Original ABB 1MRK002122‑ABR00 fiber optic communication module for Relion series IED protection relays, substation automation spare part.

Product Overview

1MRK002122‑ABR00 is LDCM optical data communication module for ABB Relion protection and control IED devices. It realizes long‑distance optical fiber data transmission between protection relays, effectively eliminates electromagnetic interference and ground loop problems in substation environment, supports power system communication protocols, widely used as maintenance spare part for power plant, substation automation and medium‑voltage protection system

Key Features

• Short‑range multimode fiber optical communication interface, anti‑EMI interference for substation harsh environment
• Galvanic isolation between optical port and internal relay logic circuit
• Plug‑in slot‑mount design for Relion series protection relay internal slot
• Supports reliable data interaction between multiple IED intelligent electronic devices
• Compact lightweight structure, easy installation and on‑site replacement

• Complies with IEC and IEEE substation equipment environmental standards

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Technical Specifications

• Brand: ABB
• Model: 1MRK002122‑ABR00
• Module Type: LDCM Optical Communication Module
• Transmission Media: Multimode optical fiber
• Max Transmission Distance: Up to 2km
• Power Supply: Powered via relay internal backplane
• Isolation Voltage: 1500V RMS dielectric isolation
• Weight: Approx 0.12kg
• Operating Temp: ‑20℃ ~ +60℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing

• Installation: Internal slot plug‑in for protection relay

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Compatibility

Suitable for ABB Relion REF615, REF620 series protection IED devices. Corresponding communication parameter configuration is required after module replacement