The RGC1P48AA50E is a 1-phase proportional switching solid state contactor designed to control the output power of AC loads via an analog control signal. It operates with a rated voltage of 190-550 VAC and handles a rated operational current of 50 AAC at 40°C. The device is controlled by a 4-20 mADC input and features selectable switching modes, including phase angle, full cycle, and soft start for limiting inrush current. Key features include an integrated heatsink, built-in varistor for overvoltage protection, and LED status indicators for control and load status. This controller is ideal for applications requiring precise power regulation, such as controlling short-wave infrared heaters and other resistive loads in industrial environments.