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There are four screws in a row on two pair of contacts. Divide the four into two each, left and right. The two closest (middle) screws can be used for either the pump or the power feed; two wires each. Then the other two (hots) go on the two that are the farthest apart; one on each end of the row. That keeps one power and one pump lead on each pair of contact points. They can also be reversed; pump on two farthest and power on two closest, it doesn’t matter. This applies to either voltage; 120 or 240 and either submersible or jet pumps of any kind.

Naturally the ground/s goes on the green (ground) lug. Many/most pumps do not have a ground wire.

Quality Water Associates

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