ABB 1MRK002122-ABR02 Digital protection relay

Product Overview

The ABB 1MRK002122-ABR02 is a digital protection relay from ABB’s Relion® product family, specifically designed for advanced power system protection and automation. It is part of the REF615 series, a compact and versatile Intelligent Electronic Device (IED) tailored for feeder and motor protection in medium-voltage (MV) and low-voltage (LV) networks. This relay ensures reliable operation, fault detection, and seamless integration into modern industrial and utility grids.

Key Features

1. Advanced Protection Functions
   • Overcurrent protection (directional/non-directional).
   • Earth fault protection (sensitive/residual current).
   • Motor protection features: thermal overload, locked rotor, stall protection, and phase unbalance.
   • Short-circuit and arc flash detection (optional).
2. Automation & Control
   • Programmable logic (PLC-like functionality) for custom automation sequences.
   • Circuit breaker control and autoreclosing.
   • Load shedding and load restoration capabilities.
3. Communication & Integration
   • Supports industry-standard protocols: IEC 61850, Modbus RTU/Modbus TCP, DNP3, and IEC 60870-5-103/104.
   • Ethernet and RS485 communication ports for SCADA, HMI, or control system integration.
   • Synchrophasor measurement (PMU) for grid stability monitoring.
4. User Interface & Configuration
   • Intuitive local HMI (Human-Machine Interface) with a graphical display.
   • Configurable via ABB’s PCM600 software for parameterization, testing, and diagnostics.
   • Event logging, disturbance recording, and waveform capture for post-fault analysis.
5. Robust Design
   • Compact, modular design for easy installation in switchgear panels.
   • Wide operating temperature range (-40°C to +70°C) and high immunity to EMI/RFI.
   • Certifications: IEC 60255, IEEE C37.90, and UL 508.

Technical Specifications

• Rated Voltage: Up to 690 V AC (depending on configuration).
• Current Inputs: 1 A or 5 A nominal (configurable).
• Protection Functions: 50/51 (overcurrent), 50N/51N (earth fault), 49 (thermal overload), etc.
• Power Supply: 24–250 V DC or 48–265 V AC.
• Mounting: Panel-mounted or DIN rail.

Typical Applications

• Industrial Power Systems: Feeder protection in factories, data centers, and mining operations.
• Renewable Energy: Integration into solar/wind farms for grid connection protection.
• Infrastructure: Substations, distribution networks, and building automation systems.
• Motor Control Centers (MCCs): Safeguarding critical motors in HVAC, pumps, and compressors.

Certifications & Compliance

• Compliant with IEC 61850 for interoperability in smart grids.
• Meets IEC 60255 (protection relays) and UL 508 (industrial control equipment).
• RoHS and REACH compliant.

Benefits

• Enhanced Grid Reliability: Fast fault detection and isolation minimize downtime.
• Future-Proof Design: Supports digital substation protocols (IEC 61850) for smart grid readiness.
• Cost Efficiency: Reduces wiring complexity and enables predictive maintenance.

Ordering Information

• Part Number: 1MRK002122-ABR02
• Series: REF615 feeder protection relay.