Kromschroder Actuator IC40-A2A 88300087

The Kromschroder Actuator IC40-A2A (SKU 88300087) is a rotary actuator with a torque of 2 Nm and a runtime of 7.5 s. It operates with a 4–20 mA analogue input and has a duty cycle of 100%. The actuator has a protection class of IP65, safety class 1, and weighs 2000 g. It is designed for use in burner and boiler systems to adjust gas and air volumes. The device includes two digital outputs with relay change-over contacts, rated for contact currents from 5 mA to 2 A. Storage temperature range is -20 to 40 °C, and condensation must be prevented.

When selecting an actuator of this type, ensure the torque, runtime, and analogue input signal (e.g., 4–20 mA) match the system requirements. The mounting dimensions and shaft connection must be compatible with the valve or damper. Check the supply voltage and frequency (50–60 Hz) to match the actuator's specifications. The actuator's protection class and safety class should be suitable for the installation environment. Verify that the digital outputs are compatible with the control system's voltage and current ratings.

Common failure modes for actuators of this kind include loss of torque or holding torque, which may cause the valve to drift or fail to maintain position. If the actuator does not respond to the control signal, check the analogue input wiring and signal integrity. Overheating or condensation can lead to internal component failure, resulting in erratic operation or complete stoppage. Inspect the digital output contacts for wear or burning, especially if they have been used with high voltage or current. Regular testing of the actuator's movement and response to control signals can help identify issues early.