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How many poles are required on motor starters for the following motors a240-volt single-phase induction motor b440-volt three-phase induction motor?
Updated: 7/30/2025
For a 240-volt single-phase induction motor, a two-pole motor starter is typically required, as it connects to the two live conductors of the single-phase supply. For a 440-volt three-phase induction motor, a three-pole motor starter is needed, as it connects to the three phases of the three-phase supply.
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