ABB Measurement & Analytics Microprocessor-ControlledElectronic Unit EBN861

The EBN861 is a microprocessor-controlled electronic unit for continuous positioning of Contrac RHD and RSD actuators, operating on a 230 V AC single-phase power supply. It features an IP66 field-mount housing, analog signal interfaces for 0/4 to 20 mA setpoint and feedback, three digital inputs and three digital outputs, and supports digital communication via RS232, HART, and PROFIBUS DP/V1. The unit provides stepless speed and torque adjustment, end position signaling, and programmable control characteristics, with operationally stable performance across ambient temperatures from -25 to 55 °C. Weight is 40 kg, and electrical connections use screw terminals and plug connectors. It meets corrosion protection standards for category C5-I environments per DIN EN 15714 and EN ISO 12944-2.