The ABB 1MRK002266-AAR00 (also cataloged as 1MRK002266AAR00) is a high-reliability, substation-grade Optical Ethernet Communication Module designed specifically for the ABB Relion family of protection and control intelligent electronic devices (IEDs).
Technical Specifications
Manufacturer: ABB (Asea Brown Boveri)
Part Number Designation: 1MRK002266-AAR00
Product Lifecycle Status: Discontinued by Manufacturer (Available as a high-demand factory legacy spare)
Product Type Class: Optical Ethernet Interface Module / Communication Card
System Integration Platform: ABB Relion Series Protection Relays
Control Category: Programmable Logic Controllers (PLCs) / Machine Control Infrastructure
Communication Medium: Fiber Optic Cabling (Optical Ethernet)
Primary Scope Protocol: Native support for high-speed IEC 61850 substation automation messaging, DNP3, and Modbus TCP networks over fiber
Data Transmission Feature: Absolute protection against lightning transients, cross-talk, and induced high-voltage surge noise
Net Hardware Unit Weight: 0.46 lbs (Approx. 0.21 kg)
Industrial Application Scenarios
The ABB 1MRK002266-AAR00 card is slid directly into the dedicated rear communication slots of Relion series relays mounted inside high-voltage electrical substations, generation plant control bays, and industrial switchgear enclosures.
In utility-scale power transmission grids, this optical module serves as the primary data highway connecting individual bay protection devices to the station's central network switches. Because substations feature massive magnetic fields from transformers and high-voltage circuit breakers that can distort copper network signals, the 1MRK002266-AAR00 uses fiber links to send critical time-critical logs, diagnostic flags, and high-speed GOOSE trip commands. This ensures rapid data routing back to the SCADA system without risking signal corruption during major electrical faults.
