I'm building a robotic tea-maker/watchdog robot and have a power problem. I would like to be able to have the robot approach a socket and insert the power cord of a cheap immersion heater (120V, 300W, see links below) to turn the heater on. However, the force and precision required to plug it into the wall is beyond the capabilities of my stepper motors/Arduino.
My solution was a magnetic breakaway power cord like the charger on a Mac but at higher voltage. Deep fat fryers have suitable ones (120V, high power, see links below). However, the problem is I need both sides of the connector, and I can only find the magnetic breakaway power cord, not the opposite side, which would normally be built into the deep fat fryer. I don't fancy buying a whole fryer just to get one little part...
Any ideas? Alternatives to a breakaway cord? Anyone know of any (cheap) 120V induction chargers? I'll resort to a mechanical on/off switch and just leave the robot plugged in if I have to, but I was hoping for something a bit sleeker.