The Siemens 3RK1322-1CS02-0AA3 is an AS-interface compact direct starter in an IP65-rated enclosure — a self-contained motor control unit for distributed installations where you want the starter out on the machine frame, not back in a central panel. The 190 mm depth, 120 mm width, and 270 mm height give you the envelope to plan for on-machine mounting brackets or pedestals.
The setting range of 1.8 A to 2.5 A covers small motor frames — think fractional-horsepower conveyors, agitators, or fan drives. That simplifies coordination in a distribution board feeding multiple machine zones. AS-interface protocol onboard (no PROFIBUS DP) means this starter talks directly to an AS-i master via the yellow flat cable — no separate gateway needed for the motor start/stop and feedback. The two integrated inputs can take local pushbuttons or proximity sensors right at the machine. The built-in motor brake output (product component Motor brake output = Yes) handles a DC brake coil directly, saving an external contactor for applications like conveyors that need a quick stop.
Integration notes
The DC voltage type refers to the AS-i bus power and control logic, not the motor supply.