6ES7421-7BH01-0AB0 SIEMENS Exclusive SIMATIC S7-400 Digital Input Module Original Brand New

6ES7421-7BH01-0AB0 SIEMENS Exclusive SIMATIC S7-400 Digital Input Module Original Brand New

The 6ES7421-7BH01-0AB0 is a digital input module developed by SIEMENS for the SIMATIC S7-400 automation platform. It features 16 electrically isolated digital inputs designed to operate at 24 V DC. With an impressively fast input delay of just 0.05 milliseconds, this module ensures rapid and reliable signal detection in time-sensitive applications.

Designed to handle complex automation tasks, the module includes built-in alarm and diagnostic functions. These features help users monitor system status and detect faults quickly, minimizing potential downtime. Whether used in manufacturing, infrastructure, or process control systems, the module delivers stable and consistent input processing.

Each input channel is clearly indicated by a green LED that reflects the current signal state. In addition, red LEDs are integrated to signal internal or external faults. These indicators make troubleshooting faster and help improve overall system visibility.

Encased in a durable industrial-grade plastic housing, the unit offers both strength and compactness. The module is wired using a plug-in front connector, simplifying installation and maintenance tasks. Clear labeling strips are included, making it easy to identify each input channel and reducing the likelihood of wiring errors.

Overview

• Digital input module for SIMATIC S7-400 systems
• 16 isolated digital inputs at 24 V DC
• Extremely fast 0.05 ms input delay
• Integrated alarm and diagnostics support
• Connects switches and 2-wire proximity sensors (BEROs)

Design

• Compact and rugged plastic housing
• Green LEDs for real-time signal monitoring
• Red LEDs for fault and error indication
• Labeling strips for easy channel identification
• Plug-in front connector for quick and simple wiring

Product Code: 6ES7421-7BH01-0AB0

More Siemens products at Turll.com