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Circuit Wiring - Single Phase (230V) Electrical Motors

Recommended copper wire gage and transformer size for single phase - 230 Volts - electrical motors

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All wiring and electrical connections should comply with the National Electrical Code (NEC) and with local codes and practices.

Wire Gauge (AWG)
Transformer		Distance from Motor to Transformer (feet)
hp	kVA	100	150	200	300	500
1.5	3	10	8	8	6	4
2	3	10	8	8	8	4
3	5	8	8	8	4	2
5	7.5	6	4	4	2	0
7.5	10	6	4	3	1	0

1 ft (foot) = 0.3048 m

If undersized wire is used between the motor and the power source the starting and load carrying capabilities of the motor will be limited.

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en: electrical motor wire
es: cable del motor eléctrico
de: Elektromotor Draht

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