The ABB Unitrol Output Signal Limiter Module (HEIR440820R1) is designed to ensure the safe and reliable performance of control systems by limiting the output signals of various process equipment. This module effectively protects connected devices from excessive signals that could potentially lead to damage or operational failures. Featuring robust signal processing capabilities, the Unitrol Output Signal Limiter Module integrates seamlessly within the ABB control architecture, enhancing system stability and reliability. Its compact design allows for easy integration into existing setups, making it a valuable addition for any industrial automation application requiring precise control and signal management.