Active production — what that means for the BOM line
The 3RK4320-3MR51-1BA0: No stock-holding claim — confirmed per quote.
Reversing starter for AS-Interface — the bus integration angle
This is a reversing starter designed for AS-Interface bus communication, not PROFIBUS or PROFINET. It integrates into an AS-i network as a single addressable node, handling forward/reverse motor control with built-in bimetal overload protection and short-circuit protection via circuit-breakers. Control supply is 20.4-26.4 V DC — standard 24 V DC panel rail, but note the tight tolerance band; a rail that dips below 20.4 V will drop the starter.
8 A AC-3 — the motor-switching current that matters
The same 8 A figure appears for AC at 400 V, confirming the thermal current matches the switching rating. Operating frequency is capped at 80 operations per hour — this is not a high-duty-cycle starter for rapid reversing. For applications needing frequent starts, check the thermal accumulation in the bimetal element.
Mounting and panel fit — 145 x 182 x 220 mm
Dimensions are 145 mm depth, 182 mm width, 220 mm height. IP55 protection means it is dust-protected and can handle hose-down from any direction — suitable for light washdown environments like food processing or packaging lines, but not submersion.