The 3RF2120-3AA04 is a dependable solid state relay from Siemens, part of the 3RF2 series. Rated for a maximum load of 20000 mA at 460 VAC, controlled by 15 VDC to 30 Vdc input. This Chassis-Mount relay, providing millions of silent, maintenance-free switching cycles for heaters, motors, and process control loads.