Original ABB RCM current input module for Relion protection relay, substation protection spare part.

Product Overview

N93‑3005‑05 1MRK002311‑AAR11 is RCM plug‑in current input module for ABB Relion protection and control IED. It collects secondary current signals from current transformers, transfers measured data to relay main board, provides galvanic isolation for CT secondary circuit. It ensures reliable current data acquisition for protection logic, widely used as maintenance spare part for power plant and substation relay‑protection systems.

Key Features

• Multi‑channel CT secondary current signal acquisition
• Galvanic isolation between external CT circuit and internal IED circuit
• Slot plug‑in structure for Relion protection relay internal slot
• On‑board LED indicators for module running and fault status
• High anti‑interference performance for substation electromagnetic environment

• Complies with IEC power protection equipment standards, easy field replacement

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Technical Specifications

• Brand: ABB
• Model: N93‑3005‑05, 1MRK002311‑AAR11
• Module Type: RCM Current Input Module
• Input Source: Current transformer secondary signal
• Isolation: Galvanic isolation
• Power Supply: Relay internal backplane bus powered
• 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

Compatible with ABB Relion REF615, REF620, REG670 series IED. CT circuit inspection and parameter configuration are required after module replacement.