Siemens AS-Interface compact modules, 45 digital 4 DI Part number 3RK1200-0CQ20-0AA3

Product Overview

The Siemens 3RK1200-0CQ20-0AA3 is an AS-Interface compact digital input module from the K45 series, designed for decentralized field-level automation. It provides four digital inputs for connecting sensors and switching devices directly to an AS-i network. Housed in a rugged IP67 enclosure, the module supports reliable signal acquisition in harsh industrial environments and enables efficient distributed I/O architectures.

Key Features

• AS-Interface compact digital input module (K45 form factor)
• Four digital inputs for sensors and binary signals
• Rugged IP67 housing for field installation
• M12 connectors for fast and secure sensor connection
• Integrated LED indicators for input and diagnostic status
• Supports PNP input technology
• Compact, space-saving design for decentralized automation systems

Technical Specifications

• Article Number: 3RK1200-0CQ20-0AA3
• Product Family: AS-Interface compact I/O modules (K45)
• Module Type: Digital input module
• Number of Inputs: 4 digital inputs
• Connection Type: M12 sensor connectors
• Input Technology: PNP
• Sensor Supply Voltage: 20 to 30 V DC
• Addressing: AS-Interface addressing socket on the front
• Degree of Protection: IP67
• Mounting: Requires compatible K45 mounting plate

Compliance & Standards

• Designed for Siemens AS-Interface automation systems
• Meets Siemens requirements for decentralized digital I/O modules
• Suitable for industrial field-level installations

Applications

The Siemens 3RK1200-0CQ20-0AA3 digital input module is used to connect sensors, switches, and other binary field devices to an AS-Interface network. Typical applications include machine automation, conveyor systems, material handling equipment, and decentralized control systems where robust, compact, and field-mountable digital input modules are required.