1/2 Hp Well Pump Amp Draw - Web divide the wattage by the voltage to find the current. The chart below will show the average. At 240 volts, the amperage draw is lowest at about 1.55. Web to determine the normal amperage draw for your well pump, you can refer to the pump’s documentation or consult with a professional. Web a 1/2hp well pump draw will draw approximately 4.06 amps at 120v and 4.43 amps on a 110v circuit. Web well pump amperage draw chart. For example, if the pump wattage is 2,200 watts, and the voltage is 110 volts, the current is 2,200 /110 = 20 amps. Here’s the calculation for a 1/2 hp well pump with a wattage of 900 w, seven daily hours. A 30 amp breaker means the pump is smaller than 2. [(well pump wattage x daily use hours) / 1000] x electricity rate.
[(well pump wattage x daily use hours) / 1000] x electricity rate. There are many different sizes, requirements and lifespans of well pumps. For example, if the pump wattage is 2,200 watts, and the voltage is 110 volts, the current is 2,200 /110 = 20 amps. A 30 amp breaker means the pump is smaller than 2. Web divide the wattage by the voltage to find the current. At 240 volts, the amperage draw is lowest at about 1.55. Web a 1/2hp well pump draw will draw approximately 4.06 amps at 120v and 4.43 amps on a 110v circuit. The chart below will show the average. Web a 1 hp submersible well pump will require a 2.5 kw internally regulated generator to operate the pump. Here’s the calculation for a 1/2 hp well pump with a wattage of 900 w, seven daily hours. Web well pump amperage draw chart. Web to determine the normal amperage draw for your well pump, you can refer to the pump’s documentation or consult with a professional.