Given that 230V nominal can be anything up to 253V and being a.c. those are r.m.s. values, the peak voltage in normal service is going to be something like √2 higher - say about 360V - a 250V d.c. test alone perhaps isn't that reassuring. Original switch is AC 15A 125V / 10A 250V new one is AC 15A 250V / 30A 125V can i use it without damaging the appli Stack Exchange Network Stack Exchange network consists of 183 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Mar 29, 2001. #6. Sumeet, I don't think this will work. Most trip devices are really rated for power. So, the fuse from your example will have a power rating of P=IE (230 * 2 = 460 watts) This can be reverse calculated for the current capacity at 24 volts by using I=P/E. (460 watts / 24 volts = 19.17 Amps). You can always use a power cord that is rated at a higher voltage than the maximum required by your setup. Your original cord was rated at 10A, 125V. The one you found is also rated at 10A, and it will handes 250V, twice the voltage it will actually encounter. Bottom line – You should be good to go with the new cord. 110 volt 30 amp wire can deliver 3,300W wattage. 120 volt 30 amp wire can deliver 3,600W wattage. 220 volt 30 amp wire can deliver 6,600W wattage. 240 volt 30 amp wire can deliver 7,200W wattage. You just have to make sure that your wire has an ampacity of at least 37.5 amps (as calculated from the NEC code). One of the most popular PAT testers in the UK, the PrimeTest 100 has built-in test sequences and smart technology to help you test a wide range of equipment quickly and easily. Simply push one button to run through the pre-programmed test sequences for Class 1 equipment, Class 2 equipment or Leads. Connect the PrimeTest 100 to a power outlet From what I have found they use 230 V @ 50Hz which is a normal one and within the PSU's capability. Voltages are reported in a range usually, some in the US refer to the line voltage as 110 V, others 115, and some 120 V, all refer to the same line voltage and it is all close enough since the RMS voltage of the line is generally +/- 5-10 V so that may explain how you heard it as 250 V, someone Connections must come from a 480 Y transformer on the supply side using one of the phases and the neutral wire. The other 2 phases can be tapped off or not pulled to this section of the panel. In the case where a 230V Delta transformer is used on the supply side using two phases are used. The additional phase tapped off. I know what it means when a single sockets fixture says 60W/125V, but I’m unclear on what this means and in particular I need to know what the maximum watt bulb I can use in each socket is. Obviously it isn’t running at 250V, and it seems clear that whatever the 660W means it covers all the sockets not just one. There is a use case for US style outlet strips that are rated for higher voltage. That is when you are abroad (e.g. in Europe) and want an outlet strip for your universal input US style plug devices. Then you can use a single adapter and get a strip of US style outlets. These type of power strips exist, and you can find them online. 8wly.