Product Description

Overview

The ABB 1MRK002266-AA is a precision Analog Input Module (TRM) designed for ABB Relion 650/670 series IEDs, including RED670, REL670, and RET670. It serves as the primary interface for current and voltage signals from instrument transformers, providing accurate scaling, galvanic isolation, and reliable signal conversion for protection and metering applications.

Technical Features

High-Fidelity Signal Conversion

The module delivers highly linear current and voltage conversion across a wide dynamic range, supporting both steady-state and fault-level measurements with minimal phase displacement. This ensures accurate performance in applications like line differential and distance protection.

Galvanic Isolation and Robust Protection

• Dielectric strength ensures separation between high-voltage inputs and internal electronics

• Built-in immunity to transients and electromagnetic interference

• Supports long-term reliability under high-voltage environments

Frequency and Harmonic Support

• Compatible with 50 Hz and 60 Hz networks without hardware modifications

• Wide bandwidth suitable for harmonic monitoring and disturbance recording

Dynamic Range and Overload Capability

• Continuous current ratings: 1 A or 5 A selectable

• Fault current handling: up to 100× rated current for 1 second

• Maintains protection accuracy during transient overloads

Operational Stability

• Operating temperature: -25°C to +70°C

• Integrated self-monitoring for early detection of hardware anomalies

• High measurement stability over temperature fluctuations

Specifications

Application

The 1MRK002266-AA module is ideal for applications requiring synchronized voltage and current measurement, such as distance protection, line differential schemes, and power quality monitoring. It is suited for complex high-voltage switchyard environments and critical protection schemes.

FAQ

Q: Can this module handle high fault currents without saturation?
A: Yes, it is designed for up to 100× rated current for 1 second, maintaining accurate protection measurements.

Q: Is it compatible with both 50 Hz and 60 Hz systems?
A: Yes, the module operates without hardware changes in both frequency systems.

Q: Which IEDs are supported?
A: RED670, REL670, RET670, and other Relion 650/670 series devices.