Kromschroder Actuator IC50-30W20TR10 74215214

The Kromschroder IC50-30W20TR10 actuator (SKU 74215214) is a three-point step control actuator designed for precise rotary movement between 0 and 90 degrees. It operates on 230 V AC, 50–60 Hz, with a torque of 20 Nm and a duty cycle of 100%. The actuator includes a feedback potentiometer of 1000 ohms, maximum 1 W, with a wiper current of 0.1 A. It has screw terminals for cables up to 2.5 mm², three M20 plastic cable glands, and an IP enclosure with safety class I. The actuator stops at its current position when power is disconnected and is compatible with the Kromschroder DKR butterfly valve.

When selecting an actuator of this type, ensure the supply voltage, frequency, torque, and control signal (three-point step) match the application. The actuator must be compatible with the valve model, such as the DKR butterfly valve, and the mounting dimensions must align. Check the electrical connection requirements, including cable cross-section and terminal type, and verify that the ambient and storage temperature ranges are suitable for the installation environment.

Common failures of this actuator type include loss of torque or holding torque, which may cause the valve to drift from its set position. Electrical issues such as short circuits or open circuits in the feedback potentiometer can lead to incorrect position feedback. Mechanical wear or condensation inside the enclosure can cause erratic operation or complete failure. Check the power supply, wiring connections, and feedback potentiometer resistance to diagnose issues.