You should be good! 240 is the maximum voltage that breakers are rated to insulate against, I'd guess between the sides and other exposed conductors is the limiting factor. They trip based on current, and when closed don't have any dependance on your system operating voltage, since there's no voltage across the closed contacts. Oh ok great There is a positive pole (+) and a negative pole (-). For an adapter to work, the positive plug must mate with a negative receptacle or vice versa. By nature, direct current is a one-way street Running 230V Motor on 250V? by SteveHGraham » Sat Oct 24, 2015 7:59 pm. Someone near me is selling a big air blower with a 1 HP 3-phase Baldor motor for 50 bucks. I have no use for a blower, but I am happy to detach that part and put it by the curb if the motor is useful. The motor is rated for 230/460, and the AC in my garage measures 250. 460 is a motor meant for 480v. 575 is a motor meant for 600Y/347 in Canada and some parts of US. They're actually different. 250 is receptacle name plate for 230 delta, just as your average household outlet is 125 rated. For 50A, 208Y/120v 50A receptacle would be NEMA L21-50R (5 pins 3 poles + N + G. \$\begingroup\$ If you are switching mains voltage inside a machine, use listed components e.g. From Mouser or Digi-Key. If you are switching mains voltage as part of house wiring, you must use relays listed for direct use in mains wiring installation, such as RiB's, which are pretty much the same relay in a listed enclosure. \$\endgroup\$ Thankfully my roommate had one for when she travels, and I was able to borrow it! Yes, 240 and 250 are basically the same thing, and if the electronic is bivolt (I.e. explicitly says 110-240) you’ll be fine. If it's just an adapter the voltage marked on it is irrelevant - what matters is the mains voltage. 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. P = V x V/R. R = V x V/P = 230V x 230V / 1800W = 29.39 ohms. P = VI. P = V x V / R = 240V x 240V / 29.39 ohms = 1960W. so an 1800W element at 230V will provide 1960W at 240V, which is so close to 2000W as to make absolutely no difference. Besides, no one has 240V at home all the time. 7T8xTQL.