Answer / Rupendra Bahadur Singh

For a 15 HP monoblock pump with a 3-phase power supply and a service wire, an appropriate armored cable would be a Type THWN-2 or THHN-2 wire. The exact cable size (gauge) depends on the voltage rating of the circuit and should be selected according to NEC (National Electrical Code) or IEC (International Electrotechnical Commission) guidelines.

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