Kromschroder Servo motor IC20-60W3TR10 88300069

The Kromschroder IC20-60W3TR10 (SKU 88300069) is a servo motor designed for precise rotational control from 0 to 90 degrees, used to modulate gas and air volumes in burners and boilers. It operates on a 230 V supply at 50–60 Hz, with a torque of 3 Nm and a duty cycle of 100%. The actuator features three-point step control, voltage-free limit switches, and a feedback potentiometer rated at 0.5 W. It halts at its current position upon power disconnection and is certified to EU directives 2014/35/EU and 2014/30/EU, as well as DIN EN 60730-1. The unit weighs 1950 g and has a storage temperature range of -20 to 40 °C.

When selecting a replacement actuator of this type, verify the supply voltage, frequency, torque, and control signal compatibility with the existing system. The mounting dimensions and shaft coupling must match the original, and the feedback potentiometer resistance (typically 1 kΩ) should correspond to the controller's input. Ensure the cable cross-section (up to 4 mm²) and line entry (3 x M20) are suitable for the installation. The actuator's angle of rotation and holding torque must meet the application requirements.

Common failures include worn potentiometers causing erratic position feedback, limit switch malfunctions leading to incorrect travel, and motor burnout due to overloading or voltage spikes. Symptoms may include the actuator not moving, moving intermittently, or failing to reach the commanded position. Check for loose connections, damaged cables, and verify the feedback signal and limit switch operation with a multimeter.