ABB 1MRK002122-ABr01 Binary Input/Output Module

Overview

The ABB 1MRK002122-ABr01 is a compact and dependable binary input/output module engineered for modern industrial automation and electrical protection systems. It connects control platforms with field devices through stable digital signal processing, ensuring accurate monitoring and quick operational response. Moreover, the module supports continuous system reliability, which benefits maintenance teams working in demanding industrial environments.

Designed for DIN-rail mounting, the unit integrates smoothly into control panels where space efficiency and wiring clarity matter. In addition, its robust construction withstands temperature variations, mechanical vibration, and electrical noise, making it suitable for long-term use in critical applications.

Key Features

• Supports multiple digital inputs and outputs for flexible system configuration

• Enables precise signal interfacing between automation controllers and field equipment

• Offers stable 24 V DC operation for consistent performance under load conditions

• Provides strong resistance to vibration, electromagnetic interference, and industrial noise

• Simplifies integration with a compact, service-friendly layout and screw-terminal connections

• Helps technicians achieve quick diagnostics through reliable signal status feedback

Technical Specifications

Electrical & Performance

• Voltage Rating: 24 V DC

• Rated Current: 1 A

Mechanical Data

• Dimensions: 90 × 180 × 70 mm

• Weight: 0.172 kg

• Mounting: DIN-rail

• Terminals: Screw type

• Protection Class: IP20

Environmental Conditions

• Operating Temperature: –20 °C to +60 °C

Typical Applications

The ABB 1MRK002122-ABr01 integrates easily into diverse control architectures, and it delivers predictable performance during continuous operation. Therefore, organizations in high-demand sectors often rely on this module to improve automation reliability.

Typical use cases include:

• Factory and process automation requiring stable digital signal handling

• Electrical distribution systems focused on switching, monitoring, and fault detection

• HVAC and building energy management platforms

• Machine automation requiring start/stop logic, safety interlocks, and system feedback

• Process industries including chemical, petrochemical, and manufacturing plants

Support & Maintenance

Routine inspections ensure long-term performance, and the module’s simple mechanical design allows quick replacement during scheduled maintenance. Moreover, ABB’s global support network enables fast access to technical expertise, which reduces downtime during troubleshooting and upgrades.

FAQ (Text Version)

Q1: What control systems are compatible with the ABB 1MRK002122-ABr01?
The module works with most ABB protection and automation systems, and it also integrates easily with third-party PLCs using standard 24 V DC digital I/O connections.

Q2: Does the module support both input and output signals?
Yes, it handles binary inputs and outputs, allowing flexible configuration for automation and protection tasks.

Q3: Can the module operate in harsh industrial environments?
Yes, it tolerates vibration, electrical noise, and wide temperature ranges, which ensures stable operation in challenging industrial settings.

Q4: Is the ABB 1MRK002122-ABr01 easy to install?
Its DIN-rail form factor and screw-terminal layout allow fast installation, and technicians can perform wiring without special tools.

Q5: What is the primary benefit of using this module in protection systems?
It provides reliable signal monitoring and switching, which supports accurate fault detection and helps maintain system safety.