Kromschroder Servomotor IC20-15W3E 88300075

The Kromschroder IC20-15W3E is a servomotor designed for precise rotary motion control within a 0 to 90 degree range. 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 screw terminals for cable connections up to 4 mm2, voltage-free limit switches, and an adjustable holding torque. It is suitable for continuous control applications and can be used with butterfly valves for control ratios up to 10:1 or with linear flow controls for ratios up to 25:1. The device has a net weight of 1.95 kg and is rated for storage temperatures from -20 to 40 °C.

When selecting a replacement actuator of this type, ensure the supply voltage, frequency, torque, and control signal match the system requirements. Verify the shaft coupling dimensions and the angle of rotation needed for the application. The actuator should be mounted in a position that allows proper cable routing through the designated cable glands, and the ambient temperature must stay within the specified range without condensation. Check that the feedback potentiometer resistance and power rating are compatible with the control system.

Common failure modes for this type of actuator include motor burnout due to overloading or voltage spikes, and wear of the internal gears leading to loss of torque or erratic positioning. If the actuator fails, the controlled valve may remain in a fixed position, causing improper fuel-air ratios and potential burner shutdown. Check for visible damage, listen for unusual noises during operation, and verify the electrical connections and limit switch functionality.