What is the maximum kw you can put through a 13 amp plug?

A standard 13 amp plug can safely handle a maximum of 3,000 watts (or 3 kW) at 230 volts. This is calculated using the formula: Power (W) = Voltage (V) × Current (A). Therefore, with a current of 13 amps, the maximum power output is 13 amps × 230 volts = 2,990 watts, typically rounded to 3,000 watts for safety considerations. It's important to ensure the device plugged in does not exceed this limit to prevent overheating and potential fire hazards.