# How many amps are 3000 watts

## Watts, volts, amps - the distinction is not difficult!

Application example I: When does the fuse blow?

Normal power connections are protected up to a current strength of 16 amps. This value can already be exceeded if two everyday devices are connected to the same circuit. Example: If a hair dryer with an output of 2,000 watts is plugged into a socket with a voltage of 230 volts and switched on at maximum level, the current flows with a strength of 8.7 amps. If another hair dryer or a similarly consuming device is connected to the same circuit, the current exceeds 16 amps and the fuse blows.

In older buildings there is often only one normal power connection for the stove, which is provided with a 16 ampere fuse. A standard cooker has a nominal output of 4,000 watts. If all hotplates are operated at full power and the oven is switched on, the current is around 17 amperes - the fuse will also go away here. This problem does not usually exist in newer buildings, as there is a three-phase connection for the stove. This has three phases, each of which is fused with 16 amps. Theoretically, the device can draw up to 11,000 watts of power.

Application example II: Vacation in the USA

In contrast to Europe, a mains voltage of 120 volts is common in the USA. If a hair dryer with an output of 2,000 watts is connected there, a current of around 16.7 amps would be required. Since European electrical devices are often not designed for this current strength, they cannot be operated in the USA. A voltage converter can help here.

Tip: Many electrical devices, such as laptops or razors, can be switched to the respective voltage. Modern switched-mode power supplies can even automatically adapt to the respective voltage (label: AC input 100-240V 50-60Hz). An adapter for the plug is of course still necessary.