240volt

240 volt (240 V) is a nominal electrical potential difference widely used for power distribution. It is the root mean square (RMS) value of the alternating current supply, and actual voltages vary within regional tolerances. The term remains common, though some regions use 230 V as the nominal value and others still reference 240 V in legacy contexts.

Regional variations exist. In North America, 240 V is obtained between two live conductors in a split-phase 120/240 V system: each leg is 120 V relative to neutral, and the voltage between the two legs is 240 V. In Europe, much of Asia, Africa, and other regions, domestic supplies are typically around 230 V at 50 Hz, with tolerances that can include roughly 216–253 V. Equipment labeled for 230 V is generally designed to cope with this range.

Usage and applications include high-power appliances and machinery. In homes, 240 V circuits commonly power electric ranges, water heaters, clothes dryers, air conditioners, and certain large motors. Circuit protection commonly involves dedicated circuits with appropriate overcurrent protection (for example, 20–60 A, depending on the appliance). Equipment may be labeled 240 V or 230 V and may tolerate a range of voltages.

Safety and compatibility considerations are important. Connecting devices to 240 V requires proper outlets or hard-wired connections, proper grounding, and appropriate overcurrent protection. Not all devices sold in a region are compatible with 240 V without voltage conversion or dual-voltage operation. Plug and socket types vary by country, affecting compatibility and installation.