220VAC 3 Phase to 110VAC Single Phase

Nowadays, most CNC machines are using 220VAC 3 phase power supply to power up the spindle motor and other electrical components such as coolant motor and inverter. Other electrical components like lamp and servo drive are using 110VAC power supply, then in this case you need to step down the 220VAC 3 phase to 110VAC single phase.

Diagram below is showing you the simple technique to convert or step down the power line 220VAC 3 phase to 110VAC single phase. In order to convert the 220VAC 3 phase power supply into 110VAC 1 phase, you need to use proper electrical components such as Earth Leakage Circuit Breaker (ELCB) and 2 poles Miniature Circuit Breaker (MCB). You are strongly recommended to use some fuses to protect any electrical components on your CNC machine.