ABB DSTA 191 Connection Unit

Product Overview

The ABB DSTA 191 is a high-performance connection unit designed for industrial automation and process control systems. This module provides reliable electrical connections between various I/O modules, sensors, and actuators in a control system, ensuring safe, stable, and efficient signal transmission. DSTA 191 features a compact structure and easy installation, suitable for control cabinets and field installations.

Detailed Specifications

• Model / Part Number: DSTA 191

• Type: Connection Unit

• Interface Type: Digital and analog signal interfaces

• Number of Channels: 16~32 channels (depending on configuration)

• Rated Voltage: 24 VDC

• Rated Current: Max. 2 A per channel

• Operating Temperature: 0°C ~ +55°C

• Storage Temperature: –20°C ~ +70°C

• Protection Class: IP20

• Mounting: DIN-rail or modular control cabinet installation

• Standards Compliance: IEC 61131, CE, UL

Key Advantages & Features

• Reliable connections: Ensures stable signal transmission in control systems

• Multi-channel support: Centralized connection for multiple I/O modules

• Modular design: DIN-rail mounting allows easy expansion and maintenance

• Industrial-grade durability: Suitable for high-temperature, high-humidity, and industrial environments

• High compatibility: Supports ABB controllers, I/O modules, and sensors

• Space-saving wiring: Centralized connection reduces cable clutter

Applications

• Industrial automation control systems

• Centralized I/O connections for DCS, PLC, and SCADA systems

• Power, petrochemical, metallurgical, pharmaceutical, and water treatment industries

• Production line equipment and instrumentation interfaces

• Modular control cabinet internal connections and signal distribution

Precautions

1. Ensure the connection unit interfaces are compatible with modules and sensors before installation.

2. Power off before installation or maintenance to prevent module or device damage.

3. Avoid high humidity, temperature, and corrosive environments to extend service life.

4. Regularly check wiring and terminals to ensure reliable signal transmission.

5. Do not exceed rated voltage and current to prevent module damage.

6. Installation, commissioning, and maintenance should be perf