The Siemens 3RK1300-0GS01-1AA4 is an electromechanical reversing starter from the SIRIUS 3RK1 family, designed as a compact motor control unit for the ET 200X distributed I/O system. It combines two contactors and a bimetal overload relay in one IP65 enclosure, rated at 0.18 kW for AC-3 duty at 400 V with a setting range of 0.45 to 0.63 A. Built-in PROFIBUS DP communication allows the starter to be addressed directly from a PLC over the fieldbus, eliminating separate I/O wiring for start, stop, and direction commands. The integrated motor brake output handles DC braking for motors up to 500 V / 1 A, which is common for holding brakes on vertical-axis or palletizing applications.
The AC-3 rating of 0.18 kW at 400 V defines the maximum three-phase induction motor this starter can switch under full load — typical for a small conveyor drive, agitator, or fan up to roughly 0.25 hp. The setting range 0.45 to 0.63 A on the bimetal overload matches the full-load current of such a motor; set it to the motor nameplate FLA. Operating voltage of 400 to 500 V AC covers standard European 400 V three-phase networks and 480 V North American systems. The DC control voltage type means the coil and brake circuit are DC-powered — verify your control supply polarity and free-wheel diode if driving inductive loads. Ambient temperature range 0 to 55 °C limits installation to indoor or sheltered locations; the IP65 housing protects against washdown but not against freezing or sustained high heat.
Physical dimensions and panel integration
Plan for cable entry via PG glands or M20 knockouts; the 9-pole motor feeder and 9-pole power connection require two multi-conductor cables.