The Honeywell 2MLI-A21A-CC is a robust 8-point digital input module tailored for MasterLogic-200 and ML200R PLC systems. Engineered for industrial-grade performance, it supports AC 220 V signal acquisition with photo-coupler isolation to ensure noise immunity and safety. Built with conformal-coated protection, this module delivers consistent and reliable performance in harsh environments—ideal for integrating high-voltage contact signals like pushbuttons, limit switches, and safety interlocks into your automation logic.

Key Specifications

• Model / P/N: 2MLI-A21A-CC – 8-point AC 220 V digital input

• Isolation: Photo-coupler isolation for enhanced safety and signal clarity 

• Rated Voltage: AC 100–240 V (+10/–15%) at 50/60 Hz, distortion <5% 

• Input Current: ~17 mA (60 Hz), ~14 mA (50 Hz) at AC 200 V nominal

• Inrush Current: ≤ 500 mA for <1 ms at AC 264 V

• On Voltage / Current: ≥ AC 80 V / ≥ 5 mA (50/60 Hz)

• Off Voltage / Current: ≤ AC 30 V / ≤ 1 mA (50/60 Hz)

• Hot-Swap Ready: Replaceable during operation with CPU module software supports

• Use Cases: Ideal for high-voltage input tasks such as motor interlocks, safety circuits, and plant-machine interfaces