How many kilowatts can a prepaid meter withstand?

The power capacity of prepaid meters needs to be calculated based on current capacity and voltage. Common specifications and corresponding powers are as follows:

Current capacity range: The current capacity of a single-phase prepaid meter is usually between 5A and 80A, depending on the design and manufacturing standards of the meter. For example:

The 5A specification is suitable for household lighting and low-power appliances.

The 10A specification is suitable for general household electricity, including refrigerators, washing machines, etc.

The 20A specification is suitable for high-power appliances such as air conditioners and water heaters, and can carry a power of approximately 4.4 kilowatts (220V x 20A).

The 40A specification is suitable for commercial use or simultaneous use of multiple high-power electrical appliances, and can carry a power of approximately 8.8 kilowatts (220V x 40A).

The 60A or 80A specifications are suitable for industrial electricity or special high-power requirements, with a carrying capacity of approximately 13.2 kilowatts (220V × 60A) and 17.6 kilowatts (220V × 80A), respectively.

Power calculation formula: Power (P)=Voltage (U) × Current (I). Taking the Chinese standard voltage of 220V as an example, if the rated current of the electricity meter is 20A, the maximum power is 2400W (4.4 kilowatts) of 220V × 20A.

Practical application suggestions:

In household scenarios, a 20A meter can usually meet daily needs, but it is important to avoid using multiple high-power appliances (such as air conditioners, electric water heaters, electric stoves, etc.) at the same time to prevent overloading.

In commercial or industrial scenarios, if high-power equipment is required, 40A, 60A, or 80A meters should be selected and the circuit design should comply with safety standards.