Voltage change is just a winding ratio, so the ratio from 120 to 240 is 2:1, the same as 240 to 480V. The problem is, voltage DESIGN is based on things like creepage distances and air separation, plus electrical dielectric properties of the insulation used. A cheap 240-120V transformer most likely will not be made with the proper clearances you Short answer - you can easily convert to a single 120V circuit but you can't convert to two circuits, you have two wires and you need three or four. Your 240V branch circuit is supplied by two wires originating at a two pole breaker in the panel. Is 480V 3 phase to 120/240V single xfmr configuration available. Does utility provide 1 ph, 2 wire, 480V, 400 amp service normally or needs special circumstances. If you have a 1000W electrical appliance connected to a 240V circuit, it will be drawing 4.17 amps. 1000W ÷ 240V = 4.17A. How many amps is 1500 watts at 120 volts? If you have a 1500W electrical appliance on a 120V circuit, it will be drawing 12.5 amps. 1500W ÷ 120V = 12.5A. The cost of an electrician to convert the outlet from 120V to 240V can cost around $30 to $50. Final thoughts. There is no problem converting an outlet from 120V to 240V, provided only one outlet is in the circuit. For converting an outlet from 120V to 240V, you need to change the breaker to a 2-pole 240V breaker. P=E^2/R, so the power generated in each lamp, which in an incandescent lamp. is used to cause the filament to glow, will be, relative to the power. generated when connected to 240 volts, 110^2/240^2 or 12100/57600 which is. approx 0.21. So your two lamps connected in parallel to 110 volts will. 120 v genset for 240 v pump. Thanks for replying. Yes, it would be only for emergencies, not permanent. I realize I would have to do some adaptor-rigging, etc. in order to get it hooked up. The genset seems adequate, though: 2,000 watt inverter-type, very quiet and economical to run. I also have a big diesel genset (12kw). It reads, "Foreign travel AC converter input: 220/240v AC 50W output: 110/120v AC 50Hz/60Hz for electric products up to 50 watts. Radios, Walkman, calculators ,cassettes players, electric shaver, camera, strobes, recargers, AC adaptors" Vay Tiền Trả Góp Theo Tháng Chỉ Cần Cmnd Hỗ Trợ Nợ Xấu.

how to convert 240v to 120v