Single-Phase Electric Motors, Capacitors and 220 V: Frequently Asked Questions

This section gathers the topics we meet most often in the field with 220 V single-phase motors: how the microfarad value of a capacitor is determined, the difference between run and start capacitors, the role of the centrifugal switch, the check sequence for a motor that hums but will not start, and why a single-phase motor draws more current and runs warmer. For those who want to run a three-phase motor on a 220 V supply, we also explain the limits of the Steinmetz connection and the single-phase-input inverter option. The HEM Motor single-phase 220 V series covers 0.18–5.5 kW; for capacitor and current values the figure on the motor nameplate always prevails.

You can review the 220 V models on the single-phase electric motor page and reach the other motors in our store through the buy an electric motor page. Send a photo of your old motor's nameplate on WhatsApp; we will determine the right motor together based on power, speed and capacitor data.