According to our research, the Kärcher high-pressure cleaner requires a standard 230 V (alternating current) socket for operation. The power consumption is 3,000 watts. In Switzerland, sockets with 10 A (amperes) are common, which can deliver a maximum output of 2,300 watts. However, as the K 7 requires 3,000 watts, a 16 A socket outlet is required, which can provide a higher output of up to 3,680 watts