To find out how many amps is 5,000 watts, let’s assume a standard residential electrical supply voltage of 230V and divide watts by Volts: Required amperage = 5000W / 230V. Required amperage = 21.74A. You can plug these values into the watts to amps calculator to get the same answer: Example 2 — How many amps is 3,000 watts? A dual voltage rated appliance will display for example ‘INPUT: 110-240V’ on the body of the appliance or its power supply. This means that you will not need a converter or transformer but just a travel adaptor, because United Kingdom operates on a 230V supply voltage, which is within the 110-240V range that the dual voltage appliance Then I make a portable box which has 2 cords/plugs to plug into each phase of the 120V outlets, and in the box wires to the 240v twist locks and/or a 240 plug for the compressor using each phase. I would only be using one compressor at a time or location. I may do 2 boxes, one with the twist locks for the deburrs and another with the 240v outlet. Electricity. A common Japanese plug. The voltage in Japan is 100 Volt, which is different from North America (120V), Central Europe (230V) and most other regions of the world. Japanese electrical plugs and outlets resemble North American ones. Plugs come in various versions, but most commonly they are non-polarized and ungrounded with two pins. A 240-volt, GFCI-protected electrical outlet is the new standard for electric dryers. Additionally, four receptacle slots are recommended for the safest dryer use. Regular outlets are 120-volt, so they aren’t appropriate. Gas dryers use electricity, but much less of it. They are usually rated 120-volts. 3 types of mains plugs suitable for use in Singapore. (1) The 2.5AMP 2 round-pin mains plug – This is generally used for electronics appliances such as TV, DVD and audio sets. These appliances do not rely on the ‘Earth’ wire for protection from a short circuit and therefore only 2 pins are needed – one for the ‘Live’ wire and the Also I note the cynical comments about wanting to plug 20A devices into a 30A circuit. They are not very relevant since in asking for a code-compliant solution. For example code-compliant 15A receptacles are rated for 20A passthrough even though they are NEMA 5-15. So they will not melt when people plug in power strips and draw over 15A from them. From google main page: Most modern residential circuits are 15 or 20 amps, so we're looking at a max load of either (15A x 120V =) 1800 watts or (20A x 120V =) 2400 watts before the breaker trips. The breaker will be labeled either 15 or 20. Each socket (presumably for flat pin plugs) is designed to deliver a maximum of 13 amps - hence the 13 KCAx5.