Single-phase 120V System: 2-Wire
Connect one terminal to power wire; opposite terminal to neutral wire.

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Single-phase 120V/240V System: 3-Wire
Connect one terminal to power wire; opposite terminal to neutral wire.

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Single-phase 120V/208V System: 4-Wire
Connect one terminal to any one power wire; opposite terminal to neutral wire.

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Three-phase 120V/240V System: 4-Wire Delta with a high leg
Connect one terminal to any of two available 120V power wires; opposite terminal to neutral wire. Hour meter is not to be connected to the high leg.

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Single-phase 240V System: 2-Wire
Connect one terminal to power wire; opposite terminal to neutral wire.

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Single-phase 120/240V System: 3-Wire
The hour meter is to be connected across two high sides of the line. The meter is not to be connected to the neutral wire.

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Three-phase 240V System: 3-Wire Delta
Hour meter to be connected across any two power lines.

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Three-phase 120/240V System: 4-Wire Delta with a high leg
Connect one terminal to any one power wire; opposite terminal to be connected to one of two remaining power lines. Hour meter is not to be connected to the neutral wire.

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