The story goes like this. I bought a 3 phase car lift cause it came cheap. I then bought a 3 phase convertor but when I plugged it in smoke came from the control box, upon investigation I discovered that the motor ran off 3 phase and the control box side ran off 220volts however 400volt was going into it, the convertor was wired different to the lift so I swapped around the 3 phases till I got 220volts going to the control box and 400 to the motor and it rotating the proper way. There is a 220volt relay that operates an air valve that has 2 wires going to it, the 2 wires where bridged with this capacitor that burnt out when it got the 400 volts, This is my theory,I presume the capacitor would absorb the voltage spike created by the collapse of the magnetic field in the relay when it would be switched of and protect the other electrical components in the lift, that is if it is a capacitor, But it think from the replies I got it is. I am lucky cause everthing else is working fine. Anymore replies would be greatly appreciated.