How to reduce the power of the pre-heater 220V 3 kW?
There is a pre-heater for cars 220v - 3kW very strong, how can I do it without removing it, which would give out 1kW or 2kW? Thank.
Hello! Just put 1 diode in the wire break and the heater will work half of its power. Any 20 ampere with a reverse voltage of 400 or higher is needed. The first one I came across in the search was in the chip and dip of VS-20ETS08PBF for 150. But he needs a radiator, or use it from an old computer power supply, you can take it from the processor or from radio equipment. You can just screw a piece of aluminum profile and thicker, palm-sized should be enough. When connected to the network, it is better not to touch the radiator, it can be energized. If you want to smoothly adjust the power, look for a 3 kW dimmer. Often sold in radio and electrical products in the form of a scarf with a twist, less often in the case, but a radiator is also needed there. Without a radiator, they can operate at a maximum of 200-400 watts.
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