The Siemens 3RK1300-1HS01-1AA1 is an electromechanical reversing starter from the SIRIUS EM 300 RS family, designed for the ET 200 X distributed I/O system. The PROFIBUS DP interface allows the starter to be addressed directly from the PLC, eliminating discrete control wiring for forward/reverse commands.
Rated for AC-3 duty at 3 kW / 400 V — that is the motor-switching rating for a standard three-phase induction motor up to 3 kW. The setting range of 5.5...8.0 A means you dial in the full-load current of the motor within that window; the bimetal overload relay inside provides thermal protection. Short-circuit breaking capacity (Icu) at 400 V is 50 A, limited by the built-in circuit-breaker-style protection. For higher prospective fault currents, an upstream fuse or MCCB is required. The integrated motor brake output (DC 24 V / 3 A) is for an externally supplied holding brake — common on vertical-axis conveyors or gantries where the load must hold position when power is removed. The 9-pole motor feeder and 9-pole power connection handle the motor leads plus brake wiring in a single plug. The operating ambient temperature of 0...55 °C covers most industrial floor conditions without derating.
If the panel design requires a different fieldbus (e.g. AS-Interface), note that this variant does not support AS-interface — only PROFIBUS DP.
Integration notes
Mounts directly to the ET 200 X backplane or as a standalone IP65 unit. Dimensions are 140 mm wide, 270 mm high, 134 mm deep — allow clearance for the 9-pole power connector and PROFIBUS DP cable entry at the bottom. The PROFIBUS DP address is set via the rotary switches on the front. Cycle the 24 VDC supply after changing the address. The brake output is internally fused; replace only with the same rating.