Mitsubishi Electric QX10 Digital Input Module

The Mitsubishi Electric QX10 Digital Input Module is a 16-point AC input module for MELSEC-Q PLCs that interfaces 100–120 VAC field signals with your control logic. Designed for MELSEC-Q rack mounting, it uses photocoupler isolation to deliver 16 AC inputs with 100–120 VAC, 50/60 Hz, and an approximate 7–8 mA per point. Key electrical specs include an input impedance of 12–15 kΩ, a response time of about 15 ms (OFF→ON) and 20 ms (ON→OFF), and an internal current consumption of ~0.05 A at 5 V DC. Physical dimensions are approximately 27.4 × 98 × 90 mm, weight about 0.17 kg, and it uses a screw-terminal block for wiring. Operating temperature is 0 °C to 55 °C, and it is designed for MELSEC-Q rack mounting with CE, UL, and cUL certifications. Common replacements include Mitsubishi QX40 (DC input module alternative), QX28 (higher voltage AC input variant), and Allen-Bradley 1756-IA16 for similar ControlLogix AC input functionality.