6HC water-filled submersible motor

The 380–415 V, three-phase, 50 Hz range lists direct start with one cable and star–delta start with two cables. Select that version to suit the intended starter and confirm the terminal/lead diagram. Adding a star–delta panel above ground does not establish compatibility with an existing one-cable motor. Cable length, conductor size and permitted voltage drop also need the actual installation data.

For example, 6HC15000 is listed at 36.1 A rated current and 15 kW shaft output. That 36.1 A value is not an inrush figure and is insufficient by itself to size generator starting capacity. State the start method, available supply and pump load when obtaining the starting-current and acceleration requirements. Other voltages and 60 Hz are offered on request; do not apply this 50 Hz table unchanged to them.

The manufacturer states NEMA dimension standards and lists an AISI 420 thrust bearing, but the posted rating table gives no allowable axial thrust. Obtain the shaft/coupling drawing and permissible thrust for the chosen pump stack. Check both steady operation and startup conditions; a common nominal six-inch diameter does not establish the coupling, register or thrust capacity.