What this SIMATIC reversing starter is
It's designed to reverse a three-phase motor on command, not just start and stop it; the reversing contactor pair is built in, so you get forward and reverse switching without external interlocks.
Trip class is adjustable across CLASS 5, 10, 20, and 30, so you can dial in the overload curve to match the motor's starting profile — class 10 for a pump, class 20 for a high-inertia fan. The IP65 enclosure seals the electronics and contacts against hose-directed water and dust ingress — this unit lives on the machine, not inside a clean control cabinet. Mounting is via screw fixing in either vertical or horizontal orientation, with dimensions of 230 mm high, 110 mm wide, and 160 mm deep. The power connection uses a socket per ISO23570, a standardized M12-style interface for the main infeed.
Fieldbus and I/O integration
This starter speaks both PROFIBUS DP and PROFINET — it's not just a motor switch, it's a distributed I/O device on the network. It provides 4 digital inputs via M12 sockets, giving you local sensor feedback without a separate remote I/O block. The I/O image uses 2 bytes of input data and 2 bytes of output data. Supply voltage is 24 V DC nominal, with a permissible range of 20.4 to 28.8 V.