The RGC1P23AA42ET is a 1-phase proportional solid state contactor with an integrated heatsink, designed for controlling AC loads. It operates on a line voltage of 85-265 VAC and handles a rated operational current of 43 AAC at 40°C, controlled via a 4-20 mADC analog input. This controller offers several user-selectable switching modes, including phase angle control, full cycle control, and soft starting for limiting inrush current. Integrated features such as varistor overvoltage protection, LED status indicators, and an included tamper-proof cover enhance reliability and security in applications like resistive heating and short-wave infrared heater control.