Frequency inverter for infinitely variable speed control of fans. It features a mains filter and an additional terminal strip. The motor protection function is provided via thermal contact or PTC thermistor. Control inputs are galvanically isolated, PLC compatible, and freely programmable. Setpoint inputs include 0-5 V, 0-10 V, and 0(4)-20 mA with voltage and current offset calibration functions. There is one analogue output for setpoint output at 0 - 10 V. It has six digital inputs, some of which are freely programmable. There are two signal outputs, partly freely programmable, and two potential-free digital outputs for fault and operation signaling (changeover contact). Connections are made via metric screw connections (2 x PG 12, 2 x PG 16). Factory presets allow for 15 programmable fixed speeds. The service life is approximately 80,000 hours at 80 to 85% nominal load. It is suitable for product groups DSK, DAS, DSQ, EDR 56/63/71, and all DZ... with phase insulation (special version). The ST EC 010 can also be used for remote maintenance.

Rated voltage is 3 x 380 V to 480 V (+/- 10%), with a mains frequency of 50 Hz / 60 Hz and a rated current of 4.3 A. The recommended motor power is 1500 W. The protection rating is IP 54, and the housing material is galvanized sheet steel. The color is light grey, similar to RAL 7035. The weight is 5.7 kg, with dimensions of 200 mm in width, 350 mm in height, and 157 mm in depth. The ambient temperature range is -10 °C to 50 °C. It is suitable for duct ventilators and wall-mounted ventilators, but not suitable for box fans, roof ventilators, heat recovery systems, domestic ventilators, centrifugal ventilators, or circulation ventilators.