What the 9 A Rating Means
The LP1D0910BW: The 9 A rating governs the continuous current the main poles can carry in AC-3 utilization category (starting and stopping squirrel-cage motors under load). For a 3-phase 400 V motor, that roughly corresponds to a 4 kW motor — enough for a small hydraulic pump or a 1.5 kW conveyor drive. The built-in 1 N/O + 1 N/C auxiliary gives you one feedback contact for the PLC and one for a holding circuit, which covers the basic control scheme without an add-on block.