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What is the full load running current of a 3hp 208volt single phase continuous duty ac motor?
Wiki User
∙ 10y ago
It would probably be 20-30 amps.
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The electrical code book states a value of 18.7amps for a 3HP 208 volt motor. If the nameplate data is available it is always best to use it when calculating wire size and overload protection for the motor.
Wiki User
∙ 10y ago
Wiki User
∙ 8y agoThe code book stated amperage for a three phase three HP 220 volt motor is 9.6 amps. This amperage is for calculation purposes only. The motors actual nameplate amperage should always be used to calculate wire and breaker sizing. Remember that the breaker for a motor has to be 250% of the motors full load amperage. The wire size has to be sized at 125% of the motor's full load amperage.
Wiki User
∙ 12y agoAccording to NEC Table 430.250, a common induction-type squirrel-cage motor, 3-phase, 208V, 1HP would draw 4.6A.
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