I think you need to check the rating of the breaker first - maybe its a low current one? To calculate the current consumption in amps, you take the total wattage of the machine and divide the mains voltage into it. Example - a 3000w kettle, using a mains voltage of 250 volts uses a total of 12 amps. Any circuit breaker less than 12 amps will automatically trip out.
John, April 2008