The Siemens 3RK1322-1FS02-1AA1 is an AS-interface compact reversing starter in an IP65 enclosure — a self-contained motor control unit for reversing applications that mounts directly on the machine frame, not inside a control cabinet. The bimetal overload relay is set for 3.5 to 5 A, matching the motor full-load current in that power band.
Integration details for panel and machine builders
The main current circuit connects via tab terminals (9-pole motor outgoing feeder and 9-pole power connection), so the wiring pattern is fixed: match the mating connector to the tab layout. The unit includes a motor brake output rated 24 V DC / 3 A, which handles a small holding brake on the motor shaft — common for vertical-load reversing applications where the load must not drift when power is removed.