ABB 1MRK000284-AA Binary Input Module

Description

The ABB 1MRK000284-AA is a binary input module from the Relion® series, engineered for precise signal acquisition in high-reliability environments such as power substations, process plants, and distributed control systems. It accurately detects binary states like open/closed contacts, pushbutton activations, and relay positions across a wide voltage range. Each input channel is galvanically isolated, protecting the system from electrical noise and transient faults. The module also supports real-time monitoring, event logging, and alarm triggering, making it suitable for safety-critical applications. Its compact and modular design allows seamless integration into ABB protection relays and control cabinets. Engineers value its robust construction, long service life, and IEC standard compliance.