siemens Front connector module with flat ribbon cable connection

Product Overview

The Siemens 6ES7921-3AF00-0AA0 is a front connector module designed for SIMATIC S7-300 analog modules, featuring flat ribbon cable connection with spring terminal power supply. Part of the SIMATIC TOP connect system, this module enables streamlined cabling and reduced installation complexity for analog I/O applications.

Key Features

• Flat Ribbon Cable Connection: Organized signal routing for analog modules
• Spring Terminal Power Supply: Tool-free installation and connection
• S7-300 Analog Compatibility: Specifically designed for analog I/O modules
• SIMATIC TOP Connect: Modular connection system for enhanced reliability
• Ultra-Lightweight: Compact design at only 0.066 kg
• Plug-and-Play: Direct replacement for standard front connector

Technical Specifications

• Compatible Systems: SIMATIC S7-300 analog modules
• Connection Technology: Flat ribbon cable interface
• Power Supply: Spring terminals
• Conductor Cross-sections: 0.25 mm² (fine-strand)
• Weight: 0.066 kg
• Packaging Dimensions: 4.00 x 13.50 x 2.80 cm
• Operating Temperature: 0°C and above
• Country of Origin: Poland
• EAN: 4025515065784
• UPC: 662643302158

Applications

Engineered for analog signal processing in SIMATIC S7-300 systems including process automation, temperature monitoring, pressure sensing, flow control, and level measurement applications requiring high signal integrity and reliable connections.

System Integration Benefits

• Error Reduction: Minimizes wiring errors and installation mistakes
• Fast Installation: Tool-free spring terminals reduce installation time
• Signal Integrity: Flat ribbon cable design ensures optimal analog signal transmission
• Space Efficiency: Compact design optimizes cabinet space utilization
• Maintainability: Simplified troubleshooting and system modifications

SIMATIC TOP Connect System

Part of Siemens' SIMATIC TOP connect modular connection system, delivering efficient system cabling for analog applications. The system reduces installation complexity while improving reliability through organized flat ribbon cable connections and tool-free spring terminal technology.

Compliance & Certifications

• RoHS Compliant: Since 24.02.2014
• WEEE Compliance: Take-back obligation applicable
• REACH Regulation: Contains lead (safe for intended use)
• Export Control: AL: N / ECCN: N

Important Note

This product is in phase-out status since 01.10.2023. Consider current generation SIMATIC TOP connect solutions for new installations.

Download existing graphical data for this product:

• Product Datasheet
• 3D Models and Installation Drawings
• CAD Models - Siemens PARTcommunity
• SIMATIC TOP Connect System Information
• Technical Documentation Support
• Official Product Page