Kromschroder Servomotor IC20-07W2TR10 88300066

The Kromschroder Servomotor IC20-07W2TR10 (SKU 88300066) is an actuator designed for precise rotary movement from 0 to 90 degrees. It operates on a 230 V supply at 50 Hz and uses three-point step control. The device provides a torque of 2 Nm and has a duty cycle of 100%. It is intended for adjusting gas and air volumes in burner and boiler systems, and when paired with a linear flow control VFC (IFC), it can manage control ratios up to 25:1. The actuator features voltage-free limit switches and an adjustable holding torque, with a feedback potentiometer rated at 0.5 W. It complies with EU directives 2014/35/EU and 2014/30/EU, and safety standard DIN EN 60730-1.

When selecting a replacement actuator of this type, ensure the supply voltage, frequency, and control signal type (three-point) match the system. The torque and running time must be compatible with the valve or damper being operated. Check the mounting dimensions and shaft connection to ensure proper fit. The electrical connection uses screw terminals, and the line entrance is 3 x M20 plastic cable glands. Verify the ambient temperature range and that no condensation is permitted in the installation environment.

Common failure modes for actuators of this kind include motor burnout, gear wear, or failure of the feedback potentiometer. Symptoms may include the actuator not moving, moving erratically, or failing to reach the correct position. The equipment may show incorrect gas or air flow, leading to poor combustion or system shutdown. Check for voltage at the terminals, inspect the limit switches for proper operation, and measure the potentiometer resistance to diagnose issues.