The Siemens 3RK1300-0BS01-1AA0 is an EM 300 RS electromechanical reversing starter designed for the ET 200X distributed I/O system. The setting range of 0.14...0.2 A covers small motors up to 0.06 kW at 400 V AC-3 duty — the AC-3 rating means it switches motor loads under full load, not just resistive loads, so the 0.06 kW figure is the one that governs real motor starting and stopping.
The operating voltage range is 400...500 V, which covers standard 400 V three-phase networks across Europe and much of Asia. For a 0.06 kW motor, 50 A Icu is generous headroom, but it means the starter coordinates with a standard 50 A rated circuit-breaker for short-circuit protection. The IP65 rating means the housing is dust-tight and protected against water jets from any direction, so it handles washdown environments in food, beverage, or packaging lines.
This starter is part of the Siemens ET 200X family — a distributed I/O and motor starter system that lives on the machine, not in a central cabinet. The 3RK1300-0BS01-1AA0 includes a 9-pole motor feeder and a 9-pole power connection, so it drops into the ET 200X backplane and communicates over PROFIBUS DP. The bus communication function means the PLC sees the starter's status and can command forward/reverse directly over the network. The operating temperature range of 0...55 °C covers most factory-floor conditions but not freezer or high-temp oven zones.