The Siemens SIRIUS 3RF2320-1AA02-0KN0 is a single-phase solid-state contactor designed for zero-point switching in industrial power control applications. It operates with a 24 V DC control input and supports operational load currents up to 20 A over a voltage range of 24 to 230 V AC. Equipping an integrated heat sink, it is designed for convenient DIN rail or panel mounting.