AS-Interface motor starter MCU — 1.25 A, CLASS 10, solid-state
It is a direct starter with solid-state switching and solid-state motor protection, rated for 1.25 A at AC-3 400 V. The unit operates on a 340…460 V power supply and a 20.4…26.4 V DC control supply, drawing power from the AS-Interface network. Two digital inputs are onboard for local start/stop or feedback, and the module includes a motor brake output component — useful for holding loads on vertical axes or conveyors. Enclosure rating is IP54, suitable for panel-mount installations in industrial environments where dust and splash protection is needed but washdown is not required.
Dimensions and integration — 290 × 215 × 205 mm
The 3RK4320-5DQ61-0BA2 measures 290 mm wide, 215 mm high, and 205 mm deep. This footprint fits a standard industrial enclosure; plan for adequate side clearance for AS-Interface cabling and heat dissipation from the solid-state output stage. Short-circuit protection is provided by upstream circuit breakers (the unit itself is not a breaker). The three-pole main current circuit handles three-phase motor loads. Operating frequency is rated up to 3,600 1/h at 50/60 Hz, so it handles frequent start-stop applications like small conveyors or indexing tables.