Kromschroder Servomotor IC20-07W2T 88300058

The Kromschroder IC20-07W2T is a three-point step control servomotor designed for precise rotary movement between 0 and 90 degrees. It operates on a 230 V supply at 50 Hz, delivering a torque of 2 Nm with a 100% duty cycle. The unit features voltage-free limit switches and a feedback potentiometer rated at 0.5 W. It is certified to 2014/35/EU, 2014/30/EU, and DIN EN 60730-1, with a protection class I and safety class 1. The device weighs 1950 g and has a storage temperature range of -20 to 40 °C.

When selecting a replacement actuator of this type, ensure the supply voltage, frequency, torque, and control type (three-point step) match the original. The mounting dimensions and shaft coupling must be compatible with the existing valve or damper. Check the angle of rotation (typically adjustable up to 90 degrees) and the electrical connections, including the feedback potentiometer resistance and power rating. The line entrance size and cable gland type should also be verified for proper installation.

Common failure modes for such actuators include loss of torque or holding torque, which may cause the valve to drift or fail to maintain position. Electrical issues like shorted or open potentiometer windings can lead to incorrect feedback signals. Mechanical wear or jamming may result in the actuator stalling or making unusual noises. If the equipment fails to modulate or responds erratically, check the limit switches and wiring for continuity and proper operation.