Mitsubishi A1SX10 16-Point AC Input Module for MELSEC-A Series

The Mitsubishi A1SX10 (A1SX10) is a 16-channel AC digital input module designed for use with MELSEC-A series programmable logic controller systems. Serving as a local input unit within the PLC assembly, this module interfaces external AC field devices with the central processing unit, enabling real-time monitoring and automation of industrial machinery. It provides 16 discrete digital inputs rated for 100 to 120 VAC operation, allowing seamless integration with standard line-voltage control devices such as pushbuttons, selector switches, limit switches, relay contacts, and presence sensors. Operating within MELSEC-A racks, the A1SX10 converts incoming alternating current signals into logic-level signals processed by the controller program. The unit mounts directly onto compatible base units, offering reliable electrical isolation and signal conditioning to safeguard sensitive control circuits against noise and voltage disturbances. This AC input module is widely utilized across factory automation environments, material handling installations, and process control applications that require dependable digital signal acquisition at nominal 100-120 VAC levels.