The S24D25 is a single-phase solid-state relay designed for AC/DC control applications with zero-cross turn-on switching. It features a 24 Vac nominal line voltage rating with a 25 A output current capacity and operates across a load voltage range of 12 to 280 Vrms. The relay incorporates an internal snubber for output protection, optical isolation to protect the control from load transients, and a triac output suitable for resistive and inductive loads. With excellent thermal performance, tight zero-cross window for low EMI, and high immunity to surges, the S24D25 is ideal for heating control, motor control, light dimmers, and industrial process control applications.