A3: AUMATIC AC 01.2 positioner and position feedback signal 0/4 - 20 mA (potentiometer in actuator), thyristors OPEN, STOP, CLOSE, EMERGENCY, MODE (24 V DC), 6 programmable output contacts, AUMA power class B3
AV4MB: AUMATIC ACVExC 01.2 positionier and position feedback signal 0/4 - 20 mA (potentiometer in actuator), basic version, MODE, CLOSE, OPEN, STOP, EMERGENCY, I/O (24 V DC), 6 programmable output contacts, Modbus RTU, 3-ph; 380 V - 480 V